RAD Data comm Network Card IPmux 11 User Guide

Installation and Operation Manual  
IPmux-11  
TDM Pseudowire Access  
Gateway  
Version 2.00  
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IPmux-11  
TDM Pseudowire Access Gateway  
Version 2.00  
Installation and Operation Manual  
Notice  
This manual contains information that is proprietary to RAD Data Communications Ltd. ("RAD"). No  
part of this publication may be reproduced in any form whatsoever without prior written approval by  
RAD Data Communications.  
Right, title and interest, all information, copyrights, patents, know-how, trade secrets and other  
intellectual property or other proprietary rights relating to this manual and to the IPmux-11 and any  
software components contained therein are proprietary products of RAD protected under international  
copyright law and shall be and remain solely with RAD.  
IPmux-11 is a registered trademark of RAD. No right, license, or interest to such trademark is granted  
hereunder, and you agree that no such right, license, or interest shall be asserted by you with respect  
to such trademark.  
You shall not copy, reverse compile or reverse assemble all or any portion of the Manual or the IPmux-  
11. You are prohibited from, and shall not, directly or indirectly, develop, market, distribute, license,  
or  
sell  
any  
product  
that  
supports  
substantially  
similar  
functionality  
as  
the  
IPmux-11, based on or derived in any way from the IPmux-11. Your undertaking in this paragraph shall  
survive the termination of this Agreement.  
This Agreement is effective upon your opening of the IPmux-11 package and shall continue until  
terminated. RAD may terminate this Agreement upon the breach by you of any term hereof. Upon  
such termination by RAD, you agree to return to RAD the IPmux-11 and all copies and portions  
thereof.  
For further information contact RAD at the address below or contact your local distributor.  
International Headquarters  
RAD Data Communications Ltd.  
North America Headquarters  
RAD Data Communications Inc.  
24 Raoul Wallenberg St.  
Tel Aviv 69719 Israel  
Tel: 972-3-6458181  
Fax: 972-3-6498250  
900 Corporate Drive  
Mahwah, NJ 07430 USA  
Tel: (201) 529-1100, Toll free: 1-800-444-7234  
Fax: (201) 529-5777  
© 1999–2006 RAD Data Communications Ltd.  
Publication No. 352-200-08/06  
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Limited Warranty  
RAD warrants to DISTRIBUTOR that the hardware in the IPmux-11 to be delivered hereunder shall be  
free of defects in material and workmanship under normal use and service for a period of twelve (12)  
months following the date of shipment to DISTRIBUTOR.  
If, during the warranty period, any component part of the equipment becomes defective by reason of  
material or workmanship, and DISTRIBUTOR immediately notifies RAD of such defect, RAD shall have  
the option to choose the appropriate corrective action: a) supply a replacement part, or b) request  
return of equipment to its plant for repair, or c) perform necessary repair at the equipment's location.  
In the event that RAD requests the return of equipment, each party shall pay one-way shipping costs.  
RAD shall be released from all obligations under its warranty in the event that the equipment has been  
subjected to misuse, neglect, accident or improper installation, or if repairs or modifications were  
made by persons other than RAD's own authorized service personnel, unless such repairs by others  
were made with the written consent of RAD.  
The above warranty is in lieu of all other warranties, expressed or implied. There are no warranties  
which extend beyond the face hereof, including, but not limited to, warranties of merchantability and  
fitness for a particular purpose, and in no event shall RAD be liable for consequential damages.  
RAD shall not be liable to any person for any special or indirect damages, including, but not limited to,  
lost profits from any cause whatsoever arising from or in any way connected with the manufacture,  
sale, handling, repair, maintenance or use of the IPmux-11, and in no event shall RAD's liability exceed  
the purchase price of the IPmux-11.  
DISTRIBUTOR shall be responsible to its customers for any and all warranties which it makes relating  
to IPmux-11 and for ensuring that replacements and other adjustments required in connection with  
the said warranties are satisfactory.  
Software components in the IPmux-11 are provided "as is" and without warranty of any kind. RAD  
disclaims all warranties including the implied warranties of merchantability and fitness for a particular  
purpose. RAD shall not be liable for any loss of use, interruption of business or indirect, special,  
incidental or consequential damages of any kind. In spite of the above RAD shall do its best to provide  
error-free software products and shall offer free Software updates during the warranty period under  
this Agreement.  
RAD's cumulative liability to you or any other party for any loss or damages resulting from any claims,  
demands, or actions arising out of or relating to this Agreement and the IPmux-11 shall not exceed the  
sum paid to RAD for the purchase of the IPmux-11. In no event shall RAD be liable for any indirect,  
incidental, consequential, special, or exemplary damages or lost profits, even if RAD has been advised of  
the possibility of such damages.  
This Agreement shall be construed and governed in accordance with the laws of the State of Israel.  
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Product Disposal  
To facilitate the reuse, recycling and other forms of recovery of waste  
equipment in protecting the environment, the owner of this RAD product  
is required to refrain from disposing of this product as unsorted municipal  
waste at the end of its life cycle. Upon termination of the unit’s use,  
customers should provide for its collection for reuse, recycling or other  
form of environmentally conscientious disposal.  
General Safety Instructions  
The following instructions serve as a general guide for the safe installation and operation of  
telecommunications products. Additional instructions, if applicable, are included inside the manual.  
Safety Symbols  
This symbol may appear on the equipment or in the text. It indicates  
potential safety hazards regarding product operation or maintenance to  
operator or service personnel.  
Warning  
Danger of electric shock! Avoid any contact with the marked surface while  
the product is energized or connected to outdoor telecommunication lines.  
.
Protective earth: the marked lug or terminal should be connected to the building  
protective earth bus.  
Some products may be equipped with a laser diode. In such cases, a label  
with the laser class and other warnings as applicable will be attached near  
the optical transmitter. The laser warning symbol may be also attached.  
Warning  
Please observe the following precautions:  
Before turning on the equipment, make sure that the fiber optic cable is  
intact and is connected to the transmitter.  
Do not attempt to adjust the laser drive current.  
Do not use broken or unterminated fiber-optic cables/connectors or look  
straight at the laser beam.  
The use of optical devices with the equipment will increase eye hazard.  
Use of controls, adjustments or performing procedures other than those  
specified herein, may result in hazardous radiation exposure.  
ATTENTION: The laser beam may be invisible!  
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In some cases, the users may insert their own SFP laser transceivers into the product. Users are alerted  
that RAD cannot be held responsible for any damage that may result if non-compliant transceivers are  
used. In particular, users are warned to use only agency approved products that comply with the local  
laser safety regulations for Class 1 laser products.  
Always observe standard safety precautions during installation, operation and maintenance of this  
product. Only qualified and authorized service personnel should carry out adjustment, maintenance or  
repairs to this product. No installation, adjustment, maintenance or repairs should be performed by  
either the operator or the user.  
Handling Energized Products  
General Safety Practices  
Do not touch or tamper with the power supply when the power cord is connected. Line voltages may be  
present inside certain products even when the power switch (if installed) is in the OFF position or a fuse is  
blown. For DC-powered products, although the voltages levels are usually not hazardous, energy hazards  
may still exist.  
Before working on equipment connected to power lines or telecommunication lines, remove jewelry or any  
other metallic object that may come into contact with energized parts.  
Unless otherwise specified, all products are intended to be grounded during normal use. Grounding is  
provided by connecting the mains plug to a wall socket with a protective earth terminal. If an earth lug is  
provided on the product, it should be connected to the protective earth at all times, by a wire with a  
diameter of 18 AWG or wider. Rack-mounted equipment should be mounted only in earthed racks and  
cabinets.  
Always make the ground connection first and disconnect it last. Do not connect telecommunication cables  
to ungrounded equipment. Make sure that all other cables are disconnected before disconnecting the  
ground.  
Connection of AC Mains  
Make sure that the electrical installation complies with local codes.  
Always connect the AC plug to a wall socket with a protective ground.  
The maximum permissible current capability of the branch distribution circuit that supplies power to the  
product is 16A. The circuit breaker in the building installation should have high breaking capacity and must  
operate at short-circuit current exceeding 35A.  
Always connect the power cord first to the equipment and then to the wall socket. If a power switch is  
provided in the equipment, set it to the OFF position. If the power cord cannot be readily disconnected in  
case of emergency, make sure that a readily accessible circuit breaker or emergency switch is installed in the  
building installation.  
In cases when the power distribution system is IT type, the switch must disconnect both poles  
simultaneously.  
Connection of DC Mains  
Unless otherwise specified in the manual, the DC input to the equipment is floating in reference to the ground.  
Any single pole can be externally grounded.  
Due to the high current capability of DC mains systems, care should be taken when connecting the DC supply  
to avoid short-circuits and fire hazards.  
DC units should be installed in a restricted access area, i.e. an area where access is authorized only to  
qualified service and maintenance personnel.  
Make sure that the DC supply is electrically isolated from any AC source and that the installation complies  
with the local codes.  
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The maximum permissible current capability of the branch distribution circuit that supplies power to the  
product is 16A. The circuit breaker in the building installation should have high breaking capacity and must  
operate at short-circuit current exceeding 35A.  
Before connecting the DC supply wires, ensure that power is removed from the DC circuit. Locate the  
circuit breaker of the panel board that services the equipment and switch it to the OFF position. When  
connecting the DC supply wires, first connect the ground wire to the corresponding terminal, then the  
positive pole and last the negative pole. Switch the circuit breaker back to the ON position.  
A readily accessible disconnect device that is suitably rated and approved should be incorporated in the  
building installation.  
If the DC mains are floating, the switch must disconnect both poles simultaneously.  
Connection of Data and Telecommunications Cables  
Data and telecommunication interfaces are classified according to their safety status.  
The following table lists the status of several standard interfaces. If the status of a given port differs from  
the standard one, a notice will be given in the manual.  
Ports  
Safety Status  
V.11, V.28, V.35, V.36, RS-530,  
X.21, 10 BaseT, 100 BaseT,  
Unbalanced E1, E2, E3, STM, DS-2,  
DS-3, S-Interface ISDN, Analog voice  
E&M  
SELV Safety Extra Low Voltage:  
Ports which do not present a safety hazard. Usually  
up to 30 VAC or 60 VDC.  
xDSL (without feeding voltage),  
Balanced E1, T1, Sub E1/T1  
TNV-1 Telecommunication Network Voltage-1:  
Ports whose normal operating voltage is within the  
limits of SELV, on which overvoltages from  
telecommunications networks are possible.  
FXS (Foreign Exchange Subscriber)  
TNV-2 Telecommunication Network Voltage-2:  
Ports whose normal operating voltage exceeds the  
limits of SELV (usually up to 120 VDC or telephone  
ringing voltages), on which overvoltages from  
telecommunication networks are not possible. These  
ports are not permitted to be directly connected to  
external telephone and data lines.  
FXO (Foreign Exchange Office), xDSL TNV-3 Telecommunication Network Voltage-3:  
(with feeding voltage), U-Interface  
Ports whose normal operating voltage exceeds the  
ISDN  
limits of SELV (usually up to 120 VDC or telephone  
ringing voltages), on which overvoltages from  
telecommunication networks are possible.  
Always connect a given port to a port of the same safety status. If in doubt, seek the assistance of a  
qualified safety engineer.  
Always make sure that the equipment is grounded before connecting telecommunication cables. Do  
not disconnect the ground connection before disconnecting all telecommunications cables.  
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Some SELV and non-SELV circuits use the same connectors. Use caution when connecting cables.  
Extra caution should be exercised during thunderstorms.  
When using shielded or coaxial cables, verify that there is a good ground connection at both ends. The  
earthing and bonding of the ground connections should comply with the local codes.  
The telecommunication wiring in the building may be damaged or present a fire hazard in case of  
contact between exposed external wires and the AC power lines. In order to reduce the risk, there are  
restrictions on the diameter of wires in the telecom cables, between the equipment and the mating  
connectors.  
Caution  
To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cords.  
Attention  
Pour réduire les risques s’incendie, utiliser seulement des conducteurs de  
télécommunications 26 AWG ou de section supérieure.  
Some ports are suitable for connection to intra-building or non-exposed wiring or cabling only. In such  
cases, a notice will be given in the installation instructions.  
Do not attempt to tamper with any carrier-provided equipment or connection hardware.  
Electromagnetic Compatibility (EMC)  
The equipment is designed and approved to comply with the electromagnetic regulations of major  
regulatory bodies. The following instructions may enhance the performance of the equipment and will  
provide better protection against excessive emission and better immunity against disturbances.  
A good earth connection is essential. When installing the equipment in a rack, make sure to remove all  
traces of paint from the mounting points. Use suitable lock-washers and torque. If an external  
grounding lug is provided, connect it to the earth bus using braided wire as short as possible.  
The equipment is designed to comply with EMC requirements when connecting it with unshielded  
twisted pair (UTP) cables. However, the use of shielded wires is always recommended, especially for  
high-rate data. In some cases, when unshielded wires are used, ferrite cores should be installed on  
certain cables. In such cases, special instructions are provided in the manual.  
Disconnect all wires which are not in permanent use, such as cables used for one-time configuration.  
The compliance of the equipment with the regulations for conducted emission on the data lines is  
dependent on the cable quality. The emission is tested for UTP with 80 dB longitudinal conversion loss  
(LCL).  
Unless otherwise specified or described in the manual, TNV-1 and TNV-3 ports provide secondary  
protection against surges on the data lines. Primary protectors should be provided in the building  
installation.  
The equipment is designed to provide adequate protection against electro-static discharge (ESD).  
However, it is good working practice to use caution when connecting cables terminated with plastic  
connectors (without a grounded metal hood, such as flat cables) to sensitive data lines. Before  
connecting such cables, discharge yourself by touching earth ground or wear an ESD preventive wrist  
strap.  
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FCC-15 User Information  
This equipment has been tested and found to comply with the limits of the Class A digital device,  
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection  
against harmful interference when the equipment is operated in a commercial environment. This  
equipment generates, uses and can radiate radio frequency energy and, if not installed and used in  
accordance with the Installation and Operation manual, may cause harmful interference to the radio  
communications. Operation of this equipment in a residential area is likely to cause harmful  
interference in which case the user will be required to correct the interference at his own expense.  
Canadian Emission Requirements  
This Class A digital apparatus meets all the requirements of the Canadian Interference-Causing  
Equipment Regulation.  
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel  
brouilleur du Canada.  
Warning per EN 55022 (CISPR-22)  
Warning  
This is a class A product. In a domestic environment, this product may cause  
radio interference, in which case the user will be required to take adequate  
measures.  
Cet appareil est un appareil de Classe A. Dans un environnement résidentiel, cet  
appareil peut provoquer des brouillages radioélectriques. Dans ces cas, il peut  
être demandé à l’utilisateur de prendre les mesures appropriées.  
Avertissement  
Achtung  
Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können  
bei Betrieb dieses Gerätes Rundfunkströrungen auftreten, in welchen Fällen der  
Benutzer für entsprechende Gegenmaßnahmen verantwortlich ist.  
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Declaration of Conformity  
Manufacturer's Name:  
RAD Data Communications Ltd.  
Manufacturer's Address:  
24 Raoul Wallenberg St.  
Tel Aviv 69719  
Israel  
declares that the product:  
Product Name:  
IPmux-11  
conforms to the following standard(s) or other normative document(s):  
EMC:  
EN 55022: 1998  
EN 50024: 1998  
EN 60950: 2000  
Information technology equipment – Radio disturbance  
characteristics – Limits and methods of measurement.  
Information technology equipment – Immunity characteristics  
– Limits and methods of measurement.  
Safety:  
Safety of information technology equipment.  
Supplementary Information:  
The product herewith complies with the requirements of the EMC Directive 89/336/EEC, the Low  
Voltage Directive 73/23/EEC and the R&TTE Directive 99/5/EC for wired equipment. The product was  
tested in a typical configuration.  
Tel Aviv, September 22, 2004  
Haim Karshen  
VP Quality  
European Contact: RAD Data Communications GmbH, Otto-Hahn-Str. 28-30,  
85521 Ottobrunn-Riemerling, Germany  
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Quick Start Guide  
Installation of IPmux-11 should be carried out only by an experienced technician.  
If you are familiar with IPmux-11, use this guide to prepare the unit for operation.  
1. Installing IPmux-11  
Connecting the Interfaces  
1. Connect the network to the RJ-45 connector designated ETH 1.  
2. Connect the user LAN(s) to the RJ-45 connector(s) designated ETH 2 or ETH 3.  
3. Connect the E1 or T1 line to the RJ-45 connector designated E1 or T1.  
Caution  
When connecting balanced E1 or T1 equipment, make sure to use only 4-wire  
RJ-45 connectors with the following pins used for receiving and transmitting data:  
1, 2, 4, 5. Do not use 8-pin RJ-45 connectors.  
4. Connect the control terminal to the rear panel CONTROL connector.  
or  
Connect a Telnet host, or a PC running a Web browsing application to one of  
the user LAN ports.  
Connecting the Power  
Connect the power cable to the power connector on the IPmux-11 rear panel.  
The unit has no power switch. Operation starts when the power is applied  
to the rear panel power connector.  
2. Configuring IPmux-11  
Configure IPmux-11 to the desired operation mode via an ASCII terminal connected  
to the rear panel CONTROL port. Alternatively, you can manage IPmux-11 over  
Telnet, or via a PC running a Web browsing application connected to one of the user  
LAN ports.  
Starting a Terminal Session for the First Time  
To start a terminal session:  
1. Connect a terminal to the CONTROL connector of IPmux-11.  
2. Turn on the control terminal PC and set its port parameters to 115,200 baud,  
8 bits/character, 1 stop bit, no parity. Set the terminal emulator to ANSI VT100  
emulation (for optimal view of system menus).  
3. Power IPmux-11 up and proceed with management session.  
IPmux-11 Ver. 2.00  
Configuring IPmux-11  
1
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Quick Start Guide  
Installation and Operation Manual  
Configuring the IP Management Parameters  
The host IP address, subnet mask and default gateway IP address must be  
configured via an ASCII terminal.  
To configure the IP management parameters:  
From the Host IP menu (Main > Configuration > System > Host IP), select  
an IP address of the IPmux-11 host.  
Configuring E1 and T1 at the Physical Level  
E1 and T1 interface must be configured at the physical level first.  
To configure E1 and T1 at the physical level:  
From the TDM Configuration menu (Configuration > Physical layer > TDM  
configuration), configure the necessary parameters of the E1 or T1 services.  
Configuring Bundle Connections  
The E1/T1 timeslots must be assigned to a bundle. The bundle must be sent to the  
remote IP address and be connected to one of the destination bundles.  
To assign timeslots to a bundle:  
From the DS0 Bundle Configuration menu (Main > Configuration >  
Connection > DS0 bundle configuration), assign desired timeslots to a  
bundle by setting them to 1.  
To connect a bundle:  
From the Bundle Connection Configuration menu (Main > Configuration >  
Connection > Bundle connection configuration), set the following:  
Destination IP address  
Destination bundle.  
Configuring the Internal Bridge  
To configure the Ethernet policy for the internal bridge ports:  
From the ETH Policy Configuration menu (Main > Configuration > Bridge >  
Bridge policy configuration), do the following:  
Specify bridge port operation mode  
Set default VLAN ID  
Set default VLAN priority  
Select rate limit for each port.  
To configure VLANs for the internal bridge ports:  
From the VLAN Table Configuration menu (Main > Configuration > Bridge  
> VLAN table configuration), assign VLANs for each bridge port, if necessary.  
2
Configuring IPmux-11  
IPmux-11 Ver. 2.00  
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Contents  
Chapter 1. Introduction  
1.1 Overview..................................................................................................................... 1-1  
Versions................................................................................................................................1-1  
Application...........................................................................................................................1-2  
Features................................................................................................................................1-2  
1.2 Physical Description..................................................................................................... 1-5  
1.3 Functional Description................................................................................................. 1-5  
Operation Modes .................................................................................................................1-5  
Timeslot Assignment in a Bundle...........................................................................................1-6  
Testing..................................................................................................................................1-6  
Timing Modes.......................................................................................................................1-6  
Network Timing Schemes .....................................................................................................1-7  
Frame Format.......................................................................................................................1-8  
Packet Delay Variation........................................................................................................1-11  
PDVT (Jitter) Buffer .............................................................................................................1-12  
Ethernet Throughput...........................................................................................................1-12  
Round Trip Delay ...............................................................................................................1-14  
Reorder and Duplication of Ethernet Frames.......................................................................1-14  
OAM Connectivity..............................................................................................................1-15  
End-to-End Alarm Generation .............................................................................................1-15  
Trail-Extended Mode ..........................................................................................................1-15  
VLAN Traffic Behavior ........................................................................................................1-16  
Ethernet Ports .....................................................................................................................1-16  
Chapter 2. Installation and Setup  
2.1 Introduction................................................................................................................. 2-1  
2.2 Site Requirements and Prerequisites ............................................................................ 2-1  
2.3 Package Contents ........................................................................................................ 2-2  
2.4 Connecting the Ethernet Equipment ............................................................................ 2-2  
Connecting the Ethernet Network Equipment........................................................................2-2  
Connecting the Ethernet User Equipment..............................................................................2-3  
2.5 Connecting to the E1/T1 Devices................................................................................. 2-3  
2.6 Connecting to the External Clock Source ..................................................................... 2-4  
2.7 Connecting to the ASCII Terminal................................................................................ 2-4  
2.8 Connecting IPmux-11 to Power................................................................................... 2-4  
Connecting AC Power...........................................................................................................2-5  
Connecting DC Power ..........................................................................................................2-5  
Chapter 3. Operation  
3.1 Turning IPmux-11 On.................................................................................................. 3-1  
3.2 Controls and Indicators................................................................................................ 3-1  
3.3 Default Settings............................................................................................................ 3-3  
3.4 Configuration Alternatives............................................................................................ 3-6  
Working with Terminal .........................................................................................................3-6  
Working with ConfiguRAD....................................................................................................3-8  
Overview of Menu Operations............................................................................................3-10  
IPmux-11 Ver. 2.00  
i
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Table of Contents  
Installation and Operation Manual  
Chapter 4. Configuration  
4.1 Configuration Sequence .............................................................................................. 4-1  
4.2 Configuring IPmux-11 for Management ....................................................................... 4-2  
Configuring IP Host Parameters.............................................................................................4-2  
Configuring Management Parameters....................................................................................4-4  
Configuring Control Port Parameters ...................................................................................4-10  
Configuring the System Clock..............................................................................................4-11  
Configuring IPmux-11 at the Physical Level .........................................................................4-13  
Configuring Bundle Connections.........................................................................................4-20  
Configuring the Ethernet Bridge ..........................................................................................4-24  
Displaying the IPmux-11 Inventory......................................................................................4-27  
Setting the Date and Time ..................................................................................................4-27  
Displaying the IPmux-11 Status...........................................................................................4-28  
Transferring Software and Configuration Files......................................................................4-31  
Resetting IPmux-11.............................................................................................................4-32  
Chapter 5. Configuring IPmux-11 for a Typical Application  
5.1 Overview..................................................................................................................... 5-1  
Application...........................................................................................................................5-1  
Guidelines for Configuring IPmux-11 Units............................................................................5-1  
5.2 Configuring IPmux-11 Units......................................................................................... 5-2  
Configuring the IP Parameters...............................................................................................5-2  
Configuring E1 Parameters at the Physical Layer ....................................................................5-3  
Configuring Bundles..............................................................................................................5-4  
Chapter 6. Troubleshooting and Diagnostics  
6.1 Monitoring Performance.............................................................................................. 6-1  
Displaying E1/T1 Statistics .....................................................................................................6-1  
Displaying LAN Statistics .......................................................................................................6-5  
Displaying Bundle Connection Statistics ................................................................................6-7  
Power-Up Self-Test.............................................................................................................6-10  
Using Front Panel LEDs.......................................................................................................6-11  
Working with the Event Log ................................................................................................6-11  
Masking Alarms...................................................................................................................6-15  
Running Loopbacks ............................................................................................................6-17  
Pinging IP Hosts..................................................................................................................6-20  
Running a Trace Route........................................................................................................6-21  
Appendix A. Connector Wiring  
Appendix B. Boot Sequence and Downloading Software  
Appendix C. SNMP Management  
ii  
IPmux-11 Ver. 2.00  
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Chapter 1  
Introduction  
1.1 Overview  
IPmux-11 offers a solution for extending traditional E1/T1 transparently over  
packet switched networks (PSNs) such as IP, Ethernet, and MPLS networks. The  
device converts the data stream coming from its TDM ports into configurable-sized  
packets that are extended over the Fast Ethernet network port, and vice versa.  
IPmux-11 offers end-to-end synchronization for voice/leased line applications.  
IPmux-11 also features two Fast Ethernet user ports for data (Ethernet) connectivity  
to the IP/Ethernet network. Management is performed locally by a terminal, or  
remotely via Web, Telnet, or SNMP.  
Versions  
IPmux-11 is available with different hardware configurations. The following  
versions are available:  
TDM interface options:  
E1 for balanced E1 interface  
E1CX for unbalanced E1 interface (via supplied adapter cable)  
T1 for T1 interface  
Network Ethernet interface options:  
UTP for 10/100BaseT interface, RJ-45 connector  
MM13LC for multimode 1310 nm - 100BaseFx interface, LC connector  
SM13LC for single mode 1310 nm - 100BaseFx interface, LC connector  
User Ethernet interface options:  
UTP for 10/100BaseT user interface, RJ-45 connector  
IPmux-11 Ver. 2.00  
Overview  
1-1  
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Chapter 1 Introduction  
Installation and Operation Manual  
Application  
Figure 1-1 illustrates a typical IPmux-11 multiplexing voice and Ethernet traffic over  
an IP link.  
Figure 1-1. Multiplexing Voice and Ethernet over a Packet-Switched Network  
Features  
E1 Interface  
The E1 port complies with G.703, G.704, and G.823 standards. The E1 port  
supports unframed, framed and multiframed operation with or without CRC-4.  
The E1 port supports long haul and short haul input signals and can be monitored  
for alarms and error statistics.  
T1 Interface  
The T1 port complies with ANSI T1.403, G.703, and G.704 standards. T1 jitter  
performance is according to G.824 and TR-62411. The T1 port supports  
unframed, SF, ESF and Robbed Bit signaling. The T1 port supports long haul and  
short haul input/output signals and can be monitored for alarms and error statistics.  
FDL and transmit performance monitoring for T1/ESF are also supported.  
Ethernet Interface  
IPmux-11 is available with three Ethernet ports (two user and one network port).  
The Ethernet ports work in the following switch modes:  
Transparent  
Tagged  
Untagged  
Double Tagged.  
Note  
Half-duplex operation in the IPmux-11 network port is not recommended when  
transmitting small-size packets, because collisions and backoffs cause large delay  
variation and may exceed the delay variation buffer tolerance at the receiving end,  
resulting in buffer underflows and errors.  
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IP  
The data stream coming from the E1 or T1 port is converted into IP packets that  
are transported over the Fast Ethernet ports, and vice versa.  
TDM bytes are encapsulated in a UDP frame that runs over IP and over Ethernet.  
The number of TDM bytes in an IP frame is configurable for throughput/delay  
tradeoff.  
Each device has a single IP address (host IP). A configurable destination IP address  
is assigned to the IP packets. IP ToS field support can be configured for IP level  
priority.  
The Ethernet ports can be either UTP or fiber.  
Fiber option – standard 100BaseFx full-duplex port (see Table 1-1).  
UTP option – A standard 10/100BaseT half/full duplex port with  
autonegotiation and automatic crossover support. If autonegotiation is  
disabled, Ethernet mode should be configured.  
Table 1-1. Fiber Optic Interface Options  
Wavelength Fiber Type Transmitter  
Type  
Power  
Receiver  
Sensitivity  
Loss  
Budget  
[dBm]  
[nm]  
[dBm]  
[dBm]  
[dB/km]  
[μm]  
Min Max  
Min Max  
1310  
1310  
62.5/125  
multimode  
LED  
-19  
-14  
-32  
-34  
1
4
10*  
16*  
9/125 single Laser  
mode  
-15  
-7  
0.5  
0.8  
* Permitted fiber optic cable length differs according to fiber characteristics,  
splices, and connectors.  
To calculate optical budget:  
Optical Budget [dB] =  
Receive SensitivityOptical Power–3 (Aging) – Connectors/Patch Panels Loss  
To calculate distance:  
Distance = Optical Budget/Maximum Loss  
MPLS  
IPmux-11 encapsulates TDM data with MPLS labels for transporting it over MPLS  
networks (TDMoMPLS). Saving up to 24 bytes of overhead in comparison to the  
standard TDMoIP encapsulation, TDMoMPLS is ideal for bandwidth-sensitive  
networks.  
TDMoIP Operation Modes  
E1/T1 operation modes are:  
Unframed E1/T1 over UDP over IP over Ethernet  
Fractional E1/T1 over UDP over IP over Ethernet  
Fractional E1/T1 with CAS over UDP over IP over Ethernet.  
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QoS  
QoS supports:  
Labeling IP level priority (ToS/Diffserv) for TDMoIP packets  
VLAN tagging and priority labeling according to IEEE 802.1p&Q for TDMoIP  
packets  
QoS marking of the TDMoIP traffic in MPLS networks.  
The user can configure the ToS (Type of Service) of the outgoing TDMoIP packets.  
This allows an en-route Layer 3 router or switch, which supports ToS, to give  
higher priority to IPmux-11 TDMoIP traffic for delay-sensitive and secure  
applications. IPmux-11 allows you to configure the WHOLE ToS byte field, since  
different vendors may use different bits to tag packets for traffic prioritization.  
This also enables operation according to various RFC definitions (for example RFC  
2474, RFC 791). The user can also configure VLAN priority bits for Level 2 Priority.  
Management  
IPmux-11 can be managed locally by connecting an ASCII terminal to the  
RS-232 port on the rear panel, or via an HTTP connection (Web-based  
management tool, ConfiguRAD), Telnet or SNMP. The SNMP management  
capability enables fully graphical, user-friendly management using the RADview  
Service Center TDMoIP network management stations offered by RAD, as well as  
management by other SNMP-based management systems.  
ConfiguRAD  
ConfiguRAD is user-friendly, Web-based terminal management system for remote  
device configuration and maintenance. It is embedded into IPmux-11 and  
provided at no extra cost. ConfiguRAD can be run from any standard Web  
browser.  
Timing  
IPmux-11 maintains synchronization between TDM devices by deploying  
advanced clock distribution mechanisms.  
Available timing modes are:  
Loopback  
Adaptive  
Internal clock  
External clock.  
System clock ensures clock resilience by using master and fallback timing sources  
for clock redundancy.  
IPmux-11 also provides system clock output via external clock connector.  
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1.2 Physical Description  
IPmux-11 is a compact easy-to-install standalone unit. Figure 1-2 shows a  
3-dimensional view of IPmux-11.  
Figure 1-2. IPmux-11 3D View  
The front panel includes the IPmux-11 LEDs. For the detailed LED description, see  
Chapter 3.  
User, network, external clock and management ports, and power supply  
connector are located on the rear panel of unit. For further details, see Chapter 2.  
1.3 Functional Description  
IPmux-11 provides TDM connectivity across the IP/Ethernet network. A single  
bundle (group of timeslots) can be transmitted to a predefined far-end bundle.  
IPmux-11 supports ICMP (ping), and generates ARP in case of unknown next hop  
MAC addresses, answers ARP requests, and supports the 802.3 VLAN Ethernet  
format.  
IPmux-11 includes E1 or T1 port. Traffic is transmitted over the network as E1/T1  
or fractional E1/T1, using the TDMoIP or TDMoMPLS method.  
IPmux-11 supports two Ethernet user ports for user LAN connectivity.  
Configuration and management are provided via the IPmux-11 local terminal,  
Web-based management utility, Telnet or RADview management tool (SNMP).  
Operation Modes  
This section describes the IPmux-11 operation modes, which are:  
Unframed E1/T1  
Fractional E1/T1  
Fractional E1/T1 with CAS.  
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Unframed  
In the unframed mode, the incoming bit stream from each channel (regardless of  
framing) is converted into IP over Ethernet frames. This option provides clear  
channel end-to-end service (unframed).  
Fractional  
In the fractional mode, the incoming bit stream is regarded as a sequence of  
N × 64 kbps timeslots (according to framing). Each predefined group of timeslots is  
converted into a structure block. The structure block is packetized into IP frames  
and transmitted.  
This mode allows transmission of several selected timeslots without the whole E1  
or T1 frame, as in transparent mode.  
Fractional with CAS  
In the fractional-with-CAS mode, the structure block (as described under  
Fractional Operation Modes, above) also includes Channel Associated Signaling  
(CAS) from timeslot 16 (E1) or robbed bit (T1). The relevant portion of the signaling  
channel is packetized and sent to the destination.  
Timeslot Assignment in a Bundle  
A bundle is a group of timeslots associated with a specific E1 or T1 channel.  
IPmux-11 places individual or multiple TDM timeslots (up to 31 timeslots for E1 or  
up to 24 for T1) into bundles with a single IP address destination.  
Testing  
Diagnostic capabilities include E1/T1 local and remote loopback tests for rapid  
localization of faults. The E1/T1 traffic can be looped locally, toward the line, or  
toward the remote end (see Chapter 6 for more information).  
Timing Modes  
The E1/T1 Tx clock can operate in several timing modes to provide maximum  
flexibility for connecting the IPmux-11 E1 or T1 channels.  
Each of the clocks must be configured correctly on both the receive and transmit  
ends to ensure proper operation and prevent slips (see Figure 1-3, Figure 1-4 and  
The E1/T1 available Tx modes are:  
Loopback timing – the E1/T1 Tx clock is derived from the E1/T1 receive (Rx)  
clock.  
Adaptive timing – in this mode, the E1 or T1 Tx clock is regenerated using the  
adaptive method. In this method, the fill level of the buffer receiving packets is  
monitored. If the buffer begins to overfill, the regenerated Tx clock frequency  
increases to avoid overflow. If the buffer begins to empty, the Tx clock  
frequency (toward the TDM device) decreases to avoid underflow.  
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Internal timing – in this mode, the Tx clock is derived from an internal  
oscillator.  
External timing – in this mode the Tx clock is derived from the external clock  
input. The external clock port also outputs the input clock signal to allow  
connection to other units, if needed.  
Note  
In adaptive timing the regenerated clock is subject to network packet delay  
variation. That is why the quality of the adaptive clock depends on the quality of the  
network.  
Network Timing Schemes  
The following paragraphs describe typical timing schemes and the correct timing  
mode settings for achieving end-to-end synchronization.  
External Network Timing  
When the edges of the network are synchronized by an external network clock  
source, all the IPmux-11 units should be configured to work in loopback timing  
mode (see Figure 1-3). This topology enables any-to-any connectivity.  
Figure 1-3. IPmux-11 in Loopback Timing Mode  
External timing from the network can also be issued to IPmux-11 by external clock  
input.  
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Figure 1-4. IPmux-11 in External Clock Mode  
Single Source Clock Network  
When a common clock is not available on all the ends of the network, one of the  
IPmux-11 devices is configured to work in loopback timing, while the other  
IPmux-11device is configured to work in adaptive timing (see Figure 1-5).  
Figure 1-5. IPmux-11 in Adaptive Timing Mode  
Frame Format  
TDMoIP  
The Ethernet frame sent by IPmux-11 is a UDP datagram that transfers E1/T1  
payload bytes over IP over Ethernet (UDP payload + UDP header + IP header +  
Ethernet header). The UDP payload is equal to TDM bytes per frame  
(TDM bytes/frame configuration). Table 1-2 specifies the structure of the different  
headers, special fields, and the payload in the Ethernet packet.  
CRC  
TDM Payload  
CW  
UDP  
IP  
ETH  
Figure 1-6. TDMoIP Frame Structure  
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Table 1-2. TDMoIP Frame Structure  
Field Length (Bytes)  
Field  
7
Preamble  
1
SFD  
ETH  
Layer  
6
6
Destination MAC Address  
Source MAC Address  
Note: IEEE 802.1p&Q VLAN  
Tagging (additional 4 bytes if  
enabled)  
LLC  
Layer  
2
1
1
2
2
1
1
1
1
2
4
4
2
2
2
2
Type  
Vers/HLEN  
Service Type  
Total Length  
Identification  
Flags/Fragment Offset (most)  
Fragment Offset (least)  
Time to Live  
IP Layer  
Protocol  
Header Checksum  
Source IP Address  
Destination IP Address  
UDP Source Port  
UDP Destination Port  
UDP Message Length  
UDP Checksum  
The UDP source port field is  
used to transfer a destination  
bundle number. See Note  
below.  
UDP  
Layer  
Data  
Layer  
...  
4
Payload  
CRC  
ETH  
Layer  
The UDP Source Port value calculation depends on the selected TDMoIP version  
(1 or 2):  
Note  
TDMoIP version 2: The UDP Source Port value equals 0x2000 + Destination  
Bundle Number, it is always greater than 8192.  
TDMoIP version 1:  
During normal operation the UDP Source Port value equals Destination  
Bundle Number + 1 (for example, for bundle 1 the UDP Source Port equals  
2). The allowed range for the UDP Source Port values in the normal state is  
from 0 to 8191.  
If a bundle is in the local fail state, the MSB of the UDP Source Port is set to  
1 to indicate the local fail state to the remote equipment. In this case the  
UDP Source Port value equals 0x8000 + Destination Bundle Number + 1.  
The UDP Source Port value in the local fail state is always greater than  
32768.  
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VLAN Support  
VLAN, according to IEEE 802.1p&Q, adds four bytes to the MAC layer of the  
Ethernet frame. The user can set the contents of these bytes, MAC layer priority  
and VLAN ID. In this mode, only VLAN format frames are sent and received by  
IPmux-11. Figure 1-7 shows the VLAN tag format.  
user_priority  
VID  
81  
00  
8
6
5
4
1
8
1
802.1D Tag Protocol Type  
Priority  
VLAN ID  
Figure 1-7. VLAN Tag Format (802.1p&Q)  
UDP Support  
Table 1-3. UDP Ports Definition  
Field Length (Bits) Field Description  
Value  
2–497d* Destination timeslots bundle  
UDP Destination Port 2142d Standard TDMoIP UDP port  
Function  
2 bytes  
2 bytes  
UDP Source Port  
* The MSB of this field can be either 1 or 0 for inband end-to-end proprietary signaling.  
The UDP Source Port field is used for destination timeslots bundle indication.  
For more information about VLAN tagging, refer to IEEE standard 802.1p&Q.  
Note  
TDMoMPLS  
Figure 1-9 and Table 1-4 illustrate TDMoMPLS frame structure.  
CRC  
TDM Payload  
CW  
MPLS  
ETH  
Figure 1-8. TDMoMPLS Frame Structure  
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Table 1-4. TDMoMPLS Frame Structure  
Field Length (Bytes)  
Field  
7
Preamble  
1
SFD  
ETH  
Layer  
6
Destination MAC Address  
6
Source MAC Address  
Type  
Note: IEEE 802.1p&Q VLAN  
Tagging (additional 4 bytes if  
enabled)  
2
LLC  
Layer  
20  
3
Outer label  
EXP  
1
Stacking bit  
TTL  
8
MPLS  
Layer  
The inner label field is used to  
transfer a destination bundle  
number.  
20  
3
Inner label  
EXP  
1
Stacking bit  
TTL  
8
Data  
Layer  
...  
Payload  
CRC  
ETH  
Layer  
4
Packet Delay Variation  
Packets are transmitted at set intervals. Packet Delay Variation is the maximum  
deviation from the nominal time the packets are expected to arrive at the far end  
device. IPmux-11 has a buffer that compensates for the deviation from the  
expected packet arrival time to prevent IPmux-11 buffers from emptying out or  
overflowing.  
Packet Delay Variation is an important network parameter. Large PDV (exceeding  
the jitter buffer configuration) will cause receive buffer underflows and errors at  
the TDM level (see Figure 1-9).  
To compensate for large PDV, configure the PDVT (jitter) buffer to a higher value.  
Packets Leaving IPmux-11  
t
t
Packets Arriving  
PDV  
Figure 1-9. Packet Delay Variation  
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PDVT (Jitter) Buffer  
IPmux-11 is equipped with a Packet DVT (Delay Variation Tolerance) buffer. The  
PDVT buffer or jitter buffer is filled by the incoming IP packets and emptied out to  
fill the TDM stream. The buffer begins to empty out only after it is half full in order  
to compensate for packet starvation from the Ethernet side. The time it takes for  
half of the buffer to empty out is the maximum DVT time. The PDVT (jitter) buffer  
is designed to compensate for packet delay variation caused by the network +  
packetization delay. It supports a delay variation of up to 300 ms for E1 or T1.  
PDVT Buffer Effect on Delay  
The PDVT buffer is on the TDM path; it adds to the total end-to-end delay (see  
delay calculation, below).  
Packetization Delay  
When IPmux-11 builds a frame, a packetization delay is introduced. The  
packetization delay is calculated according to the following formula:  
47 ×N ×0.125  
Packetization delay (ms) =  
TS  
Where:  
TDM bytes/frame  
N =  
48  
TS = number of assigned timeslots (in unframed mode= 32 for E1, 24 for T1)  
Jitter Buffer Depth  
The jitter buffer depth is configured according to the following formula:  
Jitter buffer = PDV introduced by the network (measured or estimated) +  
packetization delay.  
Note  
For a bundle that contains a few timeslots (i.e. 1 to 3,) the recommended number  
of TDM bytes/frame is 48 in order to prevent excessive packetization delay.  
Ethernet Throughput  
Increasing payload size reduces the ratio of the TDMoIP header segment in the  
packet, thus reducing the total Ethernet throughput.  
Increased payload reduces the IP/Ethernet overhead segment of the total packet  
and thus can reduce the total Ethernet throughput.  
On the other hand, packetization delay is increased; this contributes to a higher  
end-to-end delay. This effect can be small and negligible when a full E1 (or many  
timeslots) are transferred, but can be very significant when few timeslots are  
transferred. In this case, when configuring a large value of TDM bytes/frame, the  
packetization delay can be very large and may exceed the maximum PDVT (jitter)  
buffer on the receiving end.  
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Configuring the TDM bytes per frame (TDM bytes/frame) parameter has impact on  
the Ethernet throughput (bandwidth or traffic traveling through the Ethernet). This  
parameter controls the number of TDM bytes encapsulated in one frame.  
The TDM bytes/frame parameter can be configured to N × 48 bytes where N is an  
integer between 1 and 30.  
To calculate Ethernet throughput as a function of TDM bytes/frame:  
Ethernet load (bps) = [(frame overhead (bytes) + TDM bytes/frame) × 8] ×  
frames/second  
Frame overhead = Ethernet overhead + IP overhead = 46 bytes  
Note  
The frame overhead does not include:  
Preamble field: 7 bytes  
SFD field: 1 byte  
Interframe gap: 12 bytes  
VLAN field (when used): 4 bytes.  
Frame/second =  
Unframed:  
5447/n for a full E1  
4107/n for a full T1  
Framed:  
8000 × k/(46.875 x n)  
Where k = number of assigned timeslots  
TDM bytes/frame  
Where n =  
48  
The maximum Ethernet throughput mode is calculated by:  
Unframed  
data  
8000* TS  
47*n  
647 48  
(VLAN + frame overhead + payload)*  
*8bits  
14444444244444443  
frame size  
Framed  
pointer  
CAS  
647 48  
647 48  
data  
8000* TS +  
647 48  
8000*TS  
(47 *8)- 1  
47*n  
TS  
+ 500*  
2
(VLAN + frame overhead + payload)*  
*8bits  
14444444244444443  
frame size  
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Where:  
VLAN is an optional field: if enabled it adds 4 bytes to the frame overhead  
payload = number of TDM bytes in frame, (48, 96, 144, 192, … 1440)  
frame overhead = size of 46 bytes, include MAC, LLC, IP and UDP layer  
CAS is signaling (framed mode only)  
TS is number of assigned timeslots.  
The result in both the equations is in bits per second (bps).  
Round Trip Delay  
The voice path round-trip delay is a function of all connections and network  
parameters.  
47×N  
(±2 msec) RTDelay(msec) = 2 × [  
× 0.125 msec + PDVT buffer msec +1 msec] +  
NTS  
network round trip delay  
Where  
TDMbytes/frame  
N =  
48  
NTS = number of assigned timeslots (in unframed mode= 32 for E1, 24 for T1)  
Reorder and Duplication of Ethernet Frames  
IPmux-11 handles situations in the IP network where:  
Packets are reordered by the network  
Packets are duplicated.  
Reordering Frames  
The ability to correct problems of reordering depends on the selected payload  
(TDMoIP) format: version 1 (V1) or version 2 (V2).  
Frame reordering is supported for odd values of payload, i.e. 1, 3, 5, 7, …, 29 in  
V1 mode or for any payload in V2 mode.  
You can reorder up to seven frames for V1 and up to 64 frames for V2; the  
number depends on the number of TDM bytes/frame size and buffer size.  
The number of frames that can be reordered is calculated by:  
(Jitter Buffer[msec]1)(Ts ×8)  
47×Payload  
Where:  
Ts = number of timeslots  
Payload = number of TDM bytes in frame, i.e. 1, 3, 5, 7, …, 29 for V1 or  
1, 2, 3, …, 29 for V2.  
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Note  
For V1 the maximum number of frames that can be reordered is 7, even if the  
calculation result exceeds 7. For V2 the maximum number of frames that can be  
reordered is 64, even if the calculation result exceeds 64.  
Duplicated Frames  
When frames are duplicated, IPmux-11 only uses the later frame.  
OAM Connectivity  
When a destination IPmux-11 is lost, the traffic load that is transmitted to that  
IPmux is significantly decreased (several packets per second per connection). The  
IPmux starts transmitting at full rate only when it detects an IPmux at the remote  
side.  
OAM connectivity is used to detect a valid connection (the remote IPmux will  
confirm it recognizes the connection and that it is enabled). It prevents flooding by  
a handshake.  
The control packets are run over a unique bundle number that is used for this  
purpose. The control packets have the same VLAN ID and TOS of the originating  
connection. The control packet uses the TDMoIP UDP number.  
OAM connectivity can be set to Disable/Enable.  
Note  
For control packets, the UDP checksum is not calculated nor checked.  
End-to-End Alarm Generation  
An end-to-end alarm generation mechanism exists in IPmux-11 to facilitate the  
following alarms:  
Unframed – AIS is transmitted toward the near-end PBX in event of:  
Far-end LOS, AIS  
PDVT underflow/overflow.  
Framed – Timeslot/CAS configurable alarm pattern is transmitted toward the  
near-end PBX in event of:  
Far-end LOS, LOF, AIS  
PDVT underflow/overflow.  
Trail-Extended Mode  
To enhance fault condition reporting capabilities, remote IPmux-11 transfers RDI,  
LOS and AIS conditions received from the remote E1 device to the local E1 device  
(see Figure 1-10).  
Figure 1-10. Fault Indication Transfer  
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IPmux-11 transfers fault conditions only if the payload format is configured to V2.  
The fault conditions are transferred as follows:  
Framed E1 or T1: RDI as RDI, LOS and AIS as AIS  
Unframed E1 or T1: LOS and AIS as AIS.  
VLAN Traffic Behavior  
Table 1-5 lists the IP and VLAN validity checks that are performed with each  
Ethernet packet that is received by IPmux-11.  
Table 1-5. VLAN Check for Packets that are Received by IPmux-11  
Packet Type  
Management  
TDM over IP  
Source IP Check  
Performed  
VLAN Check  
Performed  
Performed  
Performed  
Receiving ping  
ARP  
Not performed  
Not performed  
Not performed, even if it is one of  
the IPs that is configured for the  
manager or for the connection  
Telnet  
Performed only when Telnet access mark is  
from manager  
Performed only when Telnet access  
mark is from manager  
Table 1-6 lists the IP and VLAN validity checks that are performed with each  
Ethernet packet that is sent by IPmux-11.  
Table 1-6. VLAN Check for Packets Sent by IPmux-11  
Packet Type  
Management  
TDM over IP  
VLAN Support  
As configured for the manager  
As configured for the connection  
Answer to ping  
Packet with VLAN tagging: IPmux-11 replies with the same VLAN ID (even  
if it is s one of IPs configured for the manager or for the connection).  
Packet without VLAN tagging: if it is one of the IPs configured for the  
manager or for the connection, the IPmux-11 replies with the VLAN ID  
that is in the manager or connection configuration.  
ARP initiated by IPmux-11  
Telnet  
No VLAN value unless it is to one of the managers or the connection’s IP  
address  
Ping initiated by IPmux-11  
Ethernet Ports  
The Ethernet user ports allow a user to aggregate both TDMoIP traffic and his  
private network LAN traffic to a single Ethernet network connection without  
requiring an access switch. This is a cost-effective solution for MTU or small-office  
applications. A rate limiter to restrict user port traffic is supported.  
IPmux-11 contains an internal bridge where one of its ports is connected to a  
TDMoIP interworking function, two external bridge ports is used as the user ports,  
and the fourth is used as an Ethernet network port.  
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Ethernet  
User Port 1  
Ethernet  
Network Port  
Internal  
Switch  
Ethernet  
User Port 2  
TDMoIP  
E1 or T1 Port  
Figure 1-11. IPmux-11 with Two Ethernet User Port  
Note  
Priority is always given to TDMoIP packets inside the internal switch.  
Switch Operation Modes  
IPmux-11 offers two user LAN ports in addition to the LAN port on the network  
side. The device performs switching at Layer 2. The switch supports both  
transparent bridging and VLAN-aware bridging. The switch supports rate limiting of  
traffic going from the user ports to the network port. It supports up to 1024 MAC  
addresses (depending on their values and the order in which they are learned).  
The switch modes are described later in this section. They are:  
Transparent  
Untagged  
Tagged  
Double tagged.  
Rate Limiter Option  
In this option a rate limiter is available to limit user port traffic. This feature is  
valuable when a limited bandwidth is used to extend the Ethernet link (generally  
when the Ethernet link rate is limited/shaped to a lower rate after IPmux). In this  
case TDMoIP packets will be dropped by a lower-rate device even if it was  
prioritized at the IPmux internal switch. This is prevented by limiting the user port  
to actual link rate minus TDMoIP bandwidth.  
Network and user traffic can be limited to the following data rates:  
Network interface (egress) – 256 kbps, 512 kbps, 1 Mbps, 2 Mbps, 4 Mbps, 5  
Mbps, 8 Mbps, 10 Mbps, 16 Mbps, 20 Mbps, 25 Mbps, 40 Mbps, 50 Mbps,  
80 Mbps  
User interface (ingress) – 256 kbps, 512 kbps, 1 Mbps, 2 Mbps, 4 Mbps,  
8 Mbps, 16 Mbps, 32 Mbps, 64 Mbps  
When the rate limiter is disabled, there is automatic per-port limiting of 64 Mbps  
on every port, for protection against broadcast, multicast, and flooding, which  
could otherwise saturate the channel. If the default VLAN priority is lowered, then  
this automatic limit is lowered accordingly, to maintain this protection. Setting the  
default VLAN priority changes the automatic rate limiting in the following manner:  
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Table 1-7. Automatic Per-Port Rate Limiting  
Default VLAN Priority  
Automatic Rate Limiting  
64 Mbps  
4 - 7  
2 - 3  
0 - 1  
32 Mbps  
16 Mbps  
Table 1-8 illustrates relations between rate limiting and VLAN tagging modes.  
Table 1-8. Rate Limiting and VLAN Tagging Modes  
Rate  
Enabled  
Disabled  
Limiting  
VLAN Tagging  
Transparent, Untagged  
Frame priority is determined by the Frame priority is determined by the  
default priority of the port. The  
optional values are 0–7.  
default priority of the port. The  
optional values are 0–7.  
In order to assign highest priority to In order to assign highest priority to  
the TDM traffic, it is necessary to  
configure default priority of the  
appropriate port to 6 or 7. For all  
the other ports, default priority can  
be configured to any value in the  
the TDM traffic, it is necessary to  
configure default priority of the  
appropriate port to 6 or 7. For all  
the other ports, default priority can  
be configured to any value in the  
range of 0–5, depending on the rate range of 0–5.  
limiting setting.  
Frame priority is determined by the Frame priority is determined by the  
Tagged  
default priority of the port. The  
optional values are 0–7.  
tag priority of the frame. In order to  
assign highest priority to the TDM  
In order to assign highest priority to traffic, it is necessary to configure  
the TDM traffic, it is necessary to  
configure default priority of the  
appropriate port to 6 or 7. For all  
the other ports, default priority can  
be configured to any value in the  
tag priority of the TDM frame to 6  
or 7. For all the other frames, tag  
priority can be configured to any  
value in the range of 0–5. If an  
untagged frame is received, its  
range of 0–5, depending on the rate priority is determined by the default  
limiting setting.  
priority of the port.  
Frame priority is determined by the For the frames coming from the  
Double Tagged  
default priority of the port. If the  
TDM traffic is tagged, in order to  
assign highest priority to it, it is  
necessary to set the frame tag  
priority to 6 or 7.  
user ports towards the network  
port, priority is determined by the  
default priority of the port.  
For frames coming from the  
network port towards the user  
ports, priority is determined by the  
tag priority of the frame.  
If TDM traffic is tagged, in order to  
assign highest priority to it, it is  
necessary to set the frame tag  
priority to 6 or 7.  
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Chapter 1 Introduction  
Switch Behavior When Handling User and Network Traffic  
The way the network and user ports handle the traffic depends on the selected  
port mode (transparent, untagged, tagged or double tagged) and frame type  
(untagged, tagged or double tagged). Table 1-9 lists all operation modes of the  
network and user ports. The modes are explained in greater detail in Table 1-10,  
Table 1-9. Switch Behavior (User and Network Traffic)  
Network  
Transparent  
Untagged  
Tagged  
Double Tagged  
User  
Mode A  
Mode B  
Mode C  
Not applicable  
Not applicable  
Not applicable  
Not applicable  
Transparent  
Untagged  
Mode B  
Mode C  
Mode G  
Mode D  
Mode E  
Mode E  
Mode F  
Tagged  
Not implemented  
Not implemented  
Double Tagged  
Table 1-10. Mode A  
Ingress  
Egress  
If a tagged frame enters a transparent port, it is  
switched to the other transparent port  
The transparent port transmits the frame unmodified  
(tagged)  
If an untagged frame enters a transparent port, it The transparent port transmits the frame unmodified  
is switched to the other transparent port  
(untagged)  
Table 1-11. Mode B  
Ingress  
Egress  
If a tagged frame enters the transparent port, it  
is switched to the untagged port  
The untagged port removes the tag, and transmits the  
frame untagged  
If a tagged frame enters the untagged port, it is  
switched to the transparent port  
The transparent port transmits the frame unmodified  
(tagged)  
If an untagged frame enters the transparent port, The untagged port transmits the frame unmodified  
it is switched to the untagged port  
(untagged)  
If a untagged frame enters the untagged port, it  
is switched to the transparent port  
The transparent port transmits the frame unmodified  
(untagged)  
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Table 1-12. Mode C  
Ingress  
Egress  
If a tagged frame enters the transparent port, it  
is switched to the tagged port  
If the tagged port is not a member of the frame’s VID,  
the frame is discarded  
The tagged port is a member of the frame’s VID, the  
frame is transmitted unmodified (tagged)  
The transparent port transmits the frame unmodified  
(tagged)  
If a tagged frame enters the tagged port,  
which is not a member of its VID, the frame  
is discarded  
If a tagged frame enters the tagged port,  
which is a member of its VID, the frame is  
switched to all other members  
If an untagged frame enters the transparent port,  
it is switched to the tagged port  
If the tagged port is not a member of the transparent  
port default VID, the frame is discarded  
If the tagged port is a member of the transparent port  
default VID, it adds tag (VID is the transparent port  
default VID and PRI is the transparent port default  
PRI), and transmits the frame tagged  
The transparent port transmits the frame unmodified  
(untagged).  
If an untagged frame enters the tagged port,  
which is not a member of its default VID, the  
frame is discarded  
If an untagged frame enters the tagged port,  
which is a member of its VID, the frame is  
switched to all other members  
Table 1-13. Mode D  
Ingress  
Egress  
If a tagged frame enters an untagged port, it is  
switched to the other untagged port  
The untagged port removes the tag, andtransmits the  
frame untagged  
If an untagged frame enters an untagged port, it The untagged port transmits the frame unmodified  
is switched to the other transparent port (untagged)  
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Table 1-14. Mode E  
Ingress  
Egress  
If a tagged frame enters the untagged port, it is  
switched to the tagged port  
If the tagged port is not a member of the frame VID, the  
frame is discarded  
If the tagged port is a member of the frame VID, the  
frame is transmitted unmodified (tagged)  
The untagged port removes the tag and transmits the  
frame untagged  
If a tagged frame enters the tagged port,  
which is not a member of its VID, the frame  
is discarded  
If a tagged frame enters the tagged port,  
which is a member of its VID, the frame is  
switched to all other members  
If an untagged frame enters the untagged port, it  
is switched to the tagged port  
If the tagged port is not a member of the untagged  
port default VID, the frame is discarded  
If the tagged port is a member of the untagged port  
default VID, the tagged port adds tag (VID is the  
untagged port default VID and PRI is the untagged  
port default PRI), and transmits the frame tagged  
If an untagged frame enters the tagged port,  
which is not a member of its default VID, the  
frame is discarded  
The untagged port transmits the frame unmodified  
(untagged)  
If an untagged frame enters the tagged port,  
which is a member of its default VID, the frame  
switched to all other members  
Table 1-15. Mode F  
Ingress  
Egress  
The tagged port transmits the frame unmodified (tagged.)  
If a tagged frame enters the tagged port,  
which is not a member of the frame VID, the  
frame is discarded  
If a tagged frame enters the tagged port,  
which is a member of the frame VID, the  
frame is switched to all other members  
The tagged port adds tag (VID is the ingress tagged port  
default VID and PRI is the ingress tagged port default  
PRI), and transmits the frame tagged  
If an untagged frame enters the tagged port,  
which is not a member of its default VID, the  
frame is discarded  
If an untagged frame enters the tagged port,  
which is a member of its default VID, the  
frame is switched to all other members  
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Table 1-16. Mode G  
Ingress  
Egress  
If a double-tagged frame enters the transparent  
port, it is switched to the double-tagged port  
If the double-tagged port is not a member of the first  
VID of the frame, the frame is discarded  
If the double-tagged port is a member of the first VID  
of the frame, it removes the firs tag and transmits the  
frame tagged.  
If a tagged frame enters the transparent port, it  
is switched to the double-tagged port  
If the double-tagged port is not a member of the  
frame VID, the frame is discarded  
If the double-tagged port is a member of the frame  
VID, it removes the tag and transmits the frame  
untagged  
If an untagged frame enters the transparent port,  
the frame is discarded  
If a tagged frame enters the double-tagged port, The transparent port transmits the frame unmodified  
the port adds tag (VID is the double-tagged port (double tagged)  
default VID and PRI is the double-tagged port  
default PRI), and switches the frame to the  
transparent port  
If an untagged frame enters the double-tagged  
The transparent port transmits the frame unmodified  
port, the port adds tag (VID is the double-tagged (tagged)  
port default VID and PRI is the double-tagged  
port default PRI), and switches the frame to the  
transparent port  
Note  
When operating in the Mode G, the following rules apply:  
No VLANs can be created on the network port.  
Each user port has to be a member of its default VLAN ID, no other VLANs are  
valid.  
Both user ports can get the same default VLAN ID.  
In either case, no traffic is allowed between two user ports.  
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Switch Behavior When Handling Management Traffic  
Table 1-17 lists operation modes of the network port when handling the  
management traffic.  
Table 1-17. Switch Behavior (Management Traffic)  
Port  
Transparent  
Untagged  
Tagged  
Double-Tagged  
Option  
No limitations  
Not applicable  
Port must be a  
member of  
Not applicable  
Manager Tagged  
manager VID  
No limitations  
No limitations  
No limitations  
Not applicable  
Not applicable  
Not applicable  
Manager  
Untagged  
Network port must Not applicable  
be member of  
TDMoIP Tagged  
TDMoIP VID  
No limitations  
No limitations  
No limitations  
No limitations  
Not applicable  
Not applicable  
Not applicable  
TDMoIP Untagged  
Port must be a  
member of ping  
VID  
Ping Tagged  
(Initiated by  
IPmux-11)  
No limitations  
No limitations  
No limitations  
No limitations  
Not applicable  
Not applicable  
Not applicable  
Ping Untagged  
(Initiated by  
IPmux-11)  
Port must a  
member of  
ping/ARP VID  
Ping/ARP Tagged  
(Not Initiated by  
IPmux-11,  
Manager or  
TDMoIP VID)  
No limitations  
No limitations  
Not applicable  
Not applicable  
Ping/ARP  
Untagged  
(Not Initiated by  
IPmux-11,  
Manager or  
TDMoIP VID)  
No limitations  
No limitations  
Telnet source port  
must not be tagged member of Telnet  
source port VID  
Port must be a  
Not applicable  
Not applicable  
Telnet Access  
Enable  
According to  
Manager options  
According to  
Manager options  
Telnet Access  
Managers  
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1.4 Technical Specifications  
Compliance  
ITU-T Rec. G.703, G.704, G.706, G.732, G.823  
E1 Interface  
Data Rate  
2.048 Mbps  
Line Code  
Framing  
HDB3  
Unframed, framed, multiframe; with or without CRC-4  
CAS, CCS (transparent)  
Signaling  
Line Impedance  
Signal Levels  
120Ω, balanced; 75Ω, unbalanced  
Receive: 0 to -36 dB with LTU (long haul)  
0 to -10 dB without LTU (short haul)  
Transmit pulse amplitude, balanced: ±3V ±10%  
Transmit pulse amplitude, unbalanced: ±2.37V ±10%  
Jitter Performance  
Connector  
As per ITU-T G.823  
Balanced: RJ-45  
Unbalanced: Two BNC coax (via an adapter cable)  
Compliance  
ANSI T1.403, AT&T TR-62411, ITU-T Rec. G.703, G.704,  
G.824  
T1 Interface  
Data Rate  
1.544 Mbps  
Line Code  
Framing  
B8ZS, B7ZS, AMI  
Unframed, SF, ESF  
CAS (robbed bit), CCS (transparent)  
100Ω, balanced  
Signaling  
Line Impedance  
Signal Levels  
Receive: 0 to -36 dB  
Transmit pulse amplitude: ±3V ±20%; 0 dB, -7.5 dB,  
-15 dB (CSU), user-selectable  
±2.7V ±10%, 0 to 655 feet, (DSU), user-selectable  
As per AT&T TR-62411, G.824  
RJ-45  
Jitter Performance  
Connector  
Compliance  
IEEE 802.3, 802.3u, 802.1p&Q  
Ethernet  
Interface  
Number of Ports  
Data Rate  
Network: 1 (copper or fiber)  
User: up to 2 (copper only)  
UTP: 10 Mbps or 100 Mbps, full or half-duplex  
Fiber: 100 Mbps full-duplex  
Frame Size  
1536 bytes max (user port)  
Fiber Optic  
Specifications  
Connector  
LC, SFF-based  
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Transmit  
Internal  
Timing  
External input or output via dedicated connector:  
E1/T1 or 2048/1544 kHz squarewave (RS-485  
electrical levels)  
Loopback  
Adaptive  
Number of  
Connections  
1
Pseudowire  
Connections  
Jitter Buffer Size  
3–300 msec with 1 msec granularity  
SNMPv1  
Methods  
Management  
Telnet  
RADview Service Center TDMoIP (ordered separately)  
ASCII terminal via V.24 (RS-232) DCE port  
Loopbacks  
E1/T1 local loopback  
Diagnostics  
Statistics  
E1/T1 remote loopback  
T1 Facility Type 1 (FAC1) in-band remote loopback  
As per G.826 and RFC 2495  
As per RFC 2819  
E1/T1  
Ethernet  
Receive Buffer  
Indication  
Overflow, underflow, sequence error  
General  
PWR (green) – Power status  
Indicators  
ALM (red/yellow) – Alarm status  
EXT CLK (red/green) – External clock status  
E1 SYNC (red/green) – E1 synchronization  
T1 SYNC (red/green) – T1 synchronization  
LINK/ACT (green) – Link/activity status  
100–240 VAC or -40/-60 VDC  
8W max  
E1  
T1  
Ethernet  
AC/DC Source  
Power  
Power  
Consumption  
Height  
43.7 mm (1.72 in)  
217 mm (8.55 in)  
Physical  
Width  
Depth  
170 mm (6.7 in)  
Weight  
0.5 kg (1.1 lb)  
Temperature  
Humidity  
0°C to 50°C (32°C to 122°F)  
Up to 90%, non-condensing  
Environment  
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Chapter 2  
Installation and Setup  
2.1 Introduction  
This chapter describes installation and setup procedures for the IPmux-11 unit.  
After installing the unit, refer to Chapter 3 for the operating instructions.  
If a problem is encountered, refer to Chapter 6 for test and diagnostic instructions.  
Internal settings, adjustment, maintenance, and repairs may be performed  
only by a skilled technician who is aware of the hazards involved.  
Always observe standard safety precautions during installation, operation, and  
maintenance of this product.  
Warning  
2.2 Site Requirements and Prerequisites  
The IPmux-11 device is intended for installation on desktop, 19-inch racks and  
walls. All the connections are made at the rear panel. A hardware kit (RM-33-2) for  
mounting one or two IPmux-11 units into a 19-inch rack is available from RAD.  
Drilling template for wall installation is provided at the end of the manual.  
AC-powered IPmux-11 units should be installed within 1.5m (5 ft) of an  
easily-accessible grounded AC outlet capable of furnishing the voltage in  
accordance with IPmux-11 nominal supply voltage.  
DC-powered IPmux-11 units require a -48 VDC power source, which must be  
adequately isolated from the main supply.  
Allow at least 90 cm (36 in) of frontal clearance for operating and maintenance  
accessibility. Allow at least 10 cm (4 in) clearance at the rear of the unit for signal  
lines and interface cables.  
The ambient operating temperature of IPmux-11 should be 0 to 50°C (32 to  
122°F), at a relative humidity of up to 90%, non-condensing.  
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2.3 Package Contents  
The IPmux-11 package includes the following items:  
One IPmux-11 unit  
Power cord  
IEC 60320 AC/DC adapter plug  
CBL-DB9F-DB9M-STR control port cable (if ordered)  
CBL-RJ45/2BNC/E1/X adapter cable for unbalanced E1 interface (if ordered)  
RM-33-2 rack mount kit (if ordered).  
2.4 Connecting the Ethernet Equipment  
IPmux-11 is connected to the Ethernet network equipment via the fiber optic LC  
or 8-pin RJ-45 electrical port designated ETH 1. Connection to the Ethernet user  
equipment is made via two 8-pin RJ-45 electrical ports designated ETH 2 and  
ETH 3. Refer to Appendix A for the RJ-45 connector pinout.  
Connecting the Ethernet Network Equipment  
Figure 2-1 and Figure 2-2 illustrate typical rear panels of the IPmux-11 unit with  
fiber optic LC and electrical RJ-45 network connectors, respectively.  
To connect to the Ethernet network equipment with fiber optic interface:  
Connect IPmux-11 to the Ethernet network equipment using a standard fiber  
optic cable terminated with an LC connector.  
ETH  
2
EXT CLK  
1
3
E1  
CONTROL  
SET  
DEF  
Figure 2-1. ETH 1 Fiber Optic Connector  
To connect to the Ethernet network equipment with a copper interface:  
Connect IPmux-11 to the Ethernet network equipment using a standard  
straight UTP cable terminated with an RJ-45 connector.  
ETH  
2
EXT CLK  
1
3
E1  
CONTROL  
SET  
DEF  
Figure 2-2. ETH 1 Electrical Connector  
2-2  
Connecting the Ethernet Equipment  
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Connecting the Ethernet User Equipment  
Figure 2-3 illustrates a rear panel of the IPmux-11 unit with two user LAN ports.  
ETH  
2
EXT CLK  
1
3
E1  
CONTROL  
SET  
DEF  
Figure 2-3. ETH 2 and ETH 3 Connectors  
To connect to the Ethernet user equipment:  
Connect IPmux-11 to the Ethernet user equipment using a standard straight  
UTP cable terminated with an RJ-45 connector.  
2.5 Connecting to the E1/T1 Devices  
E1/T1 devices are connected to IPmux-11 via one balanced RJ-45 port designated  
E1/T1. Unbalanced E1 interface is provided via CBL-RJ45/2BNC/E1/X adapter  
cable (see Appendix A for the connector pinouts and cable wiring diagram).  
Caution  
When connecting balanced E1 or T1 equipment, make sure to use only 4-wire  
RJ-45 connectors with the following pins used for receiving and transmitting data:  
1, 2, 4, 5. Do not use 8-pin RJ-45 connectors.  
ETH  
2
EXT CLK  
1
3
E1  
CONTROL  
SET  
DEF  
Figure 2-4. E1/T1 Connector  
To connect to the E1/T1 devices with balanced interfaces:  
Connect IPmux-11 to the E1/T1 devices using standard straight E1/T1 cables.  
To connect to the E1 devices with unbalanced interfaces:  
1. Connect the RJ-45 connector of the adapter cable to the IPmux-11 balanced RJ-45  
ports designated E1.  
2. Connect the transmit cable to the red coaxial connector of the adapter cable  
marked .  
3. Connect the receive cable to the green coaxial connector of the adapter cable  
marked .  
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2.6 Connecting to the External Clock Source  
IPmux-11 is connected to the external clock source via a balanced RJ-45  
connector designated EXT CLK. Refer to Appendix A for the connector pinout.  
ETH  
2
EXT CLK  
1
3
E1  
CONTROL  
SET  
DEF  
Figure 2-5. EXT CLK Connector  
To connect to the external clock source:  
Connect IPmux-11 to the external E1 or T1 clock source using an appropriate  
cable.  
2.7 Connecting to the ASCII Terminal  
IPmux-11 is connected to an ASCII terminal via a 9-pin D-type female connector  
designated CONTROL. Refer to Appendix A for the connector pinout.  
ETH  
2
EXT CLK  
1
3
E1  
CONTROL  
SET  
DEF  
Figure 2-6. CONTROL Connector  
To connect to an ASCII terminal:  
1. Connect the male 9-pin D-type connector of CBL-DB9F-DB9M-STR straight  
cable available from RAD to the CONTROL connector.  
2. Connect the other connector of the CBL-DB9F-DB9M-STR cable to an ASCII  
terminal.  
2.8 Connecting IPmux-11 to Power  
IPmux-11 accepts either 110–240 VAC or -48/-60 VDC power through the same  
power inlet.  
2-4  
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Before connecting or disconnecting any cable, the protective earth terminals of  
this unit must be connected to the protective ground conductor of the mains  
(AC or DC) power cord. If you are using an extension cord (power cable) make  
sure it is grounded as well.  
Any interruption of the protective (grounding) conductor (inside or outside the  
instrument) or disconnecting of the protective earth terminal can make this  
unit dangerous. Intentional interruption is prohibited.  
Warning  
Connecting AC Power  
AC power is supplied to IPmux-11 via a 1.5m (5 ft) standard power cable  
terminated by a standard 3-prong socket. A cable is provided with the unit.  
To connect AC power:  
1. Connect the power cable to the power connector on the IPmux-11 rear panel.  
2. Connect the power cable to the mains outlet.  
The unit turns on automatically upon connection to the mains.  
Connecting DC Power  
A special IEC 60320 adapter for the -40/-60 VDC power connection is supplied  
with the unit.  
To connect DC power:  
Refer to the DC power supply connection supplement for instructions how to  
wire the DC adapters, and to the Handling Energized Products section.  
IPmux-11 Ver. 2.00  
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Chapter 3  
Operation  
This chapter:  
Provides a detailed description of the front panel controls and indicators and  
their functions  
Explains power-on and power-off procedures  
Provides instructions for configuration using a terminal connected to the  
IPmux-11 control port  
Provides instructions for configuration using a Web browser  
Illustrates the management menus.  
For a detailed explanation of parameters on the menus, see Chapter 4.  
3.1  
Turning IPmux-11 On  
To turn on IPmux-11:  
Connect the power cord to the mains.  
The PWR indicator lights up and remains lit as long as IPmux-11 receives  
power.  
Once it is powered up, IPmux-11 operates automatically. IPmux-11 requires no  
operator attention once installed, with the exception of occasional monitoring of  
front panel indicators. Intervention is only required when IPmux-11 must be  
configured to its operational requirements, or diagnostic tests are performed.  
3.2  
Controls and Indicators  
The unit's LEDs are located on the front and rear panels (see Figure 3-1).  
Table 3-1 lists the functions of the IPmux-11 LED indicators.  
®
IPmux-11  
Figure 3-1. IPmux-11 Front Panel  
IPmux-11 Ver. 2.00  
Controls and Indicators  
3-1  
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Chapter 3 Operation  
Installation and Operation Manual  
Table 3-1. IPmux-11 LEDs and Controls  
Name  
PWR  
ALM  
Type  
Function  
Location  
Green LED  
ON – Power is ON  
Front panel  
Front panel  
Red/yellow  
LED  
ON (red) – Active alarm is stored in the log file  
ON (yellow) – An alarm is present in the log file  
OFF – No alarms are stored in the log file  
E1 SYNC  
T1 SYNC  
Red/green  
LED  
ON (green) – E1 link is synchronized  
ON (red) – E1 link has lost synchronization  
OFF – E1 link is disabled  
Front panel  
Front panel  
Red/green  
LED  
ON (green) – T1 link is synchronized  
ON (red) – T1 link has lost synchronization  
OFF – T1 link is disabled  
ETH  
LINK/ACT 1  
Green LED  
Green LED  
Green LED  
ON – Network Ethernet link is OK  
Front panel  
Front panel  
Front panel  
Rear panel  
Blinks – Data is being transmitted and received on the network  
Ethernet link  
ETH  
LINK/ACT 2  
ON – User Ethernet link 1 is OK  
Blinks – Data is being transmitted and received on the user  
Ethernet link 1  
ETH  
LINK/ACT 3  
ON – User Ethernet link 2 is OK  
Blinks – Data is being transmitted and received on the user  
Ethernet link 2  
EXT CLK  
SET DEF  
Red/green  
LED  
ON (green) – IPmux-11 is configured to external clock and valid  
clock input is detected  
ON (red) – IPmux-11 is configured to external clock and no valid  
clock input is detected  
OFF – IPmux-11 is not configured to external clock or the unit is  
off  
Button  
Restores default values  
Rear panel  
3-2  
Controls and Indicators  
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Chapter 3 Operation  
3.3  
Default Settings  
The following table lists the default settings of the IPmux-11 configuration  
parameters.  
Table 3-2. Default Settings  
Parameter  
System  
Default Value  
IP address  
Empty  
Empty  
0.0.0.0  
Enable  
Disable  
SNMP_trap  
public  
private  
0.0.0.0  
Empty  
Empty  
Empty  
Empty  
Empty  
Empty  
su  
IP mask  
Default gateway  
DHCP status  
Authentication failure trap  
Trap  
Read  
Write  
Manager IP address  
Manager location  
Link up/down trap  
Alarm trap  
VLAN tagging  
VLAN ID  
VLAN priority  
User name  
Permission  
Access  
Full control  
All  
Telnet access  
Web access  
Alarm ID  
Enable  
Enable  
Trap status  
Baud rate (bps)  
Data bits  
Active  
115200  
8
Parity  
None  
1
Stop bits  
Flow control  
Master clock source  
None  
Port1  
IPmux-11 Ver. 2.00  
Default Settings  
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Installation and Operation Manual  
Table 3-2. Default Settings (Cont.)  
Parameter  
Default Value  
Port1  
Fall back clock source  
Master clock  
External  
Fall back clock  
Physical Layer (TDM, E1)  
Admin status  
Internal  
Enable  
Adaptive  
Disable  
Short haul  
Framed G.704  
7E  
Transmit clock source  
Loopback state  
Rx sensitivity  
Line type  
Idle code  
Send upon fail  
OOS code  
OOS code  
FF  
OOS signaling  
Mark signaling code  
Space signaling code  
External Clock interface  
Trail mode  
Space  
D
1
Balance  
Termination  
Physical Layer (TDM, T1)  
Admin status  
Enable  
Transmit clock source  
Line type  
Adaptive  
ESF  
Line code  
B8ZS  
Line interface  
DSU  
Line BildOut  
0 dB  
Line length  
0–133  
Restoration time  
Idle code  
TR-6211 (10 seconds)  
7E  
Send upon fail  
OOS code  
OOS code  
FF  
Signaling mode  
OOS signaling  
Mark signaling code  
Space signaling code  
None  
Space  
D
1
3-4  
Default Settings  
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Chapter 3 Operation  
Table 3-2. Default Settings (Cont.)  
Parameter  
Default Value  
Trail mode  
Termination  
Physical Layer (ETH)  
Channel state  
Enable  
Auto negotiation  
Disable for fiber optic interface  
Enable for copper interface  
Max capability advertised  
Default type  
100baseT full duplex  
10baseT half duplex  
Connection  
Connection mode  
Destination IP address  
Next hop address  
IP TOS  
Static  
0.0.0.0  
0.0.0.0  
0
Connection status  
Destination bundle  
TDM bytes in frame  
Payload format  
OAM connectivity  
Jitter buffer  
Enable  
1
V2  
Disable  
3
VLAN tagging  
PSN Type  
Disable  
UDP/IP  
Outbound label tagging  
Inbound label tagging  
Next Hop Type  
Far End Type  
Disable  
Disable  
IP  
(The current device interface type)  
Bridge  
Aging time  
304  
VLAN ID  
Status  
Enable  
0 - Disable  
Rate limit  
IPmux-11 Ver. 2.00  
Default Settings  
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Chapter 3 Operation  
Installation and Operation Manual  
3.4  
Configuration Alternatives  
If required, IPmux-11 can be reconfigured. The IPmux-11 configuration and  
monitoring operations are performed using any of the following tools:  
ASCII terminal connected to supervisory port  
ConfiguRAD, a Web-based management system, using a Web browser running  
on a PC connected to the network  
RADview, an SNMP based management system with a graphical user interface.  
See RADview SC/TDMoIP User's Manual for details.  
The following functions are supported by the IPmux-11 management software:  
Viewing system information  
Modifying configuration and mode of operation, including setting system  
default values  
Monitoring IPmux-11 performance  
Initiating diagnostic tests  
Uploading and downloading software and configuration files.  
Working with Terminal  
To start a terminal control session:  
1. Make sure all IPmux-11 cables and connectors are properly connected.  
2. Connect IPmux-11 to a PC equipped with an ASCII terminal emulation  
application (for example, Windows Hyper Terminal or Procomm).  
3. Turn on the control terminal PC and set its port parameters to 115.2 kbps,  
8 bits/character, 1 stop bit, no parity. Set the terminal emulator to ANSI VT100  
emulation (for optimal view of system menus).  
4. When the initialization and self-test are over, a menu appears displaying  
initialization and self-test results. If problems are encountered, refer to  
Chapter 6 for troubleshooting instructions.  
Login  
To prevent unauthorized modification of the operating parameters, IPmux-11  
supports two access levels: .  
Superuser can perform all the activities supported by the IPmux-11  
management facility, including defining new users.  
User’s access rights (full control or read only) are defined by the superuser.  
Users are not allowed to create new users.  
To enter as a superuser:  
1. Enter su for user name.  
2. Enter 1234 for password.  
This allows you to configure all the parameters of IPmux-11, and to change the  
su and user passwords.  
3-6  
Configuration Alternatives  
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Chapter 3 Operation  
To enter as a user:  
1. Enter user for user name.  
2. Enter 1234 for password.  
Note  
If the password is invalid in three consecutive attempts, the system becomes  
inaccessible for 15 minutes.  
How to use the terminal to perform a desired activity:  
To select a menu item, type the corresponding line number and then press  
<Enter>. This will either …  
… display a submenu or a parameter selection screen …  
or …  
… let you type the (free text) parameter value in the same row  
or …  
… toggle the current value of the corresponding parameter (relevant to  
ENABLE/DISABLE or ON/OFF selections).  
The type of response to be expected after selecting a menu item is indicated as  
follows:  
>
Selecting that item will display a submenu or a parameter  
selection screen.  
...  
Selecting that item will let you type the desired value in the  
same line.  
Nothing  
When neither symbol is displayed, selecting that item will toggle  
the current selection, now shown in brackets (for example, this  
will change ENABLE to DISABLE or vice versa).  
When a menu does not fit on one screen (because it includes many lines), it is  
displayed on two consecutive pages. In this case, you will see …(N) after the  
last line on the first page and …(P) after the last line on the second page:  
While on the first page, press N to display the second page  
While on the second page, press P to return to the first page.  
When a configuration screen is organized as a table, a special set of keys is  
used for navigation within the table (such screens always have a ? (help) option  
that displays these keys). The following keys may be used for navigation within  
tables:  
L – move to the left  
R – move to the right  
^D – scroll down  
^U – scroll up  
In addition, the following shortcuts are also available:  
Tab – select the next cell that may be changed  
M – switch to the menu mode  
G followed by <row number>,<col number> – select a specific cell. For  
example, type G2,5 to select the fifth cell in the second row.  
The current value of a parameter is listed within parentheses ( ). To change a  
parameter value on a parameter selection screen:  
IPmux-11 Ver. 2.00  
Configuration Alternatives  
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Installation and Operation Manual  
Type the line number corresponding to the desired value, and then press  
<Enter>  
To enter a value which requires free text entry, type in the desired string  
and then press <Enter>. Use backspace to erase the current string.  
Note that whenever applicable, the allowed range of values of a parameter  
is listed within square brackets [ ].  
The entry is checked after pressing <Enter>, and it is accepted only if it is  
valid:  
If you make an error, for example, if you press a key not active on the  
current screen or select an invalid parameter value, an ERROR indicator  
appears in the right-hand corner. This indicator disappears as soon as you  
make a correct operation.  
If you select a parameter value incompatible with the current operating  
state or other parameters, you will see a message that explains the error.  
When done with the current screen, press <Esc> to return to the previous  
screen, or type ! to return directly to the main menu.  
Ending a Terminal Configuration Session  
To end the current terminal session:  
Type &.  
After a session is ended, it is necessary to enter again a valid user name and  
password to start a new session.  
Working with ConfiguRAD  
Web Browser Requirements  
The following Web browsers can be used to access the IPmux-11 supervision  
utility from any location that enables access to the IPmux-11 using Internet  
protocols.  
Internet Explorer 6.0, running on Windows™ 98, Windows™ 2000,  
Windows™ XP  
Netscape Communicator 7.1, running on Windows™ NT or Unix.  
However, before using Web access, it is necessary to perform a preliminary  
configuration of IPmux-11.  
When using a Web browser, pay attention to the following points:  
Enable scripts  
Configure the firewall that is probably installed on your PC to allow access to  
the destination IP address  
Disable pop-up blocking software (such as Google Popup Blocker); you may  
also have to configure your spyware/adware protection program to accept  
traffic from/to the destination IP address  
Browsers store the last viewed pages in a special cache. To prevent  
configuration errors, it is absolutely necessary to flush the browser’s cache  
whenever you return to the same screen.  
3-8  
Configuration Alternatives  
IPmux-11 Ver. 2.00  
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Chapter 3 Operation  
General Web Browsers Operating Procedures  
To manage IPmux-11 via Web browser:  
1. Open the Web browser.  
2. Enter the IP address of IPmux-11 in the address field of the browser in the  
following format: http://’IP address’ (‘IP address’ stands for the actual  
IPmux-11 IP address).  
3. After entering the address, press <Enter> to command the browser to  
connect.  
4. After the opening window is displayed, click LOGIN.  
5. Perform log-in.  
You will see the main menu.  
6. Use standard browser operating procedures to perform the desired activities.  
At the left-hand bottom corner, ConfiguRAD provides some auxiliary management  
tools:  
Status – shows the number of users currently managing IPmux-11  
Trace – opens an additional pane for system messages, progress indicators  
(ping, software and configuration file downloads) and alarms. It is  
recommended to keep the trace pane open all the time.  
Refresh All – refreshes all ConfiguRAD display elements.  
IPmux-11 Ver. 2.00  
Configuration Alternatives  
3-9  
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Chapter 3 Operation  
Installation and Operation Manual  
Overview of Menu Operations  
Use these menu trees as a reference aid while performing configuration and  
control functions. Chapter 4 illustrates menus and explains parameters.  
Main Menu  
1. Inventory  
2. Configuration  
3. Monitoring  
4. Diagnostics  
5. Utilities  
Device Info  
1. System name  
2. System location  
System  
Host IP  
Configuration  
1. Host IP  
1. IP address  
2. IP mask  
3. Default gateway  
4. DHCP  
5. DHCP status  
1. System  
Authentication/Community  
1. Authentication failure trap  
2. Trap  
3. Read  
4. Write  
2. Management  
3. System Clock  
4. Control port  
5. Date/time  
2. Physical Layer  
3. Connection  
4. Bridge  
Server ID  
Lease expiration time  
Current status  
6. Factory default  
Manager List  
1. Manager IP address  
2. Manager location  
3. Link up/down trap  
4. Alarm trap  
5. VLAN tagging  
6. VLAN ID  
Management  
1. Device info  
2. Authentication/community  
3. Manager list  
4. Management access  
5. Alarm trap mask  
7. VLAN priority  
System Clock  
Management Access  
User Access  
1. User name  
1. Master clock  
1. User access  
2. Telnet access  
3. Web access  
4. Snmp access  
2. Master source  
3. Fall back clock  
4. Fall back source  
2. Permission  
3.  
Access  
4. 'su' password  
Control Port  
Data bits  
Parity  
Stop bits  
5. New password  
6. Confirmation  
Alarm Traps Mask  
1. Alarm ID  
2. Trap status  
Flow control  
1. Baud rate  
Date/Time  
1. Set time  
2. Set date  
Figure 3-2. Main Menu > Configuration > System  
Configuration  
TDM (E1)  
TDM (T1)  
Physical Layer  
1. Admin status  
1. Admin status  
2. Transmit clock source  
3. Rx sensitivity  
4. Trail Mode  
1. System  
1. TDM interface type  
2. TDM  
3. ETH  
2. Transmit clock source  
3. Rx sensitivity  
4. Trail Mode  
5. Line type  
6. Line code  
7. Line interface  
8. Line length or Line BildOut  
9. Restoration time  
10. Idle code  
2. Physical layer  
3. Connection  
4. Bridge  
5. Line type  
4. External Clock  
O
r
6. Idle code  
7. Send upon fail  
8.  
OOS code  
9. OOS signaling  
10. Mark signaling code  
11. Space signaling code  
11. Send upon fail  
12. OOS code  
13. Signaling mode  
14. OOS signaling  
15. Mark signaling code  
16. Space signaling code  
ETH  
1. Channel state  
2. Auto negotiation  
3. Max capability advertised  
4. Default type  
Figure 3-3. Configuration > Physical Layer > TDM and ETH Configuration  
3-10  
Configuration Alternatives  
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Chapter 3 Operation  
Configuration  
1. System  
2. Physical layer  
3. Connection  
4. Bridge  
Connection  
1. Bundle ID  
2. Connection Mode  
3. PSN Type  
2. DS0 bundle  
when Connection Mode=TDMoIP CE,  
PSN Type=UDP/IP  
Bundle Connection  
3. Bundle connection  
1. Destination IP address  
2. Next hop  
3. IP TOS  
Bridge  
1. Aging time  
4. Connection status  
5. Destination bundle  
6. TDM bytes in frame(x48 bytes)  
7. Payload format  
8. OAM connectivity  
9. Jitter buffer [msec]  
10. OOS mode  
2. Erase MAC table  
3. Bridge policy  
4. VLAN table  
VLAN Table  
11. VLAN tagging  
12. VLAN ID  
13. VLAN priority  
1. Channel  
2. VLAN ID  
3. Status  
when Connection Mode=TDMoIP CE,  
PSN Type=MPLS/ETH  
Bundle Connection  
1. Destination IP address  
2. Outbound label tagging  
3. Outbound tunnel label  
4. Outbound EXP bits  
5. Inbound label tagging  
6. Inbound tunnel label  
7. Connection status  
8. Destination bundle  
9. Next hop type  
10. Next hop IP address  
11. TDM bytes in frame(x48 bytes)  
12. Far end type  
13. OAM connectivity  
14. Jitter buffer [msec]  
15. Sensitive  
16. OOS mode  
17. VLAN tagging  
18. VLAN ID  
19. VLAN priority  
Figure 3-4. Configuration > Connection and Bridge  
Monitoring  
Statistics  
1. Statistics  
2. Status  
3. Event log  
1. TDM physical layer  
2. Connection  
3. Bridge  
Status  
1. Diagnostics loopback  
2. TDM Physical layer  
3. ETH Physical layer  
4. Connection  
5. System Clock  
Event Log  
1. Read log file  
2. Clear log file  
Figure 3-5. Monitoring  
IPmux-11 Ver. 2.00  
Configuration Alternatives  
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Ping  
Diagnostics  
1. Destination IP address  
2. VLAN tagging  
3. VLAN ID  
4. VLAN priority  
5. Number of frames to send  
6. Ping send  
1. Ping  
2. Trace route  
3. Loopback  
4. Self test results  
Trace route  
1. Destination IP address  
2. VLAN tagging  
3. VLAN ID  
4. VLAN priority tag  
5. Trace route send  
Loopback  
1. Loopback state  
Self Test Results  
1. Framer test  
2. Bridge test  
Figure 3-6. Diagnostics  
Utilities  
File Utilities  
Download/Upload Using FTP  
1. File Utilities  
1. Download/upload using FTP  
1. File name  
2. Reset  
2. Command  
3. Server IP  
4. Retry timeout  
5. Total timeout  
6. View transfer status  
Figure 3-7. Utilities  
3.5  
Turning IPmux-11 Off  
To power off the unit:  
Remove the power cord from the power source.  
3-12  
Turning IPmux-11 Off  
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Chapter 4  
Configuration  
This chapter illustrates the IPmux-11 configuration screens and explains their  
parameters.  
Menu trees of the IPmux-11 management software are shown in Chapter 3.  
4.1 Configuration Sequence  
There are four basic configuration steps that need to be followed when deploying  
any IPmux unit:  
1. IP configuration – Setting the device host IP address and the manager IP address.  
2. Physical layer configuration – Setting the TDM parameters (line type, clocking,  
etc.) according to the application requirements and topology.  
3. Creating bundles – Allocating timeslots to bundles  
4. Connecting bundles – Directing the bundles defined above to remote IPmux  
unit.  
IPmux-11 can be managed by a network management station that is located on  
the LAN connected to the one of the unit’s Ethernet ports. In order to establish a  
proper connection, it is necessary to configure IPmux with a basic configuration.  
To perform preliminary IPmux configuration:  
1. Connect an ASCII terminal to the RS-232 control port of IPmux.  
2. Log in as Superuser (su).  
3. Assign an IP address to IPmux.  
4. Assign a subnet mask and a default gateway.  
5. You can also enable or disable the IPmux DHCP client.  
6. Set read, trap, and read/write communities to public.  
7. Set a manager IP address and location.  
8. Reset IPmux.  
Note  
Make sure that you save your settings at each configuration screen.  
IPmux-11 Ver. 2.00  
Configuration Sequence  
4-1  
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Chapter 4 Configuration  
Installation and Operation Manual  
4.2 Configuring IPmux-11 for Management  
The IPmux-11 management software allows you to perform the following:  
Defining IP parameters of the IPmux-11 host  
Configuring management access  
Configuring control port parameters  
Setting the date and time  
Configuring the system clock  
Resetting IPmux-11 to the default values.  
IPmux-11 system parameters are configured via System menu.  
To access System menu:  
1. From the Main menu, select Configuration.  
The Configuration menu is displayed.  
2. From the Configuration menu, select System.  
The System menu appears (see Figure 4-1).  
Configuration>System  
1. Host IP  
>
>
>
>
>
>
2. Management  
3. System clock  
4. Control port  
5. Date/Time  
6. Factory default  
>
Please select item <1 to 6>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-1. System Menu  
Configuring IP Host Parameters  
IPmux-11 can be managed by a network management station, which is located on  
the LAN connected to the one of the unit’s Ethernet ports. In order to establish a  
proper connection, it is necessary to configure the following: host IP address,  
subnet mask, default gateway, its trap, read and write communities. In addition,  
you can enable or disable DHCP client of the device.  
Configuring DHCP Client  
To facilitate integration of a new device into a DHCP IP network, if no IP address  
has been manually configured, IPmux-11 automatically requests one from the  
DHCP server upon booting. IPmux-11 is shipped with the DHCP client set to  
Enable.  
4-2  
Configuring IPmux-11 for Management  
IPmux-11 Ver. 2.00  
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Installation and Operation Manual  
Chapter 4 Configuration  
To enable DHCP client:  
1. From the System menu, select Host IP.  
The Host IP menu appears (see Figure 4-2).  
2. From the Host IP menu, select DHCP, and choose Enable.  
IPmux-11 starts broadcasting requests for an IP address. When the DHCP  
server is found, IPmux-11 receives from it all necessary host IP parameters.  
3. From the Host IP menu, select DHCP Status to view the current status of the  
IPmux-11 DHCP client:  
Server ID (IP address of the DHCP server)  
Lease expiration time (Time when the IP address lease expires)  
Current status – (Current status of the DHCP client: Locating Available  
Server, Waiting for Confirmation of Lease, etc)  
When the IP address lease is going to expire, DHCP client automatically requests  
lease extension.  
Note  
Configuration>System>Host IP  
1. IP address  
2. IP mask  
... (Empty)  
... (Empty)  
... (0.0.0.0)  
(Enable)  
>
3. Default gateway  
4. DHCP  
5. DHCP Status  
>
Please select item <1 to 5>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-2. Host IP Menu  
Managing IP Parameters of the IPmux-11 Host  
IPmux-11 allows entering IP parameters manually or using parameters acquired  
from the DHCP server.  
To define the IP parameters manually:  
1. Disable DHCP client.  
IPmux-11 releases the current IP address by sending the release message to  
the DHCP server, sets all host IP parameters to 0.0.0.0 and reboots itself  
automatically.  
2. From the Host IP menu, perform the following:  
Select Host IP list to define the host IP address  
Select IP mask to define the host IP mask.  
Select Default gateway to set the default gateway IP address.  
Note  
The default gateway must be in the same subnet as the host.  
IPmux-11 Ver. 2.00  
Configuring IPmux-11 for Management  
4-3  
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Chapter 4 Configuration  
Installation and Operation Manual  
To acquire a new IP address from the DHCP server:  
1. From the Host IP menu, set all host IP parameters (host IP, IP mask and default  
gateway) to 0.0.0.0.  
2. Enable the DHCP client.  
IPmux-11 reboots itself automatically and acquires new IP parameters from  
the DHCP server at startup.  
Configuring Management Parameters  
You can configure the following management parameters:  
Define system name and location  
Define read, write and trap communities  
Specify network managers  
Enable or disable management access via Telnet or Web browser  
Define alarm masks.  
Assigning a Name to IPmux-11 and Its Location  
The IPmux-11 management software allows you to assign a name to the unit and  
its location to distinguish it from the other devices installed in your system.  
To assign a name to IPmux-11 and its location:  
1. From the System menu (Figure 4-1), select Management.  
The Management menu is displayed.  
2. From the Management menu, select Device info.  
The Device Info menu appears (see Figure 4-3).  
3. From the Device Info menu, select System name and enter the desired name  
for the IPmux-11 device.  
4. Select System location, and enter the desired name for the current IPmux-11  
location.  
Configuration>System>Management>Device info  
1. System Name  
... (IPmux-11)  
... (Branch A)  
2. System Location  
>
Please select item <1 to 2>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-3. Device Info Menu  
Defining Read, Write and Trap Communities  
You have to assign names for the read, write and trap communities. In addition,  
you can enable sending the authentication failure trap, if a network manager from  
an unauthorized community attempts to access IPmux-11.  
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Chapter 4 Configuration  
To define read, write and trap communities:  
1. From the Management menu, select Authentication/community.  
The Authentication/Community menu appears (see Figure 4-4).  
2. From the Authentication/Community menu, do the following:  
Select Authentication failure trap to enable or disable sending this trap in  
case of an unauthorized access attempt.  
Select Trap to enter the name of a community to which  
IPmux-11 will send traps (up to 10 alphanumeric characters, case-sensitive).  
Select Read to enter the name of a community with read-only  
authorization (up to 10 alphanumeric characters, case-sensitive).  
Select Write to enter the name of a community with write authorization  
(up to 10 alphanumeric characters, case-sensitive).  
Configuration>System>Management>Authentication/community  
1. Authentication Failure Trap  
(Disable)  
... (SNMP_trap)  
... (public)  
2. Trap  
3. Read  
4. Write  
... (private)  
>
Please select item <1 to 4>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-4. Authentication/Community Menu  
Defining Network Managers  
Define or modify the network management stations to which the SNMP agent of  
IPmux-11 will send traps. Up to 16 managers can be defined. In addition, you can  
enable or disable manager stations to receive traps.  
To define network managers:  
1. From the Management Access menu (see Figure 4-1), select Manager list.  
The Manager List menu appears (see Figure 4-4).  
2. From the Manager List menu, perform the following:  
Select Manager IP address, and enter an IP address of the manager station.  
Select Manager Location and define the port via which the current  
network manager accesses IPmux-11 according to the options below. This  
option is available only if the VLAN tagging mode of both user ports is set to  
Double Tag (see Configuring the Ethernet Bridge section below). Only one  
network manager at a time is allowed to access IPmux-11 via user ports.  
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It is possible to set up a local or remote management link using the manager  
location and VLAN configuration. Refer to the configuration example at the end of  
this section.  
Note  
Network-Eth1 – The network manager accesses IPmux-11 via the  
network port (Ethernet port 1)  
User1-Eth2 – The network manager accesses IPmux-11 via the user port  
1 (Ethernet port 2)  
User2-Eth3 – The network manager accesses IPmux-11 via the user port  
2 (Ethernet port 3).  
Select Link up/down trap, and choose On to enable the management  
station to receive a trap when a link failure (link down) or link recovery (link  
up) occurs. Choose Off to disable Link Up/Down trap.  
Select Alarm trap, and choose On or Off to enable or disable sending  
alarm trap to the manager station.  
On – The alarm trap is sent to the management station informing of any  
alarm which is not masked (see Masking Alarms in Chapter 6). Both  
entry and exit from an alarm state are declared.  
Off – No alarm trap is sent to the management station, even if the alarm  
is masked.  
Select VLAN tagging, and choose On or Off to consider or ignore the VLAN  
tagging of the management traffic coming from the management station.  
Select VLAN ID, and enter the ID of the management station VLAN  
(1–4095).  
Select VLAN priority, and enter the priority of the management station  
VLAN (0–7).  
Configuration>System>Management>Manager list  
1. Manager IP address  
2. Manager location  
3. Link up/down trap  
4. Alarm trap  
... (0.0.0.0)  
... (Empty)  
(On)  
(Off)  
5. VLAN tagging  
6. VLAN ID  
(Off)  
... (0)  
... (0)  
7. VLAN priority  
>
Please select item <1 to 7>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-5. Manager List Menu  
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Chapter 4 Configuration  
Configuration Example  
Local Management  
Figure 4-6 illustrates how to manage a local IPmux-11 from an NMS connected via  
Ethernet user port 2.  
VLAN tagging mode of the Ethernet user ports is configured to Double Tag  
User and management traffic are separated by different VLANs  
Manager location is set to User2-Eth3.  
IPmux-11 separates management traffic sent to the local device MAC and marked  
by VLAN 1 from the user traffic marked by VLAN 100. The management traffic is  
processed by the local IPmux-11. The user traffic is sent to its destination via the  
network interface.  
User 1  
User Traffic  
(VLAN 100)  
VLAN 100  
Management Traffic  
(VLAN 1)  
Network  
User 2  
Switch  
VLAN 1  
User Equipment  
IPmux-11  
Network  
Management Station  
Figure 4-6. Local Management via User Ethernet Port  
Remote Management  
Figure 4-7 illustrates how to manage a local and remote IPmux-11 units from an  
NMS connected via Ethernet user port 2 of the local device.  
VLAN tagging mode of the Ethernet user ports of both IPmux-11 is configured  
to Double Tag  
User and management traffic are separated by different VLANs  
Manager location of the local IPmux-11 is set to User2-Eth3.  
Manager location of the remote IPmux-11 is set to Network-Eth1.  
IPmux-11 separates management traffic marked by VLAN 1 from the user traffic  
marked by VLAN 100. When the local IPmux-11 detects that the management  
traffic has been sent to the MAC of the remote unit, it forwards the traffic to its  
destination via the network interface.  
The remote IPmux-11 processes the management traffic received via its network  
interface and responds to the management requests.  
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User 1  
User 1  
User Traffic  
(VLAN 100)  
User Traffic  
(VLAN 100)  
VLAN 100  
VLAN 100  
User Equipment  
User 2  
Management Traffic  
User 2  
Network  
Network  
(VLAN 1)  
Switch  
VLAN 1  
VLAN 1  
User Equipment  
Remote  
IPmux-11  
Local  
IPmux-11  
Network  
Management Station  
Figure 4-7. Remote Management via User Ethernet Port  
Configuring Management Access Permissions and Methods  
The user access rights, as well as SNMP, Telnet and Web access authorization are  
configured via the Management Access menu.  
To access The Management Access menu:  
From the Management menu, select Management access.  
The Management Access menu is displayed (Figure 4-8).  
Configuration>System>Management>Management access  
1. User access  
2. Telnet access  
3. Web access  
>
>
> (Enable)  
> (Enable)  
Please select item <1 to 3>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-8. Management Access Menu  
Configuring User Access  
IPmux-11 management software allows you to define new users, their  
management and access rights. Only superusers (su) can create new users, the  
regular users are limited to changing their current passwords, even if they were  
given full management and access rights.  
To add a new user:  
1. Make sure that you logged in as su.  
2. From the Management Access menu, select User access.  
The User Access menu is displayed (see Figure 4-9).  
3. From the User Access menu, do the following:  
Select User name, and enter a name for a new user.  
Select Permission, and specify the user’s access rights (full control or  
read-only).  
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Select Access, and specify the user’s access methods (ASCII terminal,  
Telnet, Web browser, Telnet and Web browser, or all of them).  
Select 'su' password, and enter your current superuser password.  
Select New password, and assign a password to a new user name.  
Select Confirm and re-enter the new user password to confirm it.  
Save new settings by typing S, when asked.  
To delete an existing user:  
From the User Access menu, do the following:  
Type F or B to display a user that you intend to delete.  
Select 'su' password, and enter your current superuser password.  
Type D to delete the current user.  
Configuration>System>Management>Management access>User access  
1. User name  
... (su)  
2. Permission  
3. Access  
> (Full Control)  
> (All)  
... ()  
4. 'su' password  
5. New password  
6. Confirmation  
>
... ()  
... ()  
Please select item <1 to 6>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-9. User Access Menu  
Controlling Management Access  
You can enable or disable access to the IPmux-11 management system via an  
SNMP, Telnet or Web-based application. By disabling SNMP, Telnet or Web, you  
prevent unauthorized access to the system when security of the IPmux-11 IP  
address has been compromised. When SNMP, Telnet and Web access is disabled,  
IPmux-11 can be managed via an ASCII terminal only. In addition, you can limit  
access to the device to only the stations defined in the manager list. Table 4-1 details  
management access implementation, depending whether the network managers are  
defined or not.  
To define the management access method:  
1. From the Management menu, select Management Access.  
The Management Access menu appears (see Figure 4-10).  
2. From the Management Access menu, select TELNET Access to configure  
Telnet access, select SNMP Access to configure SNMP access, or select WEB  
Access to configure Web access.  
3. Define access mode for each management method:  
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Enable (Telnet, SNMP or Web access is enabled)  
Disable (Telnet, SNMP or Web access is disabled)  
Manager Only (Access is allowed only for the stations appearing in the  
manager list).  
Table 4-1. Management Access Implementation  
Access Method  
Mode  
Who is Allowed to Access IPmux-11  
Network  
Manager(s)  
Defined  
Network  
Manager(s) not  
Defined  
Enable  
Anybody  
Nobody  
Anybody  
Nobody  
Nobody  
Disable  
SNMP Access  
Telnet Access  
Web Access  
Manager Only  
Only defined  
network managers  
Enable  
Anybody  
Nobody  
Anybody  
Nobody  
Anybody  
Disable  
Manager Only  
Only defined  
network managers  
Enable  
Anybody  
Nobody  
Anybody  
Nobody  
Anybody  
Disable  
Manager Only  
Only defined  
network managers  
Configuration>System>Management>Management Access  
1. User Access  
>
2. TELNET access  
3. SNMP access  
4. WEB access  
>
> (Enable)  
> (Disable)  
> (Enable)  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-10. Management Access Menu  
Configuring Control Port Parameters  
Configuration parameters of the IPmux-11 control port, except for the baud rate  
are set at the factory and cannot be changed by the user (see Figure 4-11). These  
parameters have the following values:  
Data bits – 8  
Parity – None  
Stop bits – 1  
Flow control – None.  
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To select the baud rate:  
1. From the System menu (Figure 4-1), select Control port.  
The Control Port menu is displayed (see Figure 4-11).  
2. From the Control Port menu, select Baud rate, and configure baud rate of the  
IPmux-11 terminal control port to the desired value (9600, 19200, 38400,  
57600 or 11520 bps).  
Configuration>System>Control port  
Data bits  
Parity  
(8)  
> (None)  
(1)  
Stop bits  
Flow control  
> (None)  
> (115200)  
1. Baud rate (bps)  
>
Please select item <1 to 1>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-11. Control Port Menu  
4.3 Configuring IPmux-11 for Operation  
Configuring the System Clock  
You can configure the parameters of the IPmux-11 system clock, including the  
master clock and fall back clock. If the clock is adaptive or Rx clock then you can  
also configure the clock source.  
Note  
If the configured fallback clock source fails, the internal timing is used as the fallback  
clock source instead.  
To configure the system clock:  
1. From the System menu (Figure 4-1), select System clock.  
The System clock menu appears (See Figure 4-12).  
2. From the System clock menu, configure the following:  
Master clock (Master clock type):  
Internal  
Adaptive  
Rx clock  
Master source (Master clock source):  
Channel 1  
Channel 2  
Channel 3  
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Channel 4  
External  
Fall back clock (Fall back clock type):  
Internal  
Adaptive  
Rx clock  
None  
Fall back source (Fall back clock source):  
Channel 1  
Channel 2  
Channel 3  
Channel 4  
External  
3. Type S to save your changes.  
Configuration>System>System clock  
1. Master clock  
> (Rx clock )  
> (External )  
> (Adaptive )  
> (Channel 1 )  
2. Master source  
3. Fall back clock  
4. Fall back source  
>
Please select item <1 to 4>  
S - save  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-12. System Clock Menu  
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Chapter 4 Configuration  
Configuring IPmux-11 at the Physical Level  
The TDM (E1 or T1) and Ethernet interfaces of IPmux-11 must be configured at  
the physical level.  
Configuration>Physical layer  
1. TDM  
>
2. Eth  
>
3. External clock interface  
(Balance)  
>
Please select item <1 to 3>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-13. Physical Layer Menu  
Configuring the E1 TDM Interface  
The E1 and T1 interfaces of IPmux-11 are configured via the TDM menu.  
IPmux-11 automatically detects whether the interface is E1 or T1, and displays the  
appropriate menu.  
To configure the E1 interface:  
1. From the Configuration menu, select Physical layer.  
The Physical Layer menu appears.  
2. From the Physical Layer menu, select TDM.  
The TDM (E1) menu appears (see Figure 4-14).  
3. From the TDM (E1) menu, configure the following:  
Admin Status:  
Enable (E1 link is enabled)  
Disable (E1 link is disabled)  
Transmit clock source:  
Adaptive (Adaptive clock regeneration)  
Loopback (E1 recovered Rx clock is used as the Tx clock)  
Internal (Tx clock is received from an internal oscillator)  
System (System clock is used as the Tx clock)  
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Rx sensitivity (Maximum attenuation of the receive signal that can be  
compensated for by the interface receive path):  
Short haul (-10 dB)  
Long haul (-32 dB)  
Trail Mode (Enables the end-to-end transfer of TDM OAM (Operation,  
administration, and maintenance) data in framed mode, when the payload  
format is set to V2.  
Termination (Trail-extended mode is disabled; the TDM networks  
function as separate OAM domains)  
Extension (Trail-extended mode is enabled; OAM data is passed  
between the TDM networks)  
Line type (E1 framing mode):  
Unframed G.703 (Framing is not used)  
Framed G.704 (G.704 framing, CRC-4 function disabled)  
Framed G.704 CRC4 (G.704 framing, CRC-4 function enabled)  
Framed MF (CAS enabled, CRC-4 function disabled)  
Framed MF CRC4 (CAS enabled, CRC-4 function enabled).  
Idle Code (code transmitted to fill unused timeslots in the E1 frames): 00 to ff.  
4. If you configure the Line type to Framed MF or Framed MF CRC4, type N to  
display the next page of E1 parameters (Figure 4-15):  
Send Upon Fail (Notification sent to the E1 side if Ethernet link fails):  
OOS Code (Out-of-service code)  
AIS (Alarm indication signal)  
OOS code (Code to be sent to the E1 side if Ethernet link fails): 0–ff  
OOS signaling (Out-of-service signaling method. OOS signal is sent toward  
the IP path when loss of signal, loss of frame, or AIS is detected at the E1  
line. The OOS signal is also sent toward the E1 line when packet receive  
buffer overrun or underrun occurs.):  
Space (Code specified by the Space Signaling Code parameter is sent)  
Mark (Code specified by the Mark Signaling Code parameter is sent)  
Space Mark (Space code is sent in the first 2.5 seconds, then mark code  
is sent)  
Mark Space (Mark code is sent in the first 2.5 seconds, then space code  
is sent)  
Mark signaling code: 0–f  
Space signaling code: 0–f  
5. Type S to save the changes.  
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Chapter 4 Configuration  
Configuration>Physical layer>TDM (E1)  
Channel ID  
(1)  
Restoration time  
Signaling mode  
>(CCITT)  
(CAS Disabled)  
1. Admin status  
(Enable)  
2. Transmit clock source  
3. Rx sensitivity  
4. Trail mode  
>(Adaptive)  
(Short haul)  
(Termination)  
>(Framed G.704)  
... (7E)  
5. Line type  
6. Idle code[0 - ff]  
7. Send upon fail  
(OOS Code)  
(FF)  
8. OOS Code[0 - ff]  
(N)  
>
Please select item <1 to 11>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-14. TDM (E1) Menu (Page 1)  
Configuration>Physical layer>TDM (E1)  
...(P)  
9. OOS signaling  
> (Space)  
... (D)  
10.Mark signaling code[0 - f]  
11.Space signaling code[0 - f]  
>
... (1)  
Please select item <1 to 11>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-15. TDM (E1) Menu (Page 2)  
Configuring the E1 External Clock Interface  
For the units with the E1 user interface it is necessary to define the external clock  
interface type: balanced or unbalanced. When it is set to unbalanced, connection  
to the external clock source must be performed via CBL-RJ45/2BNC/E1/X adapter  
cable.  
To configure the external clock E1 interface type:  
From the Physical Layer menu (Configuration > Physical Layer), select  
External Clock Interface and choose its type: balanced or unbalanced.  
Configuring the T1 TDM Interface  
The procedure for configuring the T1 port is similar to the procedure described  
above for configuring the E1 port.  
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To configure T1 interface:  
From the TDM (T1) menu, configure the following:  
Admin Status:  
Enable (T1 link is enabled)  
Disable (T1 link is disabled)  
Transmit clock source:  
Adaptive (Adaptive clock regeneration)  
Loopback (E1 recovered Rx clock is used as the Tx clock)  
Internal (Tx clock is received from an internal oscillator)  
System (System clock is used as the Tx clock)  
Rx sensitivity (Maximum attenuation of the receive signal that can be  
compensated for by the interface receive path):  
Short haul (-10 dB)  
Long haul (-32 dB)  
Trail Mode (Enables the end-to-end transfer of TDM OAM (Operation,  
administration, and maintenance) data in framed mode, when the payload  
format is set to V2.  
Termination (Trail mode is disabled; the TDM networks function as  
separate OAM domains)  
Extension (Trail mode is enabled; OAM data is passed between the  
TDM networks)  
Line type (T1 framing mode):  
Esf (24 frames per multiframe)  
SF (D4) (12 frames per multiframe)  
Line code (Line code and zero suppression method used by the port):  
B7ZS  
B8ZS  
AMI  
Line interface:  
DSU (DSU interface)  
CSU (CSU interface)  
Line length (DSU mode only, length of a cable in feet between the  
IPmux-11 T1 port connector and the network access point):  
0–133  
133–266  
266–399  
399–533  
533–655  
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Line buildOut (CSU mode only, Tx gain level relative to T1 output transmit  
level)  
0 dB (No attenuation)  
7.5 dB (Attenuation of 7.5 dB relative to the nominal transmit level)  
15 dB (Attenuation of 15 dB relative to the nominal transmit level)  
Restoration time (Time required for the T1 port to return to normal  
operation after sync loss):  
TR-6211 (10 seconds)  
Fast (1 second)  
Idle Code (Code transmitted to fill unused timeslots in the T1 frames):  
00 to ff.  
Send Upon Fail (Notification sent to the T1 side if Ethernet link fails):  
OOS Code (Out-of-service code)  
AIS (alarm indication signal)  
OOS code (Code to be sent to the T1 side if Ethernet link fails): 0ff  
Signaling mode:  
None  
Robbed Bit  
OOS signaling (Out-of-service signaling method. OOS signal is sent toward  
the IP path when loss of signal, loss of frame, or AIS is detected at the T1  
line. The OOS signal is also sent toward the T1 line when packet receive  
buffer overrun or underrun occurs.):  
Space (Code specified by the Space Signaling Code parameter is sent)  
Mark (Code specified by the Mark Signaling Code parameter is sent)  
Space Mark (Space code is sent in the first 2.5 seconds, then mark code  
is sent)  
Mark Space (Mark code is sent in the first 2.5 seconds, then space code  
is sent)  
Mark signaling code: 0f  
Space signaling code: 0f  
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Configuration>Physical layer>TDM (T1)  
Channel ID  
(1)  
1. Admin status  
(Enable)  
2. Transmit clock source  
3. Rx sensitivity  
4. Trail mode  
>(Adaptive)  
(Short haul)  
(Termination)  
>(ESF)  
5. Line type  
6. Line code  
>(B8ZS)  
7. Line interface  
8. Line length (feet)  
9. Restoration time  
>(DSU)  
>(0-133)  
>(TR-621 (10 seconds))  
10.  
Idle Code[0 - ff]  
... (7E)  
(N)  
>
Please select item <1 to 16>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-16. TDM (T1) Menu (Page 1)  
Configuration>Physical layer>TDM (T1)  
...(P)  
11.Send upon fail  
(OOS Code)  
... (FF)  
(Robbed Bit)  
> (Space)  
12.OOS code[0 - ff]  
13.Signaling mode  
14.OOS signaling  
15.Mark signaling code[0 - f]  
... (D)  
... (1)  
16.Space signaling code[0 - f]  
>
Please select item <1 to 16>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-17. TDM (T1) Menu (Page 2)  
Configuring Ethernet Interfaces  
IPmux-11 includes one network and up to two user Ethernet ports.  
To configure Ethernet interface:  
1. From the Physical Layer menu, select ETH.  
The ETH menu appears (see Figure 4-18).  
2. From the ETH menu, type F to select the Ethernet interface that you intend to  
configure (Network-Eth1, User1-Eth2 or User2-Eth3).  
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Chapter 4 Configuration  
3. When the required Ethernet interface is displayed, configure the following:  
Channel state:  
Enable (Current Ethernet interface is enabled)  
Disable (Current Ethernet interface is disabled)  
Auto negotiation:  
Enable (Autonegotiation is enabled)  
Disable (Autonegotiation is disabled)  
Max capability advertised (Maximum capability to be advertised during the  
autonegotiation process):  
10BaseT Half Duplex  
10BaseT Full Duplex  
100BaseT Half Duplex  
100BaseT Full Duplex  
Default type (Rate and duplex mode, if the autonegotiation is disabled):  
10BaseT Half Duplex  
10BaseT Full Duplex  
100BaseT Half Duplex  
100BaseT Full Duplex  
Note  
When autonegotiation protocols do not support each other, this will degrade the  
connection to a half-duplex mode. In order to avoid this, autonegotiation should be  
disabled and the ports should be configured manually. Half-duplex degradation will  
occur also when autonegotiation is enabled at one port and disabled at the  
opposite port.  
4. Type S to save your changes.  
Configuration>Physical layer>ETH  
Channel  
> (Network-Eth1)  
1. Channel state  
(Enable)  
2. Auto negotiation  
3. Max capability advertised  
4. Default type  
(Disable)  
> (100baseT Full Duplex)  
> (100baseT Full Duplex)  
>
Please select item <1 to 4>  
F – Forward  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-18. ETH Menu  
IPmux-11 Ver. 2.00  
Configuring IPmux-11 for Operation  
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Chapter 4 Configuration  
Installation and Operation Manual  
Configuring Bundle Connections  
IPmux-11 supports one bundle that can include up to 31 E1 or up to 24 T1  
timeslots. The bundle can be connected to any bundle of the TDMoIP device that  
operates opposite IPmux-11. Currently, TDMoIP traffic is sent and received via the  
network port only.  
To configure bundle connection:  
1. From the Configuration menu, select Connection.  
The Connection menu appears (see Figure 4-19).  
2. Select DS0 bundle.  
The DS0 Bundle menu appears (see Figure 4-20).  
3. From the DS0 Bundle, assign timeslots to the current bundle (1) by selecting a  
timeslot and choosing 1 (assigned) or 0 (not assigned).  
You can assign all timeslots to the current bundle at once by typing E.  
You can cancel assignment of all timeslots to the current bundle at once by  
typing L.  
4. From the Connection menu, configure the PSN Type:  
UDP/IP (bundle encapsulation is UDP/IP)  
MPLS/ETH (bundle encapsulation is MPLS (Multi-Protocol Label Switching)  
/ Ethernet)  
Note  
PSN Type is only available after Bundle ID has been set.  
5. From the Connection menu, select Bundle connection.  
The Bundle Connection menu appears (see Figure 4-21 and Figure 4-22).  
Note  
IPmux-11 only shows the relevant menu options, depending on the connection  
mode and PSN type.  
6. From the Bundle Connection menu, configure the following (if it appears in  
the menu):  
Destination IP Address (IP address of the destination device): 0.0.0.0 to  
255.255.255.255.  
Outbound Label Tagging:  
Enable (Outbound labels are enabled)  
Disable (Outbound labels are disabled)  
Outbound tunnel label (MPLS transmit label): 0–1048576  
Outbound EXP bits (MPLS label exp bits): 0–7  
Inbound label tagging:  
Enable (Inbound labels are enabled)  
Disable (Inbound labels are disabled)  
Inbound tunnel label (MPLS receive label): 0–1048576  
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Chapter 4 Configuration  
Destination bundle (bundle number in the destination device): 1–8063  
Next hop address (Use the next hop parameter when the destination  
address is not in the device subnet. In such cases the Ethernet frame is sent  
to the IP or MAC address of the next hop. If it is not configured, the default  
gateway is used.): 0.0.0.0 to 255.255.255.255 (if IP) or 00-00-00-00-00-00  
to FF-FF-FF-FF-FF-FF (if MAC).  
Next hop type:  
IP (Type of interface at the next hop is IP)  
MAC (Type of interface at the next hop is MAC)  
Connection Status:  
Enable (Connection is enabled)  
Disable (No frames are sent on this connection)  
TDM Bytes in Frame (x48 bytes) (UDP payload length – this parameter  
enables reduction of Ethernet throughput): 1–30  
Far end type (Type of the TDM interface of the remote unit):  
E1 (Type of interface at the far end of the link is E1)  
E1 (multi-frame) (Type of interface at the far end of the link is E1 multi-  
frame)  
T1 (ESF) (Type of interface at the far end of the link is T1 ESF)  
T1 (SF) (Type of interface at the far end of the link is T1 SF)  
Unframed / Serial (Type of interface at the far end of the link is  
unframed or serial)  
OAM connectivity:  
Enable (The device starts transmitting at full rate after it detects an active,  
properly configured, the unit on the other side of the line.)  
Disable (OAM connectivity is disabled)  
Jitter buffer (Desired depth of the jitter (PDVT) buffer. The Packet Delay  
Variation Tolerance buffer absorbs network delay variation or jitter):  
3–300 msec  
OOS Mode (Defines whether Out of Service (OOS) signal will be  
transmitted. The OOS signal is sent toward the IP path when loss of signal,  
loss of frame, or AIS is detected at the TDM line. The OOS signal is also  
sent toward the TDM line when packet receive buffer overrun or underrun  
occurs.):  
Tx OOS (OOS transmission is enabled)  
Stop Tx (OOS transmission is disabled)  
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Sensitive (Whether to optimize the clock for accurateness or for constant  
delay):  
Data (Accurate clock is more important than constant delay.  
Delay (Constant delay is more important than accurate clock.  
VLAN Tagging:  
Enable (VLAN tagging is enabled)  
Disable (VLAN tagging is disabled)  
VLAN ID: 1–4095  
VLAN priority: 0–7  
IP TOS (IP ToS field in the IP frames transmitted by IPmux-11. ToS  
configuration configures the WHOLE byte, since different vendors may use  
different bits to tag packets for traffic prioritization. ToS assignment applies  
to all TDM packets leaving IPmux-11.): 0–255  
Payload Format (TDMoIP format):  
V1 (Version 1)  
V2 (Version 2)  
When PSN Type is MPLS/ETH the payload format is always V2.  
Make sure that selected VLAN is configured as a member of the network port  
Note  
7. Type S to save the changes.  
Configuration>Connection  
1. Bundle ID[1 - 1]  
2. Connection mode  
3. PSN type  
... (1)  
> (TDMoIP CE)  
> (UDP/IP)  
4. DS0 bundle  
5. Bundle connection  
>
[]>  
>
Please select item <1 to 5>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-19. Connection Menu  
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Chapter 4 Configuration  
Configuration>Connection>DS0 bundle  
+1  
TS 0 1  
+2  
0
+3  
0
+4  
0
+5  
0
+6  
0
+7  
0
+8  
0
+9  
0
+10  
0
TS 10 0  
TS 20 0  
TS 30 0  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1. Change cell [0 - 1]  
>
... (0)  
Please select item <1 to 1>  
E - Enable All; L - Disable All  
ESC-prev.menu; !-main menu; &-exit; ?-Help  
1 Mngr/s  
Figure 4-20. DS0 Bundle Menu  
Configuration>Connection>Bundle connection  
TDM channel ID: 1 Bundle ID: 1  
1. Destination IP address  
2. Next hop  
... (0.0.0.0)  
... (0.0.0.0)  
... (0)  
3. IP TOS[0 - 255]  
4. Connection status  
5. Destination bundle[1 - 8063]  
(Enable)  
... (1)  
6. TDM bytes in frame(x48 bytes)[1 - 30] ... (1)  
7. Payload format  
8. OAM connectivity  
9. Jitter buffer [msec][3 - 300]  
10. OOS mode  
(V2)  
(Disable)  
... (300)  
(Tx OOS)  
(Enable)  
11. VLAN tagging  
12. VLAN ID[1 - 4095]  
13. VLAN priority[0 - 7]  
>
... (1)  
... (7)  
Please select item <1 to 13>  
F - Forward Bundle ID; D - Delete; ? - Help  
ESC-prev.menu; !-main menu; &-exit  
Figure 4-21. Bundle Connection Menu when Connection Mode=TDMoIP CE, PSN Type=UDP/IP  
IPmux-11 Ver. 2.00  
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Configuration>Connection>Bundle connection  
TDM channel ID: 1 Bundle ID: 1  
1. Destination IP address  
2. Outbound label tagging  
3. Outbound tunnel label  
4. Outbound EXP bits  
5. Inbound label tagging  
6. Inbound tunnel label  
7. Connection status  
8. Destination bundle  
9. Next hop type  
... (0.0.0.0)  
(Enable)  
... (4)  
... 7  
(Enable)  
... (5)  
(Enable)  
... (1)  
(IP)  
10. Next hop IP address  
11. TDM bytes in frame(x48 bytes)  
12. Far end type  
... (0.0.0.0)  
... (1)  
(E1)  
13. OAM connectivity  
14. Jitter buffer [msec][3 - 300]  
15. Sensitive  
(Disable)  
... (300)  
(Data)  
16. OOS mode  
(Tx OOS)  
(Enable)  
... (1)  
... (7)  
17. VLAN tagging  
18. VLAN ID[1 - 4095]  
19. VLAN priority[0 - 7]  
>
Please select item <1 to 19>  
F - Forward Bundle ID; ? - Help  
ESC-prev.menu; !-main menu; &-exit  
Figure 4-22. Bundle Connection Menu when Connection Mode=TDMoIP CE, PSN Type=MPLS/ETH  
Configuring the Ethernet Bridge  
IPmux-11 contains an internal bridge where one of its ports is connected to a  
TDMoIP interworking function, two external bridge ports are used as the user  
ports, and the fourth is used as an Ethernet network port.  
To configure Ethernet bridge:  
1. From the Configuration menu, select Bridge.  
The Bridge menu appears (Figure 4-23).  
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Chapter 4 Configuration  
2. From the Bridge menu, select Aging time and define a period of time in  
seconds from the moment when a node is disconnected from the network  
segment or becomes inactive and removal of the node address from the  
database.  
3. Select Erase MAC table, if you intend to delete all learned addresses from the  
MAC table.  
4. Select Bridge policy, and from the Bridge Policy menu (Figure 4-24) define the  
following:  
VLAN tagging (operation mode for the corresponding port of internal  
switch):  
Transparent  
Tag (Tagged)  
Untag (Untagged)  
DoubleTag (Double Tagged)  
Default VLAN ID (VLAN associated with untagged frames arriving at the  
port): 1–4095  
Default VLAN Priority: 0–7  
Rate limit:  
User port: Disable, 256 kbps, 512 kbps, 1 Mbps, 2 Mbps, 4 Mbps,  
8 Mbps, 16 Mbps, 32 Mbps, 64 Mbps  
Network port: Disable, 256 kbps, 512 kbps, 1 Mbps, 2 Mbps, 4 Mbps, 5  
Mbps, 8 Mbps, 10 Mbps, 16 Mbps, 20 Mbps, 25 Mbps, 40 Mbps, 50  
Mbps, 80 Mbps  
Selected rate limiting value for the user port changes available default VLAN priority  
options for this port in the following manner:  
Note  
Rate Limiting  
0–8 Mbps  
16 Mbps  
32 Mbps  
64 Mbps*  
Default VLAN Priority  
0–7  
0–7  
2–7  
4–7  
* – Since the user traffic entering the switch via ports with 64 Mbps rate limiting  
receives high priority, it may interfere with TDM traffic, which has high priority  
by default.  
5. Select VLAN table, and from the VLAN Table menu (Figure 4-25) configure the  
following:  
Channel:  
Network-Eth1  
User1-Eth2  
User2-Eth3  
VLAN ID (Specifies VLAN, which the current bridge port will be a member  
of): 1–4095  
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Status:  
Enable (Adds the current port as a VLAN member)  
Disable (Disables VLAN membership of the current port)  
Configuration>Bridge  
1. Aging time [sec] <0-Disable>[0 - 4080]  
... (304)  
2. Erase MAC table  
3. Bridge policy  
4. VLAN table  
>
[]>  
>
Please select item <1 to 4>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-23. Bridge Menu  
Configuration>Bridge>Bridge policy  
Channel  
Network-Eth1  
User1-Eth2  
User2-Eth3  
VLAN tagging  
Tag  
Transparent  
Transparent  
Default VLAN ID  
Default VLAN priority  
Rate Limit  
1
1
1
0
0
0
0-Disable  
0-Disable  
0-Disable  
1. Transparent  
2. Tag  
3. UnTag  
4. DoubleTag  
>
Please select item <1 to 4>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-24. Bridge Policy Menu  
Network channel VLANs:  
User1 channel VLANs:  
User2 channel VLANs:  
1. Channel  
> (25)  
> (101)  
> (-)  
> (Network-Eth1)  
... (1)  
2. VLAN ID[1 - 4095]  
3. Status  
(Enable)  
>
Please select item <1 to 3>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-25. VLAN Table Menu  
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Chapter 4 Configuration  
4.4 Additional Tasks  
Displaying the IPmux-11 Inventory  
The IPmux-11 inventory displays information on current software and hardware  
revisions of the unit. It also provides the IPmux-11 interface description.  
To display the IPmux-11 inventory:  
From the Main menu, select Inventory.  
Inventory  
SOFTWARE  
Boot version  
Application version  
(1.00 )  
(2.00D1 01/02/2005 16:47:18)  
Backup version  
(2.00D1 01/02/2005 16:47:18)  
HARDWARE  
Version  
MAC address  
(1.00 )  
(0020D2213FE7)  
... (N)  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-26. Inventory Screen (Page 1)  
Inventory  
... (P)  
INTERFACE  
TDM1  
(E1 over UTP)  
ETH1/Net  
(ETHERNET over Multimode LC)  
(ETHERNET over UTP)  
(ETHERNET over UTP)  
(UTP)  
ETH2/User1  
ETH3/User2  
External clock  
ESC-prev.menu; !-main menu; &-exit  
Figure 4-27. Inventory Screen (Page 2)  
1 Mngr/s  
Setting the Date and Time  
You can set the date and time for the IPmux-11 internal real-time clock.  
To set date and time:  
1. From the System menu (Figure 4-1), select Date/time.  
The Date/Time menu appears (see Figure 4-28).  
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2. From the Date/Time menu, select Set time, and enter the current time in the  
hh:mm:ss format.  
3. Select Set date, and enter the current date in the yyyy:mm:dd format.  
Configuration>System>Date/time  
1. Set time <HH:MM:SS>  
2. Set date <YYYY-MM-DD>  
... (09:12:06)  
... (2004-01-18)  
>
Please select item <1 to 2>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-28. Date/Time Menu  
Displaying the IPmux-11 Status  
The IPmux-11 software allows displaying information on the physical layer and  
bundle connections. This section describes only status information of the IPmux-11  
device. For description of IPmux-11 alarms, refer to Chapter 6.  
The status information is available via the Status menu.  
To access the Status menu:  
1. From the Main menu, select Monitoring.  
The Monitoring menu appears.  
2. From the Monitoring menu, select Status.  
The Status menu appears (see Figure 4-29).  
Monitoring>Status  
1. Diagnostics loopback  
2. TDM Physical layer  
3. ETH Physical layer  
4. Connection  
>
>
>
>
>
5. System clock  
>
Please select item <1 to 4>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-29. Status Menu  
Displaying the Diagnostics Loopback Information  
You can view the status of the diagnostics loopback.  
To display the diagnostics loopback information:  
From the Status menu, select Diagnostics loopback.  
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Monitoring>Status>Diagnostics loopback  
Channel ID  
(1)  
Loopback state:  
> (Disable)  
>
ESC-prev.menu; !-main menu; &-exit  
Figure 4-30. Diagnostics loopback Screen  
1 Mngr/s  
Displaying the TDM Physical Layer Information  
You can view the status of the TDM layer at the physical level.  
To display the TDM physical layer information:  
From the Status menu, select TDM Physical layer.  
Monitoring>Status>TDM physical layer (T1)  
Channel ID  
(1)  
Loopback state:  
> (Disable)  
>
ESC-prev.menu; !-main menu; &-exit  
Figure 4-31. TDM Physical Layer Screen  
1 Mngr/s  
Displaying the Ethernet Physical Layer Information  
You can view the status of the Ethernet connections at the physical level.  
To display the Ethernet physical layer information:  
1. From the Status menu, select ETH Physical layer.  
The Physical Layer screen is displayed (see Figure 4-32).  
2. From the Physical Layer screen, type F to toggle between the available  
Ethernet interfaces.  
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Monitoring>Status>Eth Physical layer  
Channel  
Mode  
Rate(Mbps)  
Status  
> (Network-Eth1)  
> (Full Duplex)  
> (100)  
> (Connected)  
>
F - forward  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-32. ETH Physical Layer Screen  
Displaying the Bundle Connection Information  
You can display information on the current bundle connection, its connectivity  
status, collected sequence errors, and statistics for underflows and overflows of the  
jitter buffer (see Chapter 6 for details on the bundle statistics).  
To display the bundle connection information:  
1. From the Status menu, select Connection.  
The Connection screen is displayed (see Figure 4-33).  
2. Select Bundle ID and enter the number of the bundle whose status you wish  
to display.  
The Bundle Status screen contains the following information:  
Connectivity Status:  
Disabled: No activity in the channel. The channel is disabled.  
OK: Both the remote and the local IPmux receive Ethernet frames,  
(however, there may be problems such as sequence errors, underflows,  
overflows, as explained below).  
Local Fail: The local IPmux-11 does not receive Ethernet frames.  
Remote Fail: The remote IPmux-11 does not receive Ethernet frames.  
Unavailable: The remote IPmux-11 does not reply to OAM messages  
(only applicable when OAM is enabled).  
Validation Fail: The remote IPmux-11 replies, but there is a  
configuration error (only applicable when OAM is enabled).  
Standby: Redundant bundle is OK and waiting for redundancy switching  
(only applicable when Redundancy is enabled).  
TDM Fail: There is LOS/LOF at the TDM side (only applicable when  
Redundancy is enabled).  
Note  
When the bundle connection status is Disabled, Local Fail or Remote Fail, the  
connection counters are disabled.  
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Sequence errors – total number of sequence errors occurred on the bundle  
Jitter buffer underflows – total number of jitter buffer underflows occurred  
on the bundle  
Jitter buffer overflows – total number of jitter buffer overflows occurred on  
the bundle.  
Note  
Sequence Errors, Jitter Buffer Underflows and Jitter Buffer Overflows descriptions are  
given in Chapter 6.  
Monitoring>Status>Connection  
Destination IP address:  
Next hop MAC address:  
(1.1.1.1)  
(000000000000)  
Connectivity status:  
> (OK)  
Sequence errors:  
Jitter buffer underflows:  
Jitter buffer overflows:  
(0)  
(0)  
(0)  
1. Bundle ID[1 – 1]  
... (1)  
>
R - reset counters  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-33. Connection Screen  
Displaying the System Clock Information  
You can view the status of the active system clock.  
To display the system clock status:  
From the Status menu, select System clock.  
Monitoring>Status>System clock  
Active clock  
> (Adaptive)  
> (Channel 1)  
ESC-prev.menu; !-main menu; &-exit  
Figure 4-34. System clock status screen  
Transferring Software and Configuration Files  
Software and configuration files can be transferred using TFTP.  
To transfer a file using TFTP:  
1. From the Utilities menu, select File Utilities.  
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2. From the File Utilities, select Download/Upload using TFTP.  
3. From the Download/Upload using TFTP menu, configure the following:  
File name (Name of the file that you intend to transfer)  
Command (Operation type)  
No operation  
Software download  
Software upload  
Configuration download  
Configuration upload  
Software download And reset  
Server IP (IP address of the TFTP server)  
Retry Timeout (Interval between connection retries in seconds).  
Total Timeout (TFTP connection timeout in seconds)  
View Transfer Status (Current status of the TFTP transfer)  
4. Save the changes.  
IPmux-11 starts file transfer using TFTP.  
Utilities>File Utilities>Download/upload using TFTP  
1. File name  
2. Command  
... (FILE.IMG)  
> (No operation)  
... (0.0.0.0)  
3. Server IP  
4. Retry timeout(sec)[0 - 1000] ... (1)  
5. Total timeout(sec)[0 - 1000] ... (5)  
6. View transfer status  
>
>
ESC-prev.menu; !-main menu; &-exit  
Figure 4-35. Download/Upload Using TFTP Menu  
1 Mngr/s  
Resetting IPmux-11  
IPmux-11 supports two types of reset:  
Reset to the default setting  
Resetting all parameters  
Resetting all parameters, except for management values  
Overall reset of the device.  
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Chapter 4 Configuration  
Resetting IPmux-11 to the Defaults  
You can reset IPmux-11 to its default settings. The reset to the defaults does not  
affect the master clock setting. In addition, you can reset local IPmux-11 without  
affecting its management parameters (IP address, mask and default gateway).  
To reset IPmux-11 to the default settings:  
1. From the System menu (Figure 4-1), select Factory default.  
2. From the Factory Default menu, perform one the following steps:  
Select All to reset all IPmux-11 parameters to the default settings.  
Select Except Management to reset all parameters, except for IP address,  
mask and default gateway values.  
IPmux-11 displays the following message:  
Configuration will be lost and System will be reset.  
Continue ??? (Y/N)  
3. Type Y to confirm the reset.  
IPmux-11 performs the requested type of reset.  
Alternatively, you can reset IPmux-11 to the defaults by pressing the SET DEF  
button on the rear panel.  
Resetting IPmux-11  
You can perform an overall reset of IPmux-11.  
To reset IPmux-11:  
1. From the Main menu, select Utilities.  
The Utilities menu appears (see Figure 4-36).  
2. From the Utilities menu, select Reset.  
A confirmation message appears.  
3. Type Y to confirm the reset.  
Utilities  
1. File utilities  
>
2. Reset  
>
Please select item <1 to 2>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 4-36. Utilities Menu  
IPmux-11 Ver. 2.00  
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Additional Tasks  
IPmux-11 Ver. 2.00  
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Chapter 5  
Configuring IPmux-11 for a  
Typical Application  
This chapter provides detailed instructions for setting up a typical application using  
two IPmux-11 units.  
5.1 Overview  
Application  
The section provides detailed instructions for configuring two IPmux-11 units  
operating opposite each other (see Figure 5-1).  
Figure 5-1. Two IPmux-11 Units Operating Opposite Each Other  
Guidelines for Configuring IPmux-11 Units  
There are four basic configuration steps (described below) that need to be  
followed when deploying any IPmux unit.  
1. IP Configuration – Setting the device host IP address and the manager IP address.  
2. Physical layer configuration – Setting the TDM parameters (line type, clocking,  
etc.) according to the application requirements and topology.  
3. Creating bundles – Allocating timeslots to bundles  
4. Connecting bundles – Directing the bundles defined above to remote IPmux  
unit.  
IPmux-11 Ver. 2.00  
Overview  
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Chapter 5 Configuring IPmux-11 for a Typical Application  
Installation and Operation Manual  
Table 5-1. Configuration Summary  
Device  
E1 Parameters  
IP Parameters  
Bundle  
Bundle Connection  
Parameters  
IPmux-11 (A)  
Host IP address:  
192.168.10.2  
Bundle 1  
Timeslots in  
Bundle 1 of IPmux-11 (B)  
Transmit clock source:  
adaptive  
bundle: 1–10  
Line type: Framed G.704  
CRC-4 enabled  
CAS: disabled  
IPmux-11 (B)  
Host IP address:  
192.168.10.1  
Bundle 1  
Timeslots in  
Bundle 1 of IPmux-11 (A)  
Transmit clock source:  
Loopback  
bundle: 1–10  
Line type: Framed G.704  
CRC-4 enabled  
CAS: disabled  
5.2 Configuring IPmux-11 Units  
This section explains how to configure IPmux-11 units. The configuration  
procedure is similar for both units, except for defining different host IP addresses,  
different clocking modes and different destination IP address for the bundle  
connection. Refer to Chapter 3 for explanation of how to select management  
options and save the changes.  
Configuring the IP Parameters  
To configure the host IP parameters:  
Display the Host IP menu (Configuration > System > Host IP), and configure  
the IP address and mask of the host:  
1. Disable the DHCP mechanism  
2. Save the changes  
3. Set the IPmux-11 (A) host IP address – 192.168.10.2  
4. Set the IPmux-11 (B) host IP address – 192.168.10.1  
5. Save the changes.  
Configuration>System>Host IP  
1. IP address  
2. IP mask  
... (192.168.10.2)  
... (255.255.255.0)  
... (0.0.0.0)  
(Disable)  
3. Default gateway  
4. DHCP  
5. DHCP Status  
>
>
Please select item <1 to 5>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 5-2. Configuring Host IP Parameters for IPmux-11 (A)  
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Chapter 5 Configuring IPmux-11 for a Typical Application  
To configure the manager list:  
1. Display the Manager List menu (Configuration > System > Management >  
Manager list), and enter IP parameters for the network manager station:  
NMS IP address – 192.168.10.100  
Manager location – Network-Eth1.  
2. Save the changes.  
Configuration>System>Management>Manager list  
1. Manager IP address  
2. Manager location  
3. Link up/down trap  
4. Alarm trap  
... (192.168.10.100)  
> (Network-Eth1)  
(Disable)  
(Disable)  
5. VLAN tagging  
(Disable)  
>
Please select item <1 to 5>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 5-3. Configuring Network Manager  
Configuring E1 Parameters at the Physical Layer  
To configure E1 parameters at the physical layer:  
1. Display the TDM (E1) Configuration menu (Configuration > Physical layer >  
TDM (E1)), and configure the following parameters:  
IPmux-11 (B) transmit clock source – Loopback  
IPmux-11 (A) transmit clock source – Adaptive  
Line type – Framed G.704 CRC.  
2. Save the changes.  
Configuration>Physical layer>TDM (E1)  
Channel ID  
(1)  
Restoration time  
Signaling mode  
>(CCITT)  
(CAS Disabled)  
1. Admin status  
(Enable)  
2. Transmit clock source  
3. Rx sensitivity  
4. Trail mode  
>(Adaptive)  
(Short haul)  
(Termination)  
>(Framed G.704 CRC)  
... (7E)  
5. Line type  
6. Idle code[0 - ff]  
7. Send upon fail  
(OOS Code)  
(FF)  
8. OOS Code[0 - ff]  
(N)  
>
Please select item <1 to 11>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 5-4. Configuring E1 at the Physical Level for IPmux-11 (A)  
IPmux-11 Ver. 2.00  
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Chapter 5 Configuring IPmux-11 for a Typical Application  
Installation and Operation Manual  
Configuring Bundles  
To assign timeslots to a bundle:  
1. Display the Connection menu (Configuration > Connection), and assign a  
number 1 to a bundle.  
2. Display the DS0 Bundle Configuration menu (Configuration > Connection >  
DS0 bundle), and assign timeslots 1 to 10 to bundle 1.  
Configuration>Connection>DS0 bundle configuration  
+1  
TS 0 1  
+2  
1
+3  
1
+4  
1
+5  
1
+6  
1
+7  
1
+8  
1
+9  
1
+10  
1
TS 10 0  
TS 20 0  
TS 30 0  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1. Change cell [0 - 1]  
>
... (0)  
Please select item <1 to 1>  
E - Enable All; L - Disable All  
ESC-prev.menu; !-main menu; &-exit; ?-help  
1 Mngr/s  
Figure 5-5. Assigning Timeslots to a Bundle  
To connect the bundles:  
1. Display the Bundle Connection Configuration menu (Configuration >  
Connection > Bundle connection) and configure the following parameters:  
Destination IP address for IPmux-11 (A) bundle –192.168.10.1  
Destination IP address for IPmux-11 (B) bundle – 192.168.10.2  
Connection status – Enable  
Destination bundle – 1  
Jitter buffer – 5 msec  
OAM Enabled.  
2. Leave all other parameters with their default values.  
3. Save the changes.  
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Chapter 5 Configuring IPmux-11 for a Typical Application  
Configuration>Connection>Bundle connection  
1. Destination IP address  
2. Next hop  
... (192.168.10.1)  
... (0.0.0.0)  
... (0)  
3. IP TOS  
4. Connection status  
5. Destination bundle [1 - 496]  
6. TDM bytes in frame(x48 bytes)  
7. Payload format  
(Enable)  
... (1)  
... (1)  
(V2)  
8. OAM connectivity  
(Enable)  
... (5)  
9. Jitter buffer<msec>[3 – 300]  
10.VLAN tagging  
(Disable)  
>
Please select item <1 to 10>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 5-6. Connecting the Bundle for IPmux-11 (A)  
IPmux-11 Ver. 2.00  
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Installation and Operation Manual  
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Chapter 6  
Troubleshooting and  
Diagnostics  
This chapter describes how to:  
Monitor performance  
Detect errors  
Handle alarms  
Troubleshoot problems  
Perform diagnostic tests.  
6.1 Monitoring Performance  
IPmux-11 provides powerful performance monitoring tools, which consist of the  
following three levels:  
E1/T1 statistics – Status of the physical E1/T1 parameters (signal, framing, etc.)  
LAN statistics – Ethernet connection status (speed, duplex mode, bytes  
transmitted & received, etc.)  
Bundle connection statistics – TDMoIP bundle connection status on the  
Ethernet/IP network level.  
Displaying E1/T1 Statistics  
E1/T1 statistics refer to the physical status of the E1/T1 traffic reaching IPmux-11  
from the adjacent E1/T1 device.  
The E1 statistics parameters comply with the G.703, G.704, G.804, G.706, G.732,  
and G.823 standards.  
The T1 statistics parameters comply with the ANSI T.403, AT&T R62411, G.703,  
G.704 and G.804 standards.  
E1/T1 statistics are monitored and saved under consecutive intervals. Each interval  
is 15 minutes long. There are 96 intervals, which represent the last 24 hours.  
Whenever a new interval is started, the counters are reset to zero. The old interval  
shows the total of events that occurred during its 15-minute period.  
The current active interval is always marked as interval 0 (you will see that the  
Time Since counter is running). The previous interval is marked as 1 and so on.  
The E1/T1 statistic counters cannot be reset manually.  
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Chapter 6 Troubleshooting and Diagnostics  
Installation and Operation Manual  
To view the E1/T1 statistics:  
1. From the Monitoring menu (Figure 6-6), select Statistics.  
The Statistics menu appears.  
2. From the Statistics menu, select Physical Layer.  
The Physical Layer (E1) or Physical Layer (T1) screen appears  
(see Figure 6-1).  
3. Select Interval, enter the number of the interval whose statistics you wish to  
display, and press Enter  
or  
Type < (Shift+.) to scroll backward or > (Shift+,) to scroll forward through  
the available intervals.  
Monitoring>Statistics>Physical layer (E1)  
Channel ID  
LOS:  
(1)  
(0)  
(0)  
(0)  
(0)  
(0)  
(0)  
(0)  
DM:  
(0)  
(0)  
(0)  
(0)  
(0)  
LOF (Red):  
LCV:  
ES:  
SES:  
UAS:  
LOMF:  
RAI (Yellow):  
AIS:  
FEBE:  
BES:  
Time Since (sec):  
(366)  
Valid Intervals:  
(96)  
1. Interval  
... (0)  
>
< - Prev Interval; > - Next Interval  
ESC-prev.menu; !-main menu; &-exit  
2 Mngr/s  
Figure 6-1. E1/T1 Statistics  
6-2  
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Chapter 6 Troubleshooting and Diagnostics  
Table 6-1. E1/T1 Statistics  
Alarm  
Description  
LOS  
Number of seconds with Loss of Signal. A Loss of Signal indicates that there is either no signal arriving  
from the adjacent E1/T1 device or no valid E1 voltage mask or no voltage alteration between positive  
and negative amplitudes.  
For E1 links, the LOS counter will increase by one for each second during which a consecutive  
255 pulses have no pulse of negative or positive polarity.  
For T1 links, the LOS counter will increase by one for each second during which a consecutive  
192 pulses have no pulse of negative or positive polarity.  
A LOS alarm is also indicated by the front panel E1/T1 SYNC LED (red). The green E1/T1 SYNC LED  
indicates that the E1/T1 synchronization has been restored).  
Recommendations:  
Check the physical layer (connectors, cables, etc.)  
LOF (Red)  
Number of seconds with Loss of Frame. A Loss of Frame indicates a second that IPmux-11 lost E1/T1  
synch opposite its adjacent E1/T1 device.  
In more detail, this is a period of 2.5 seconds for T1 or 100 msec for E1, during which an OOF (Out Of  
Frame) error persisted and no AIS errors were detected.  
For E1 links an OOF defect is declared when three consecutive frame alignment signals have been  
received with an error.  
For T1 links, an OOF defect is declared when the receiver detects two or more framing errors within a  
three msec period for ESF signals and 0.75 msec for D4 signals, or two or more errors out of five or  
fewer consecutive framing-bits.  
A LOF alarm is also indicated by the front panel E1/T1 SYNC LED (red).  
When the IPmux enters a red alarm condition, it sends an Yf bit (yellow alarm or RAI) towards the  
adjacent E1/T1 device.  
Recommendations:  
Check all framing related parameters for E1/T1, and physical connections.  
LCV  
Number of seconds with Line Code Violations. A Line Code Violation indicates an error on the pulse  
structure, either a Bipolar Violation (BPV) or an Excessive Zeros (EXZ) error event.  
BPV is the occurrence of a pulse with the same polarity as the previous pulse.  
EXZ is the occurrence of a zero string greater than 15 for AMI or 7 for B8ZS.  
For an E1 link, the LCV counter will increase by one, for each second during which a BPV or EXZ errors  
have occurred.  
For T1 links, the LCV counter will increase for each second during which two consecutive BPVs of the  
same polarity are received.  
Complies with ITU-TI.431, 0.161, G775 and G.821 standards.  
Recommendations:  
Check physical link for bad/loose connection, impedance matching (balanced or unbalanced) and noisy  
environment.  
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Table 6-1. E1/T1 Statistics (Cont.)  
RAI (Yellow)  
Number of seconds with Remote Alarm Indicators. A Remote Alarm Indicator is sent by a device when  
it enters RED state (loses sync).  
RAI Alarm indicates that the adjacent E1/T1 device had lost E1/T1 synch and hence sent an RAI  
towards the IPmux, which entered a Yellow alarm mode (similarly, IPmux sends RAI towards adjacent  
E1/T1 when IPmux enters LOF state (Red alarm).  
In both E1/T1 links the RAI counter increases by one for each second during which an RAI pattern is  
received from the far end framer.  
The RAI alarm is also indicated by the front panel ALM LED (red).  
Recommendations:  
Check reason for E1/T1 device to be in LOF (out of synch state) by checking physical link integrity at  
the Tx direction of the IPmux towards E1/T1 device and framing related parameters.  
AIS  
Number of seconds with Alarm Indication Signals. An Alarm Indication Signal implies an upstream  
failure of the adjacent E1/T1 device. AIS will be sent to the opposite direction of which the Yellow  
alarm is sent.  
For E1 links, the AIS counter will increase by one for each second during which a string of 512 bits  
contains fewer than three zero (0) bits.  
For T1 links, the AIS counter will increase by one for each second during which an unframed “all 1”  
signal is received for 3 msec.  
The AIS condition is indicated by the front panel E1/T1 SYNC LED (red).  
Recommendations:  
Check why the E1/T1 device is sending AIS (all ones) stream towards IPmux, for example, Red alarm on  
a different interface of E1/T1 device (upstream).  
FEBE  
Number of seconds with Far End Block Errors. The FEBE is sent to transmitting device notifying that a  
flawed block has been detected at the receiving device. Exists only for E1 MF-CRC4. The FEBE alarm is  
also indicated by the front panel ALM LED (red).  
The FEBE counter will increase by one for each second during which the FEBE indication is received.  
Recommendation:  
Check physical link integrity.  
BES  
Bursty Errored Seconds (also known as Errored seconds type B) are seconds during which fewer than  
319 and more than one CRC errors occurred with neither AIS nor SEF (Severely Errored Frames)  
detected. The BES counter will increase by one for each second containing the condition described  
above. The CRC is calculated for the previous frame in order to prevent processing delay.  
Complies with AT&T TR-62411 and TR-54016 standards. Not applicable if the line type is set to  
Unframed. Available only at T1-ESF or E1-CRC4 modes (performance monitoring functionality).  
Recommendations:  
Check physical link integrity, G.704 frame format integrity and Sync. (The CRC bits are included in TS0  
for E1 multiframe links and in the frame alignment bits for T1 ESF links).  
DM  
A Degraded Minute is calculated by collecting all the available seconds, subtracting any SES and sorting  
the result in 60-second groups.  
The DM counter will increase by one for each 60-second group in which the cumulative errors during  
the 60-second interval exceed 1E-6.  
Available in T1-ESF or E1-CRC4 modes only, (performance monitoring functionality).  
Recommendations:  
See BES recommendations.  
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Table 6-1. E1/T1 Statistics (Cont.)  
Alarm  
Description  
ES  
An Errored Second is a second containing one or more of the following:  
CRC error  
SEF (OOF)  
AIS (T1 only)  
If SES is active ES runs for 10 seconds and then stops.  
Recommendations:  
Check physical link integrity. Follow the recommendation concerning LOF, BEF and AIS.  
SES  
A Severely Errored Second is a second containing one of the following:  
320 or more CRC errors events  
One or more OOF defect  
One or more AIS events occurred (T1 only)  
The SES counter will be cleared after reaching 10 and an UAS will then be activated.  
Recommendations:  
Check physical link integrity. See also ES alarm recommendation.  
UAS  
Unavailable Second parameter refers to the number of seconds during which the interface is  
unavailable. The UAS counter will start increasing after 10 consecutive SES occurrences and will be  
deactivated as a result of 10 consecutive seconds without SES. After SES clearance the UAS counter will  
then diminish 10 seconds from the overall count.  
Recommendations:  
See above recommendations.  
LOMF  
Number of seconds of Loss of Multi Frame. A Loss of Multi Frame indicates a second with no sync on  
the multi frame mode, i.e., the receiving device is unable to detect the four ABCD bits pattern on. The  
LOMF alarm is also indicated by the front panel ALM LED (red). TS16 MSB in frame 0 for two  
consecutive multiframes. Available only for E1 multiframe mode (CAS).  
Recommendations:  
Check physical link integrity, signaling method (CAS enable only), and framing-related parameters.  
Displaying LAN Statistics  
You can display statistic data for the network and user Ethernet ports.  
To view the LAN statistics:  
1. From the Statistics menu, select Bridge.  
The Bridge screen appears (see Figure 6-2).  
2. From the Bridge screen, type F to toggle between network and user interfaces.  
Table 6-2 describes the LAN statistics data.  
3. Type R to reset the counters.  
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Monitoring>Statistics>Bridge  
Channel  
> (User1-Eth2)  
Frames Received  
Total Frames:  
Total Octets:  
Oversize Frames  
Fragments:  
Frames Transmitted  
(0)  
(0)  
(0)  
(0)  
(0)  
(0)  
(0)  
Correct Frames:  
Correct Octets:  
Collisions:  
(0)  
(0)  
(0)  
Jabber:  
Dropped Frames:  
CRC Errors:  
>
F - forward; R - reset counters  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 6-2. LAN Statistics  
Table 6-2. LAN Statistics Parameters  
Parameter  
Description  
Frames Received  
Total Frames  
The total number of correct frames received. When a valid connection is established the number  
should increase steadily.  
Total Octets  
The total number of octets (bytes) received. When a valid connection is established the number should  
increase steadily.  
Oversize  
Frames  
Number of frames exceeding the maximum allowed frame size, but are otherwise valid Ethernet frames  
(good CRC).  
Fragments  
Jabber  
The number of frames that are shorter than 64 bytes and have an invalid CRC.  
The number of frames that are too long and have an invalid CRC.  
A jabber is transmission by a data station beyond the time interval allowed by the protocol, usually  
affecting the rest of the network. In an Ethernet network, devices compete for use of the line,  
attempting to send a signal and then retrying in the event that someone else tried at the same time. A  
jabber can look like a device that is always sending, effectively bringing the network to a halt.  
Recommendations  
Check network interface card or any other transmitting devices and external electrical interference.  
Dropped  
Frames  
Number of dropped frames due to delivery problems.  
Recommendations:  
Check the network interface card.  
CRC Errors  
The amount of frames with invalid CRCs.  
Frames Transmitted  
Correct Frames  
Correct Octets  
Collisions  
The number of frames successfully transmitted. When a valid connection is established the number  
should increase steadily.  
The number of octets successfully transmitted. When a valid connection is established the number  
should increase steadily.  
The number of successfully transmitted frames which transmission is inhibited by a collision event. A  
collision occurs in half-duplex connection when two devices try to transmit at the same time. This  
counter tracks the number of times frames have collided. This event exists only in half duplex mode,  
which is not recommended in an IPmux-11 application.  
Recommendations:  
Many collisions indicate that the traffic is too heavy for a half duplex media. Set to a full duplex  
environment if possible.  
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Chapter 6 Troubleshooting and Diagnostics  
Displaying Bundle Connection Statistics  
The Connection screen provides information about the integrity of the TDMoIP  
connection, including the jitter buffer statistics. (Each bundle has it own  
independent jitter buffer).  
To display the bundle connection information:  
1. From the Monitoring menu, select Statistics.  
The Statistics menu appears.  
2. From the Statistics menu, select Connection.  
The Connection screen is displayed (see Figure 6-3).  
3. Select Bundle ID, enter the number of the bundle whose statistics you wish to  
display, and press Enter.  
4. Select Interval, enter the number of the interval whose statistics you wish to  
display, and press Enter.  
or  
Type < (Shift+.) to scroll backward or > (Shift+,) to scroll forward through  
the available intervals.  
Monitoring>Statistics>Connection  
Sequence errors:  
... (0)  
... (580)  
... (0)  
... (5)  
Jitter buffer underflows:  
Jitter buffer overflows:  
Max Jitter buffer deviation [msec]:  
Time since [sec]:  
(580)  
1. Bundle ID[1 - 128]  
2. Interval  
... (33)  
... (0)  
>
F - Forward Bundle ID; < - Prev Interval; > - Next Interval  
ESC-prev.menu; !-main menu; &-exit  
2 Mngr/s  
Figure 6-3. Connection Statistics Screen  
IPmux-11 Ver. 2.00  
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Table 6-2. Bundle Connection Parameters  
Parameter  
Description  
Sequence  
Errors  
The number of seconds with at least one sequence error since the last clear.  
Each packet transmitted by IPmux-11 holds a sequence number. The receiving IPmux-11 checks these  
numbers at the receive mechanism and expects to see that each new incoming packet is “in sequence”  
relative to the previous one (i.e., packet no. 5 is received after no. 4). When, for some reason, this is  
not the case (i.e., next packet is not in sequence relative to the previous one), this means that there had  
been a problem with packet flow integrity (and hence data/voice integrity). IPmux will indicate this by  
increasing the “Sequence Errors” counter by one.  
There may be two reasons for a Sequence Error notification:  
Packet or packets are lost somewhere along the network.  
Re-ordering of packets by network.  
Packet re-ordering may occur due to queuing mechanisms, re-routing by the network, or when the  
router updates very large routing tables.  
Recommendations:  
Make sure IPmux-11 traffic has sufficient bandwidth. See Chapter 1 for throughput calculation.  
Make sure Ethernet connection is functioning properly. (See Displaying LAN Statistics on page 6-5.)  
Make sure Ethernet/IP network provides priority (Quality Of Service) to the IPmux traffic. Priority  
may be achieved by three means: VLAN tagging, IP TOS marking or by using the constant 2142  
decimal value at the “UDP destination Port” field of each TDMoIP packet.  
Verify that the IP network devices (switches/routers/modems/etc.) are capable of handling the IPmux  
PPS rate (Packets Per Second).  
Make sure the network devices do not drop/lose/ignore packets.  
Note: IPmux-11 may support a “reordering mechanism”, which can sort packets back to their original  
order in some situations.  
6-8  
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Chapter 6 Troubleshooting and Diagnostics  
Table 6-2. Bundle Connection Parameters (Cont.)  
Parameter  
Description  
Jitter Buffer  
Underflows  
The number of seconds with at least one jitter buffer underflow event since the last clear.  
IPmux-11 is equipped with a “Packet Delay Variation Tolerance” buffer, also called a “jitter buffer”,  
responsible for compensating for IP networks delay variation (IP jitter). The jitter buffer is configured in  
milliseconds units and exists for each bundle independently.  
Explanation:  
Packets leave the transmitting IPmux-11 at a constant rate, but the problem is that they are reaching the  
opposite IPmux-11 at a rate which is NOT constant, due to network delay variation (caused by  
congestion, re-routing, queuing mechanisms, wireless media, half-duplex media, etc.). The TDM  
devices at both ends require a constant flow of data, so they can’t tolerate delay variation. Therefore  
the jitter buffer is required in order to provide the TDM equipment with a synchronous and constant  
flow.  
This is done as follows:  
Upon startup, the jitter buffer stores packets up to its middle point (the number of packets correlates  
to the buffer’s configured depth in milliseconds). Only after that point it starts outputting the E1/T1  
flow towards its adjacent TDM device. The stored packets assure that the TDM device will be fed  
with data even if packets are delayed by the IP network. Obviously, if packets are delayed too long,  
then the buffer is gradually emptied out until it is underflowed. This situation is called buffer  
starvation. Each underflow event increases the jitter buffer underflow counter by one and indicates a  
problem in the end-to-end voice/data integrity.  
The second functionality of the jitter buffer is that in adaptive mode the jitter buffer is also a part of a  
mechanism being used to reconstruct the clock of the far end TDM side.  
An underflow situation can be a cause of:  
Buffer starvation: Packets delay variation causes the buffer to empty out gradually until it is  
underflowed.  
Continuous Sequence Errors. The sequence error means a halt in the valid stream of packet arrival  
into the jitter buffer.  
Packets are being stopped/lost/dropped.  
Too small jitter buffer configuration that can’t compensate for the network delay variation.  
When all system elements are not locked on the same master clock, it will lead to a situation in  
which data is clocked out of the jitter buffer at a rate different from the one it is clocked into. This  
will gradually result in either an overflow or underflow event, depending on which rate is higher.  
The event will repeat itself periodically as long as the system clock is not locked.  
When an overflow (see below) situation occurs, IPmux-11 instantly flushes the jitter buffer, causing a  
forced underflow. So when you need to calculate the real underflow events and not the self-initiated  
ones, subtract the number of overflows from the total number of underflows counted by the device.  
Recommendations:  
Try increasing the jitter buffer size.  
Check reasons for sequence errors or lost/dropped packets (if present), system clocking  
configuration, Ethernet environment (full duplex) and connection, packets drop/loss/ignore by  
routers/switches or non-uniform packets output by routers/switches due to queuing mechanisms.  
Make sure the same amount of TS for bundle is configured on each side of the IPmux-11  
application, and that the “TDM bytes in frame” parameter is identical in both IPmux-11 units.  
Make sure Ethernet/IP network provides priority (Quality Of Service) to the IPmux-11 traffic. Priority  
may be achieved by three means: VLAN tagging, IP TOS marking or by using the constant 2142  
decimal value at each IPmux “UDP destination Port” field.  
IPmux-11 Ver. 2.00  
Monitoring Performance  
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Chapter 6 Troubleshooting and Diagnostics  
Installation and Operation Manual  
Table 6-2. Bundle Connection Parameters (Cont.)  
Parameter  
Description  
Jitter Buffer  
Overflows  
The number of seconds with at least one jitter buffer overflow event since the last clear.  
Explanation:  
In steady state, the jitter buffer is filled up to its middle point, which means it has the space to hold an  
additional similar quantity of packets. Overflow is opposite phenomenon of the Underflow, i.e., when  
a big burst of packets reaches the IPmux (a burst with more packets than the Jitter Buffer can store), the  
buffer will be filled up to its top. In this case, an unknown number of excessive packets are dropped  
and hence IPmux initiates a forced underflow by flushing (emptying) the buffer in order to start fresh  
from the beginning. An overflow situation always results in an immediate Underflow, forced by the  
IPmux. After the buffer is flushed, the process of filling up the buffer is started again, as explained above  
(“Underflow” section).  
An overflow situation can be a cause of:  
A big burst of packets, filling up the buffer completely. The burst itself can often be a cause of some  
element along the IP network queuing the packets and then transmitting them all at once.  
Too small jitter buffer configuration.  
When system isn’t locked on the same clock, it will lead to a situation in which data is clocked out  
of the jitter buffer at a rate different from the one it is clocked into. This will gradually result in either  
an overflow or underflow event, depending on which rate is higher. The event will repeat itself  
periodically as long as the system clock is not locked.  
Recommendations:  
Check network devices and try increasing jitter buffer configuration.  
Check system’s clocking configuration  
Make sure the same amount of TS for bundle is configured on each side of the IPmux-11  
application, and that the “TDM bytes in frame” parameter is identical in both IPmux-11 units  
Max Jitter  
Buffer  
The maximum jitter buffer deviation (msec) in the interval (300 sec). This is the maximum jitter level  
IPmux-11 had to compensate for in the selected interval.  
Deviation  
Time Since  
(sec)  
The time elapsed, in seconds, since the beginning of the selected interval.  
6.2 Detecting Errors  
Power-Up Self-Test  
IPmux-11 performs hardware self-test upon turn-on. The self-test sequence checks  
the critical circuit functions of IPmux-11 (framer and bridge). The self-test results  
are displayed via the Diagnostics menu.  
To display the self-test results:  
1. From the Main menu, select Diagnostics.  
The Diagnostics menu appears (see Figure 6-4).  
2. From the Diagnostics menu, select Self Test Results.  
The Self Test Results screen appears (see Figure 6-5).  
6-10  
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Chapter 6 Troubleshooting and Diagnostics  
Diagnostics  
1. Ping  
>
>
>
2. Loopback  
3. Trace route  
4. Self Test Results >  
>
Please select item <1 to 4>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 6-4. Diagnostics Menu  
Diagnostics>Self Test Results  
1. Framer Test (Pass)  
2. Bridge Test (Pass)  
>
Please select item <1 to 2>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 6-5. Self Test Results Screen  
Using Front Panel LEDs  
LED indicators on the front panel IPmux-11 indicate the operating status of the  
module. The LED indicators are described in Chapter 3 of this manual.  
Working with the Event Log  
IPmux-11 maintains an Event Log file, which can hold up to 2048 events. All  
events are time-stamped.  
Displaying Events  
To access the event log:  
1. From the Main menu, select Monitoring.  
The Monitoring menu is displayed (see Figure 6-6).  
2. From the Monitoring menu, select Event Log.  
The Event Log menu is displayed (see Figure 6-7).  
3. From the Event Log menu, select Read log file.  
The Read Log File screen appears (see Figure 6-8).  
4. In the Read Log File screen, use the <Ctrl> + <U> and <Ctrl> + <D>  
key combinations to scroll the alarm list up and down.  
IPmux-11 Ver. 2.00  
Detecting Errors  
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Chapter 6 Troubleshooting and Diagnostics  
Installation and Operation Manual  
Monitoring  
1. Statistics  
2. Status  
>
>
>
3. Event Log  
>
Please select item <1 to 3>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 6-6. Monitoring Menu  
Monitoring>Event log  
1. Read log file  
2. Clear log file  
[]  
3. Update bundle connection events  
(Every 1 min)  
4. Bundle connection events threshold[1 - 100] ... (5)  
>
Please select item <1 to 4>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 6-7. Event Log Menu  
Monitoring>Event Log>Read log file  
Index  
Log entry  
30 2004-01-22 18:20:03 LOGIN VIA TERMINAL  
29 2004-01-22 18:02:13 UAS START  
28 2004-01-22 18:02:03 LOS START  
27 2004-01-22 18:02:03 COLD START  
26 2004-01-22 17:56:48 UAS START  
25 2004-01-22 17:56:38 LOS START  
24 2004-01-22 17:56:38 COLD START  
TDM SLOT CH 1  
TDM SLOT CH 1  
TDM SLOT CH 1  
TDM SLOT CH 1  
>
^D - scroll down, ^U - scroll up  
ESC-prev.menu; !-main menu; &-exit; ?-help  
1 Mngr/s  
Figure 6-8. Read Log File  
Table 6-3 presents the event types that appear in the event log alphabetically, as  
well as the actions required to correct the event (alarm) indication.  
To correct the reported problem, perform corrective actions in the given order  
until the problem is corrected. If the problem cannot be fixed by carrying out the  
listed actions, IPmux-11 must be checked by the authorized technical support  
personnel.  
6-12  
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Chapter 6 Troubleshooting and Diagnostics  
Table 6-3. Event List  
Event  
Description  
Corrective Action  
None  
COLD START  
CON LOCAL FAIL  
IPmux-11 has been powered up  
Ethernet frames are not received by the local  
IPmux-11 on the specified connection  
Check Eth/IP path  
CON REMOTE FAIL  
CON STANDBY  
Ethernet frames are not received by the remote Check Eth/IP path  
IPmux-11 on the specified connection  
Redundancy bundle connection is not the  
active connection (only applies when  
redundancy is used)  
None  
CON TDM FAIL  
LOS/LOF on the TDM line forced redundancy  
switching (only applies when redundancy is  
used)  
Check the TDM line  
None  
CON SYNC  
Bundle connection failure has ended (only  
applicable when OAM is Enabled)  
CON UNAVAILABLE  
CON VALIDATION FAIL  
FATAL ERROR  
Remote IPmux is not available (only applicable  
when OAM is Enabled)  
Check the connection of the remote  
IPmux  
Connection is invalid (only applicable when  
OAM is Enabled)  
Check the bundle parameters  
The IPmux-11 requires servicing  
None  
IPmux-11 has encountered an internal fatal  
error  
INVALID LOGIN VIA  
TERMINAL  
Invalid user name or password was entered,  
when attempting to access IPmux-11 via local  
terminal  
INVALID LOGIN VIA WEB  
Invalid user name or password was entered,  
when attempting to access IPmux-11 via Web  
browser  
None  
INVALID LOGIN VIA  
TELNET  
Invalid user name or password was entered,  
when attempting to access IPmux-11 via Telnet  
None  
None  
None  
IP x.x.x.x ASSIGNED BY  
SERVER x.x.x.x  
The current IP address was assigned the  
IPmux-11 host by DHCP server  
IP x.x.x.x IS RELEASED  
The current IP address was released by  
IPmux-11  
JIT BUF OFLOWS END  
BUNDLE 1  
Jitter Buffer Overflows END  
below)  
JIT BUF OFLOWS START  
BUNDLE 1  
Jitter Buffer Overflows START  
below)  
Increase jitter buffer size  
JIT BUF UFLOWS END  
BUNDLE 1  
Jitter Buffer Underflows END  
below)  
JIT BUF UFLOWS START  
BUNDLE 1  
Jitter Buffer Underflows START  
below)  
Increase jitter buffer size  
IPmux-11 Ver. 2.00  
Detecting Errors  
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Table 6-3. Event List (Cont.)  
Event  
Description  
Corrective Action  
LINE AIS END  
LINE AIS START  
Line AIS state detected has ended  
None  
IPmux-11 has AIS (alarm indicator signal) state  
on its E1/T1 port  
Check for a fault at the PDH network,  
on the receive direction  
LINE FEBE END  
LINE FEBE state detected has ended  
None  
LINE FEBE START  
IPmux-11 has LINE FEBE state on its E1/T1 port Check for errors in the E1/T1  
connection on the transmit direction  
LINE RAI END  
LINE RAI state detected has ended  
None  
LINE RAI START  
IPmux-11 has LINE RAI (remote alarm  
indication) state on its E1/T1 port  
Check for a fault at the E1/T1  
connectivity on the transmit direction  
LOGIN VIA TERMINAL  
LOGIN VIA WEB  
LOGIN VIA TELNET  
LOF START  
The unit was accessed via local terminal  
The unit was accessed via Web browser  
The unit was accessed via Telnet  
None  
None  
None  
IPmux-11 has a LOF (loss of frame) state  
on its E1/T1 port  
1. Check the E1/T1 cable connection  
2. Check all framing-related  
parameters for E1/T1 interface  
LOF END  
LOS END  
LOF state detected has ended  
LOS state detected has ended  
None  
None  
LOS START  
IPmux-11 has a LOS (loss of signal) state on its  
E1/T1 port  
1. Check the E1/T1 cable connection  
2. Check input signal  
PS ACTIVE  
IPmux-11 power supply unit is powered on  
None  
SN ERRORS END  
BUNDLE 1  
Sequence Number ERRORS END  
below)  
SN ERRORS START  
BUNDLE 1  
Sequence Number ERRORS START  
below)  
Check the Ethernet/IP network  
Increase jitter buffer size  
SYSTEM USER RESET  
UAS START  
The user initiated software reset via the system  
menu  
None  
Ten consecutive severely errored seconds were  
detected  
Check physical interface connections.  
UAS END  
Ten consecutive seconds without SES were  
detected  
Clearing Events  
To clear the event log:  
1. From the Event Log menu, select Clear log file.  
IPmux-11 displays the following message:  
Logfile will be cleared. Continue ??? (Y/N)  
2. Type Y to confirm the log file clearing.  
6-14  
Detecting Errors  
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Chapter 6 Troubleshooting and Diagnostics  
Configuring the Bundle Statistics Collection  
You can set the interval for the bundle statistics collection, as well the statistics  
threshold.  
To configure the bundle statistic collection:  
From the Event Log menu (Figure 6-7), configure the following:  
Update bundle connection events: 1 sec, 1 min  
Bundle connection events threshold (a number of events that cause the  
alarm to be initiated): 1100.  
6.3 Handling Alarms  
Masking Alarms  
You can mask any IPmux-11 alarm to prevent it from being reported to the  
management stations.  
To mask alarms:  
1. From the Management menu, select Alarm trap mask.  
The Alarm Trap Mask menu appears (see Figure 6-9).  
2. From the Alarm Traps Mask menu, select Alarm ID to choose alarm that you  
intend to mask:  
alarmLOS  
alarmLOF  
alarmAIS  
alarmRDI  
alarmFEBE  
alarmExtClk  
bundleConnectionStatus.  
List of the alarm traps can be displayed by typing H.  
Note  
3. Select Trap Status to enable or disable masking of the selected alarm.  
Configuration>System>Management>Alarm trap mask  
Active alarm traps:  
> (-)  
... (39)  
(Masked)  
1. Alarm ID <use 'help'>[1 - 40]  
2. Trap status  
>
Please select item <1 to 2>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 6-9. Alarm Trap Mask Menu  
IPmux-11 Ver. 2.00  
Handling Alarms  
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Chapter 6 Troubleshooting and Diagnostics  
Installation and Operation Manual  
6.4 Troubleshooting  
The following table presents the event types as they appear on the Event Log File  
and lists the actions required to correct the event (alarm) indication.  
Table 6-4. IPmux-11 Troubleshooting Chart  
Fault  
Probable Cause  
Remedial Action  
E1/T1 equipment  
connected to IPmux-11 is  
not synchronized with  
IPmux-11.  
Configuration or physical layer  
problems  
1. Check cables and physical  
connectivity.  
2. Check IPmux-11 E1/T1  
configuration and, if necessary,  
other IPmux-11 parameters.  
3. Check E1/T1 physical connection  
(use loopbacks).  
Slips and errors in E1/T1  
equipment  
1. Check E1/T1 physical connection  
(use loopbacks).  
Ethernet port in switch and  
IPmux-11 are not in the same  
rate or duplex mode  
2. Check timing settings according to  
explanation in this manual.  
Ethernet port is set to work in  
half duplex mode (may cause  
extreme PDV because of  
3. Check switch and IPmux-11 port  
configuration (negotiation, rate,  
duplex mode).  
collisions and backoffs)  
Timing configuration is not  
properly set (periodic buffer  
under/overflows shown on IP  
channel status menu)  
4. Check PDV introduced by the  
network, and, if necessary, increase  
PDVT jitter buffer setting..  
Network PDV or lost frames  
Echo in voice  
High delay in voice path  
1. Check network delay and try to  
decrease it.  
2. Try to decrease PDVT (jitter) buffer.  
6-16  
Troubleshooting  
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Chapter 6 Troubleshooting and Diagnostics  
6.5 Testing IPmux-11  
Diagnostic capabilities of IPmux-11 include:  
External loopbacks  
Inband remote loopbacks for T1 lines  
Internal loopbacks  
Pinging IP hosts  
Running a trace route.  
Running Loopbacks  
Running External Loopback  
IPmux-11 can be set to start an external loopback to test the connection between  
the E1/T1 port and the PBX. In this mode, data coming from the PBX is both  
looped back to the PBX and transmitted forward to the IP network  
(see Figure 6-10).  
Figure 6-10. External Loopback  
Running Internal Loopback  
The E1/T1 module can be set to start an internal loopback to test the connection  
between the E1/T1 port and the IP network. In this mode, data coming from the IP  
network is both looped back to the IP network and transmitted forward to the PBX  
connected to the E1/T1 port (see Figure 6-11).  
Figure 6-11. Internal Loopback  
IPmux-11 Ver. 2.00  
Testing IPmux-11  
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Installation and Operation Manual  
To run a loopback:  
1. From the Diagnostics menu (Figure 6-4), select Loopback.  
The Loopback menu is displayed (see Figure 6-12).  
2. From the Loopback menu, type F to select the E1/T1 link that you intend to  
test.  
3. From the Loopback menu, select Loopback state, and choose loopback that  
you intend to run (Internal or External).  
Diagnostics>Loopback  
Channel ID  
(1)  
1. Loopback State  
> (External)  
>
F - Forward  
Please select item <1 to 1>  
ESC-prev.menu; !-main menu; &-exit  
Figure 6-12. Loopback Menu  
1 Mngr/s  
To disable a loopback:  
From the Loopback menu, select Loopback state, and set it to Disable.  
To display the diagnostic loopback status:  
From the Status menu, select Diagnostics loopback.  
Monitoring>Status>Diagnostics loopback  
Channel ID  
(1)  
Loopback state:  
> (Disable)  
>
ESC-prev.menu; !-main menu; &-exit  
Figure 6-13. Diagnostic Loopback Screen  
1 Mngr/s  
6-18  
Testing IPmux-11  
IPmux-11 Ver. 2.00  
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Chapter 6 Troubleshooting and Diagnostics  
Activating T1 Inband Loopbacks  
T1 physical loopbacks can be activated by receiving a loopback activation code  
from TDM equipment connected to the T1 port. When IPmux-11 receives a  
loopback activation code, it closes an external loopback (see Figure 6-14), or  
translates the TDM-based loopback activation code into the packet-based pattern  
and sends it to the opposite IPmux device, which closes an internal loopback  
(see Figure 6-15).  
The inband loopback can be activated only if the OAM connectivity is enabled  
and only one bundle is configured for each port of the device.  
An inband loopback is deactivated automatically, if:  
TDM connection is down  
Ethernet connection is down  
The user activated an internal or external loopback manually.  
Figure 6-14. T1 Inband Loopback Performed by Local IPmux-11  
Figure 6-15. T1 Inband Loopback Performed by Remote IPmux-11  
To activate an inband loopback:  
From the Inband Loop Detection menu (Diagnostics > Loopback > Inband  
Loop Detection), perform the following:  
Select Loop Location and set it as follows:  
Local System (External loopback is activated in the local IPmux-11)  
Remote System (Internal loopback is activated in the remote IPmux-11)  
Disable (IPmux-11 ignores inband activation code).  
IPmux-11 Ver. 2.00  
Testing IPmux-11  
6-19  
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Installation and Operation Manual  
Define loop-up code length (Length of the code to be sent by the TDM device  
in order to activate a loopback)  
Define loop-up code (Code to be sent by the TDM device in order to activate  
a loopback)  
Define loop-down code length (Length of the code to be sent by the TDM  
device in order to deactivate a loopback)  
Define loop-up code (Code to be sent by the TDM device in order to  
deactivate a loopback).  
Diagnostics>Loopback (T1)>Inband Loop Detection  
1. Loop Location  
> (Local System)  
... (5)  
2. Loop up length[1 - 8]  
3. Loop up code[Hex]  
4. Loop down length[1 - 8]  
5. Loop down code[Hex]  
... (10)  
... (3)  
... (4)  
>
Please select item <1 to 5>  
ESC-prev.menu; !-main menu; &-exit  
Figure 6-16. Inband Loop Detection Menu  
1 Mngr/s  
Pinging IP Hosts  
You can ping a remote IP host to check the IPmux-11 IP connectivity.  
To ping an IP host:  
1. From the Diagnostics menu (Figure 6-4), select Ping.  
The Ping menu appears (see Figure 6-17).  
2. From the Ping menu, configure the following:  
Destination IP Address (IP address of the host that you intend to ping):  
0.0.0.0 to 255.255.255.255.  
VLAN Tagging:  
Enable (VLAN tagging is enabled)  
Disable (VLAN tagging is disabled)  
VLAN ID: 1–4095  
VLAN Priority: 0–7  
Note  
The VLAN ID and VLAN Priority configuration is available only if the VLAN tagging is  
enabled.  
Number of frames to send: 14.  
3. Select Ping to start sending pings.  
6-20  
Testing IPmux-11  
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Chapter 6 Troubleshooting and Diagnostics  
Diagnostics>Ping  
1. Destination IP address  
2. VLAN tagging  
... (0.0.0.0)  
(Enable)  
... (0)  
3. VLAN ID[1 - 4095]  
4. VLAN priority[0 - 7]  
5. Number of frames to send[1 - 4]  
6. Ping send  
... (0)  
... (1)  
>
Please select item <1 to 6>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 6-17. Ping Menu  
Running a Trace Route  
You can run a trace route to a remote IP host to check the IPmux-11 IP  
connectivity.  
To run a trace route to an IP host:  
1. From the Diagnostics menu (Figure 6-4), select Trace route.  
The Trace route menu appears (see Figure 6-18).  
2. From the Trace route menu, configure the following:  
Destination IP Address (IP address of the host to which you intend to trace  
the route): 0.0.0.0 to 255.255.255.255.  
VLAN Tagging:  
Enable (VLAN tagging is enabled)  
Disable (VLAN tagging is disabled)  
VLAN ID: 1–4095  
VLAN Priority: 0–7  
Note  
The VLAN ID and VLAN Priority configuration is available only if the VLAN tagging is  
enabled.  
3. Select Trace route send to start the trace route.  
IPmux-11 Ver. 2.00  
Testing IPmux-11  
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Diagnostics>Trace route  
1. Destination IP address  
2. VLAN tagging  
... (0.0.0.0)  
(Enable)  
... (1)  
3. VLAN ID[1 - 4095]  
4. VLAN priority tag [0 - 7]  
5. Trace route send  
... (0)  
>
Please select item <1 to 5>  
ESC-prev.menu; !-main menu; &-exit  
1 Mngr/s  
Figure 6-18. Trace route Menu  
6.6 Frequently Asked Questions  
Q: How does the IPmux handle/propagate alarms on the TDM and Ethernet side?  
A: The IPmux handles alarms on the TDM and Ethernet side in the following  
manner:  
TDM side alarms  
Unframed mode:  
In case of LOS (Loss Of Signal) on the local IPmux side, AIS will be sent  
towards the IP side, and will then be transferred over the E1/T1 to the  
remote TDM device.  
All other alarms sent from the near-end TDM device (including information  
on timeslot 0), will be propagated transparently by the local IPmux, to the  
remote end TDM device (over the IP connection).  
Framed mode:  
In case of LOS/LOF/AIS detected on the local IPmux side, a user-configurable  
conditioning pattern (00 to FF) will be sent on the relevant timeslots (over the IP  
connection), to the far-end TDM device. A user-configurable conditioning  
pattern can also be applied on the ABCD bits (CAS signaling 1 to F) going  
towards the remote PBX.  
The frame synch on the E1/T1 level is maintained in favor of the end TDM  
devices.  
Ethernet Side Alarms  
Unframed mode:  
In case of local failure on the IPmux, or a situation of jitter buffer  
underflow/overflow, an (unframed) AIS will be sent towards the near-end TDM  
side.  
6-22  
Frequently Asked Questions  
IPmux-11 Ver. 2.00  
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Installation and Operation Manual  
Chapter 6 Troubleshooting and Diagnostics  
Framed mode:  
In case of local failure on the IPmux, or situation of jitter buffer  
underflow/overflow, a conditioning pattern (00 to FF) will be sent towards the  
near-end TDM device on the timeslots related to that specific bundle. A user-  
configurable conditioning pattern can also be applied on the ABCD bits (CAS  
signaling 1 to F), going towards the local TDM device.  
In this case the synch on the E1/T1 level is maintained in favor of the TDM end  
devices.  
Q: How can I ensure the IPmux TDMoIP traffic priority over an IP  
Ethernet network?  
A: The IPmux units offer three different methods of the TDMoIP traffic  
prioritization over an IP/Ethernet network:  
VLAN ID (Layer 2)  
ToS field (Layer 3)  
UDP destination port (Layer 4).  
Each QoS feature is based on a different OSI level and can be used individually  
in order to ensure the TDMoIP traffic priority. When determining which feature  
to use, it is important to verify that the different elements on the network,  
(Switches / Routers / etc.), support the selected priority mechanism and are also  
configured to give the highest priority to the labeled IPmux traffic.  
Notice that the priority is given to the TDMoIP traffic by the network elements  
and the IPmux is merely tagging the packets.  
VLAN ID  
The IPmux complies with the IEEE 802.1p&Q standards. This enables the user  
to set both VLAN ID and VLAN Priority. It adds four bytes to the MAC layer  
(Layer 2) of the Ethernet frame. These bytes contain information about the  
VLAN ID, and the VLAN priority, which runs from 0–7. The IPmux only tags the  
packets, while the switches are responsible for giving the priority according to  
the VLAN info. Verify that the IPmux traffic has the highest priority in the  
relevant Ethernet network.  
ToS  
There are several RFCs (RFC791, RFC1349, RFC2474) that define how the IP  
ToS should be configured. The ToS is a byte located in the IP header (Layer 3).  
In general the Type of Service octet, in most cases, consists of three fields:  
The first field, labeled "PRECEDENCE", is intended to denote the importance or  
priority of the datagram.  
The second field, labeled "TOS", denotes how the network should make  
tradeoffs between throughput, delay, reliability, and cost.  
The last field, labeled "MBZ" (for "must be zero") above, is currently unused.  
The IPmux can configure the whole IP ToS byte, and therefore it is adaptable to  
each RFC in the market. The IP ToS parameter in the IPmux is user-configured  
in terms of decimal value. However, on the frame itself it of course appears in  
binary format. The decimal value varies between 0 and 255 (8 bits).  
IPmux-11 Ver. 2.00  
Frequently Asked Questions  
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Chapter 6 Troubleshooting and Diagnostics  
Installation and Operation Manual  
A configuration example:  
Setting IP precedence of 101 and IP ToS of 1000 will give us the byte  
10110000, which means that the IPmux IP ToS parameter should be  
configured to 176 decimals.  
UDP Destination Port  
The IPmux uses the UDP protocol (Layer 4) in order to transfer the TDMoIP  
traffic.  
In the UDP protocol, the ¿Destination port¿ field is always set to the decimal  
value of 2142, hence all the packets leaving the IPmux are tagged accordingly.  
This unique value was assigned to RAD by the IANA organization for TDMoIP  
applications.  
The network elements may be used to give priority to the TDMoIP traffic  
according to the UDP destination field.  
Q: Does allocating a sufficient bandwidth ensure the proper functionality of an  
IPmux-based application?  
A: A sufficient bandwidth is not enough to ensure a steady environment for the  
IPmux, since networks loaded with additional non-IPmux LAN traffic (e.g. PC  
traffic) or incompetent Ethernet/IP network may cause several problems:  
Jitter – The IPmux packets may suffer a delay variation (although all the  
traffic will eventually pass through due to that fact that there is sufficient  
bandwidth). Packets will be delayed for different periods of time due to  
overloaded networks, queuing mechanisms, etc. IPmux can compensate for  
some jitter (IPmux-1, IPmux-11 up to 300 msec, IPmux-8/16 up to 32 msec  
for E1 and 24 msec for T1) but bigger jitter will cause problems.  
Misordering – Packets might be sent in different order than the order in  
which they were originally sent from the IPmux.  
Packet Loss – Packets might be dropped/ignored by some elements in the  
network (routers/switches) due to insufficient processing power to handle  
the load, queuing mechanisms, buffer overflows, etc.  
Normally these problems are solved by giving priority to the IPmux traffic over  
all other traffic.  
As can be shown, even though there is sufficient bandwidth, there might still be  
cases in which the traffic will be transmitted from all the sources at the same  
time and thus create a momentary load on the network element (router/switch),  
even when this load that does not exceed the available bandwidth. Since the  
IPmux is constantly transmitting, the TDMoIP traffic will always be a part of  
such a load.  
When no priority is given to the TDMoIP traffic, the network elements will  
handle the TDMoIP traffic as any other type of traffic.  
All the above degrade the performance of the IPmux unit, although an  
adequate amount of bandwidth is provided for the IPmux.  
Refer to FAQ 3338 to understand how to check the IPmux and network  
performance and how to solve problems.  
6-24  
Frequently Asked Questions  
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Chapter 6 Troubleshooting and Diagnostics  
6.7 Technical Support  
Technical support for this product can be obtained from the local distributor from  
whom it was purchased.  
For further information, please contact the RAD distributor nearest you or one of  
RAD's offices worldwide. This information can be found at www.rad.com (offices –  
About RAD > Worldwide Offices; distributors – Where to Buy > End Users).  
IPmux-11 Ver. 2.00  
Technical Support  
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Installation and Operation Manual  
6-26  
Technical Support  
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Appendix A  
Connector Wiring  
A.1 E1 and T1 Connector  
Balanced Connector  
The E1 and T1 interfaces of IPmux-11 terminate in an 8-pin RJ-45 connector,  
wired in accordance with Table A-1.  
Table A-1. E1/T1 Port Connector Pinout  
Pin  
1
Designation  
RD (R)  
RD (T)  
Direction  
Input  
Input  
Function  
Receive data (ring)  
Receive data (tip)  
FGND  
2
3, 6  
4
TD (R)  
TD (T)  
Output  
Output  
N/A  
Transmit data (ring)  
Transmit data (tip)  
Not connected  
5
7, 8  
Balanced-to-Unbalanced Adapter Cable  
When IPmux-11 is ordered with unbalanced E1 interface, it is necessary to convert  
the RJ-45 connector to the standard pair of BNC female connectors used by  
unbalanced E1 interfaces. For that purpose, RAD offers a 150-mm long adapter  
cable, CBL-RJ45/2BNC/E1/X, wired in accordance with Figure A-1.  
Receive  
(Green)  
BNC  
Female  
Transmit  
RJ-45  
(Red)  
1
2
3
RX Ring  
RX Tip  
NC  
.
.
.
Receive  
(Green BNC)  
4
5
6
TX Ring  
TX Tip  
NC  
.
.
.
Transmit  
(Red BNC)  
7
8
NC  
NC  
Shielded  
RJ-45  
Figure A-1. CBL-RJ45/2BNC/E1/X Cable Wiring Diagram  
IPmux-11 Ver. 2.00  
E1 and T1 Connector  
A-1  
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Appendix A Connector Wiring  
Installation and Operation Manual  
A.2 Ethernet Connectors  
The network and user Ethernet electrical interfaces terminate in 8-pin RJ-45  
connectors, wired in accordance with Table A-2.  
Table A-2. Ethernet Connector Pinout  
Pin  
1
Function  
Tx+  
Tx–  
Rx+  
2
3
4
5
6
Rx–  
7
8
A.3 CONTROL Connector  
The control terminal interface terminates in a V.24/RS-232 9-pin D-type female  
DCE connector. Table A-3 lists the CONTROL connector pin assignments.  
Table A-3. CONTROL Connector Pinout  
Pin  
1
Function  
2
Rx  
3
Tx  
4
5
GND  
6
7
8
9
A-2  
CONTROL Connector  
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IPmux-11 Installation and Operation Manual  
Appendix A Connector Wiring  
A.4 External Clock Connector  
The external clock interface terminates in an 8-pin RJ-45 connector. Table A-4 lists  
the connector wiring.  
Table A-4. EXT CLK Connector Pinout  
Pin  
1
Function  
RxRing (clock in)  
2
RxTip (clock in)  
3
Alarm In (RS-232 level signal)  
4
TxRing (clock out, optional)  
5
TxTip (clock out, optional)  
6
NC  
NC  
NC  
7
8
IPmux-11 Ver. 2.00  
External Clock Connector  
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Appendix A Connector Wiring  
Installation and Operation Manual  
A-4  
External Clock Connector  
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Appendix B  
Boot Sequence and  
Downloading Software  
This appendix provides a description of the IPmux-11 boot procedure via an ASCII  
terminal for downloading software.  
The file system can hold two compressed copies of the IPmux-11 code. One copy  
is called the operating file, and the other is called the backup file. The operating  
file is the default-executable IPmux-11 code. The backup file is used whenever the  
operating file is absent or corrupted.  
B.1 Booting IPmux-11  
IPmux-11 boots up automatically. After powering up, no user intervention is  
required, except when the user wants to access the file system to modify or update  
the software or the IPmux-11 configuration.  
Accessing the Boot Manager  
The Boot Manager menu is an option that allows the user to perform basic file  
transfer operations. These operations are all optional.  
To access the Boot Manager menu:  
Press <Enter> several times immediately after powering up the IPmux-11.  
The Boot Manager menu is displayed (see Figure B-1).  
RAD Boot Manager Version 6.03 (Dec 29 2003)  
0 - Exit Boot-Manager  
1 - Dir  
2 - Set Active Software Copy  
3 - Delete Software Copy  
4 - Download Files or an Application by XMODEM  
5 - Format flash  
6 - Show basic hardware information  
7 - Perform Reset to the board  
8 - System Configuration.  
9 - Download an Application by TFTP  
Press the ESC key to go back to the Main Menu.  
Select:  
Figure B-1. Boot Manager Menu  
IPmux-11 Ver. 2.00  
Booting IPmux-11  
B-1  
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Appendix B Boot Sequence and Downloading Software  
Installation and Operation Manual  
From the Boot Manager menu, you can:  
List all files stored in the flash memory  
Exchange the operating and backup files  
Delete the operating file; the backup file becomes the operating file  
Download a new operating file (via XMODEM or TFTP); the previous  
operating file is saved as the backup file  
Delete all software and configuration files  
Display the basic hardware information (RAM, ROM size etc)  
Reset the IPmux-11 board  
Configure the IPmux-11 IP address, IP mask and default gateway for the  
consecutive file download via TFTP.  
If you choose to exchange or delete a file, you are prompted for confirmation.  
B.2 Downloading the Application and Configuration  
Software  
New application software releases are distributed as separate files, which are  
downloaded to IPmux-11 using the XMODEM protocol or TFTP from the Boot  
Manager menu. Alternatively, you can download a new software release via TFTP,  
when the IPmux-11 management software is already running (Main menu >  
Utilities > File Utilities > Download/Upload using TFTP).  
The TFTP can also be used for uploading configuration files which contain the  
IPmux-11 database to the management station. Administrators can use this  
capability to distribute verified configuration files to all other units which use the  
similar configuration.  
Downloading Application Files via XMODEM  
Downloading application files using the XMODEM protocol is performed from the  
Boot Manager menu.  
To download application file via XMODEM:  
1. Configure your ASCII terminal or terminal emulation utility running on your PC  
to the 115.2 kbps data rate.  
2. Access the Boot Manager menu.  
The Boot Manager menu appears (see Figure B-1).  
3. From the Boot Manager menu, type 4.  
IPmux-11 displays the following message:  
Select Copy number for download ( 0 )  
4. Select the backup partition by typing its number, 0 or 1.  
IPmux-11 responds with the following string:  
Please start the XMODEM download.  
B-2  
Downloading the Application and Configuration Software  
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Installation and Operation Manual  
Appendix B Boot Sequence and Downloading Software  
5. Send the software release file to IPmux-11 using the XMODEM utility of you  
terminal application.  
Once the downloading is completed, IPmux-11 saves the new release as an  
active partition, the former active partition turns into backup, and the boot  
sequence continues normally.  
If a failure occurs during the download, the partially downloaded software is  
erased. In this case, only active software is left in the flash memory.  
Downloading Application Files via TFTP  
To download application file via TFTP:  
1. From the Boot Manager menu, select System Configuration.  
2. Configure the IP parameters of IPmux-11 (IP address, IP mask and default  
gateway). These parameters are valid only for the TFTP file transfer via the  
Boot Manager.  
3. Start a TFTP application.  
4. Configure the communication parameters as follows:  
Connection timeout – more than 30 seconds to prevent an automatic  
disconnection during the backup partition deletion (about 25 seconds).  
Block size – 512 bytes.  
UDP port – 69.  
5. Select a local software release file to download.  
6. Enter the IPmux-11 IP address.  
7. Start downloading.  
IPmux-11 automatically erases the backup partition (it takes about  
25 seconds). Once the downloading is completed, IPmux-11 saves the new  
release as an active partition, the former active partition turns into backup.  
Uploading/Downloading Configuration Files via TFTP  
You can upload IPmux-11 configuration file to the management station for further  
distribution to all other units which use the similar configuration.  
To upload application file via TFTP:  
1. Start a TFTP application.  
2. Select the configuration to upload.  
3. Enter IP address of FTP server.  
4. Type s to start uploading.  
When the uploading is completed, you can download the configuration file to  
other IPmux-11 units.  
Downloading the Application and Configuration Software  
B-3  
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Appendix B Boot Sequence and Downloading Software  
Installation and Operation Manual  
B-4  
Downloading the Application and Configuration Software  
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Appendix C  
SNMP Management  
This appendix provides specific information for IPmux-11 management by SNMP  
(Simple Network Management Protocol).  
The SNMP management functions of IPmux-11 are provided by an internal SNMP  
agent. The SNMP management communication uses UDP (User Datagram  
Protocol), which is a connectionless-mode transport protocol, part of the IP  
(Internet Protocol) protocol suite.  
This appendix covers the information related to the SNMP environment.  
C.1 SNMP Environment  
SNMP Principles  
The SNMP is an asynchronous command-response polling protocol. All  
management traffic is initiated by the SNMP-based network management station,  
which addresses the managed entities in its management domain. Only the  
addressed managed entity answers the polling of the management station (except  
for trap messages).  
The managed entities include a function called an SNMP agent, which is  
responsible for interpretation and handling of the management station requests to  
the managed entity, and the generation of properly formatted responses to the  
management station.  
SNMP Operations  
The SNMP protocol includes four types of operations:  
getRequest: Command for retrieving specific management information from  
the managed entity. The managed entity responds with a getResponse  
message.  
getNextRequest: Command for retrieving sequentially specific management  
information from the managed entity. The managed entity responds with a  
getResponse message.  
setRequest: Command for manipulating specific management information  
within the managed entity. The managed entity responds with a getResponse  
message.  
trap: Management message carrying unsolicited information on extraordinary  
events, which are events that occurred not in response to a management  
operation reported by the managed entity.  
IPmux-11 Ver. 2.00  
SNMP Environment  
C-1  
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Appendix C SNMP Management  
Installation and Operation Manual  
Management Information Base (MIB)  
The MIB includes a collection of managed objects. A managed object is defined as  
a parameter that can be managed, such as a performance statistics value. The MIB  
includes the definitions of relevant managed objects. Various MIBs can be defined  
for various management purposes or types of equipment.  
An object definition includes the range of values (also called instances) and the  
following access rights:  
Read-only: Instances of that object can be read, but cannot be set.  
Read-write: Instances of that object can be read or set.  
Write-only: Instances of that object can be set, but cannot be read.  
Not accessible: Instances of that object cannot be read, or set.  
MIB Structure  
The MIB has an inverted tree-like structure, with each definition of a managed  
object forming one leaf, located at the end of a branch of that tree.  
Each leaf in the MIB is reached by a unique path. Thus, by numbering the  
branching points starting with the top, each leaf can be uniquely defined by a  
sequence of numbers.  
The formal description of the managed objects and the MIB structure is provided  
in a special standardized format, called ASN.1 (Abstract Syntax Notation 1). Since  
the general collection of MIBs can also be organized in a similar structure, under  
IAB (Internet Activities Board) supervision, any parameter included in a MIB that is  
recognized by the IAB is uniquely defined.  
To provide the flexibility necessary in a global structure, MIBs are classified in  
various classes (branches). One is the experimental branch and another the group  
of private (enterprise-specific) branch.  
Under the private enterprise-specific branch of MIBs, each enterprise  
(manufacturer) can be assigned a number, which is its enterprise number. The  
assigned number designates the top of an enterprise-specific sub-tree of non-  
standard MIBs. Within this context, RAD has been assigned the enterprise number  
164. Therefore, enterprise MIBs published by RAD can be found under  
1.3.6.1.4.1.164.  
MIBs of general interest are published by the IAB in the form of a Request for  
Comment (RFC) document. In addition, MIBs are also often assigned informal  
names that reflect their primary purpose. Enterprise-specific MIBs are published  
and distributed by their originator, who is responsible for their contents.  
C-2  
SNMP Environment  
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Appendix C SNMP Management  
MIBs Supported by the IPmux-11 SNMP Agent  
The interpretation of the relevant MIBs is a function of the SNMP agent of each  
managed entity. The general MIBs supported by the IPmux-11 SNMP agent are:  
rfc1213.mib (except the interfaces view which is supported via RFC 2233)  
ianaiftype.mib (defines the ifType)  
rfc2233.mib (IF-MIB)  
rfc2011.mib  
rfc2012.mib  
rfc2013.mib  
rfc1907.mib  
rfc2683.mib  
rfc1215.mib  
rfc1493.mib  
rfc1643.mib  
rfc2239.mib  
rfc2494.mib  
rfc2261.mib  
rfc1695.mib  
rfc2674.mib  
rfc2819.mib  
rfc2495.mib (except Far End objects and RW configuration objects which are  
different for each configuration) - replaces RFC 1406; which is now obsolete.  
IPmux RAD private mib.  
The IPmux-11 object ID is  
iso (1).org(3).dod(6).internet(1).private(4).enterprises(1).rad(164).radGen(6).  
systems(1).radSysIPMux(3).IPmux11(106)  
Enterprise-specific MIBs supported by RAD equipment, including IPmux-1/1E6,  
are available in ASN.1 format from the RAD Technical Support department.  
Management Domains under SNMP  
In principle, SNMP allows each management station that recognizes the MIBs  
supported by a device to perform all the management operations available on that  
device. However, this is not desirable in actual practice, it is necessary to provide a  
means to delimit management domains.  
IPmux-11 Ver. 2.00  
SNMP Environment  
C-3  
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Appendix C SNMP Management  
Installation and Operation Manual  
SNMP Communities  
SNMP delimits management domains by defining communities. Each community  
is identified by a name, which is an alphanumeric string of up to 255 characters  
defined by the user.  
The IPmux-11 SNMP agent defines strings of up to 10 characters (case sensitive,  
numeric and alphabetical).  
Any SNMP entity (both managed entities and management stations) is assigned a  
community name by its user. In parallel, the user defines a list of the communities  
for each SNMP entity that are authorized to communicate with the entity, and the  
access rights associated with each community (this is the SNMP community name  
table of the entity).  
In general, SNMP agents support two types of access rights:  
Read-Only: The SNMP agent accepts and processes only SNMP getRequest and  
getNextRequest commands from management stations which have a Read-Only  
community name.  
Read-Write: The SNMP agent accepts and processes all the SNMP commands  
received from a management station with a Read-Write community name.  
Authentication  
In accordance with SNMP protocol, the SNMP community of the originating entity  
is sent in each message.  
When an SNMP message is received by the addressed entity, it first checks the  
originator's community. Messages with community names not included in the  
SNMP community names table of the recipient are discarded. SNMP agents of  
managed entities usually report this event by means of an authentication failure  
trap.  
The SNMP agents of managed entities evaluate messages originated by  
communities appearing in the agent's SNMP community names table in  
accordance with the access rights, as previously explained. Thus, a setRequest for  
a MIB object with read-write access rights will nevertheless be rejected if it comes  
from a management station whose community has read-only rights with respect to  
that particular agent.  
Network Management Stations  
The IPmux-11 SNMP agent stores the IP address of the Network Management  
Station (NMS) that is intended to manage it.  
C-4  
SNMP Environment  
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Index  
—A—  
—E—  
E1  
collecting statistics, 6-1  
configuring the port, 4-13  
framing, 4-14  
Autonegotiation, 4-19  
—B—  
Boot  
Bridge  
configuration, 4-24  
OOS signaling, 4-14  
Rx sensitivity, 4-14  
Send Upon Fail, 4-14  
standards, 1-2  
Ethernet  
autonegotiation, 4-19  
collecting statistics, 6-5  
configuring the port, 4-18  
Bundles  
assigning timeslots, 4-20  
collecting statistics, 6-7  
configuring connections, 4-20  
configuring statistics collection, 6-15  
physical layer status, 4-30  
fiber optic, 1-3  
frame reordering, 1-14  
maximum capability advertised, 4-19  
—C—  
Cables  
CBL-DB9F-DB9M-STR, 2-2, 2-4  
CBL-DB9F-DB9M-STR, 2-2, 2-4  
CBL-RJ45/2BNC/E1/X, 2-2, 4-15, A-1  
Events  
clearing log, 6-14  
displaying log, 6-11  
External clock  
Clock  
configuring, 4-13, 4-16  
configuring access, 4-9  
system requirements, 3-8  
Control  
—F—  
configuring the port, 4-10  
Frame  
TDMoMPLS, 1-10  
—D—  
—G—  
Diagnostics  
Downloading application  
Downloading configuration  
—H—  
configuring IP parameters, 4-3  
IPmux-11 Ver. 2.00  
I-1  
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Index  
Installation and Operation Manual  
—I—  
Inventory, 4-27  
—J—  
Jitter buffer, 1-12, 6-9, 6-10  
time since, 6-10  
TDM Physical Layer, 4-29  
User Access, 4-9  
MIB, C-2  
—L—  
Loopbacks  
disabling, 6-18  
structure, C-2  
—O—  
OAM, 1-15  
OOS  
signaling, 4-14, 4-17  
—M—  
Management  
default settings, 3-3  
defining access, 4-8  
defining network managers, 4-5  
defining users, 4-8  
—P—  
Password, 3-6, 4-8  
buffer, 1-12  
Ping  
Ports  
connecting, 2-2  
Power  
connecting, 2-4  
Protection  
flooding, 1-17  
saving changes, 3-8  
Menus  
Alarm Trap Mask, 6-15  
Authentication/Community, 4-5  
Bridge, 4-26  
Connection (Status), 4-31  
Control Port, 4-11  
—R—  
automatic, 1-17  
Reset  
to defaults, 4-32  
Diagnostics, 6-11  
Diagnostics loopback, 4-29  
Download/Upload Using TFTP, 4-32  
RM-33-2, 2-1, 2-2  
Eth Physical Layer, 4-30  
Event Log, 6-12  
—S—  
Self-test, 6-10  
Signaling  
SNMP  
configuring access, 4-9  
Management Access, 4-8, 4-10  
Self Test Results, 6-11  
I-2  
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Installation and Operation Manual  
Index  
Statistics  
Terminal  
Status  
Diagnostics loopback, 4-28, 6-18  
Eth physical layer, 4-29  
Superuser, 3-6, 4-8  
Timeslots  
assigning to bundles, 4-20  
Timing  
configuring, 4-13, 4-16  
Trace route  
Trail-extended mode, 1-15  
Traps  
masking, 6-15  
—T—  
T1  
collecting statistics, 6-1  
configuring the port, 4-15  
framing, 4-16  
inband loopbacks, 6-19  
line interface, 4-16  
OOS signaling, 4-17  
restoration time, 4-17  
Rx sensitivity, 4-16  
signaling mode, 4-17  
standards, 1-2  
—U—  
Uploading application  
—V—  
TDMoIP  
frame format, 1-8  
configuring table, 4-25  
default ID, 4-25  
default priority, 4-25  
frame format, 1-10  
—X—  
IPmux-11 Ver. 2.00  
I-3  
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Index  
Installation and Operation Manual  
I-4  
IPmux-11 Ver. 2.00  
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Supplement  
Drilling Template for Wall Installation  
Front Panel  
1
1
176 mm (6.92 in)  
3
3
2
2
101.6 mm (4 in)  
This panel is drawn to scale.  
To drill the holes for a wall installation, tear this page out  
of the manual or print it on letter-size paper (8.5"x11.0") and  
hold it against the wall.  
LEDs facing up - drill at 1.  
LEDs facing down - drill at 2.  
LEDs facing left - drill at 3.  
377-901-02/06  
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24 Raoul Wallenberg St., Tel Aviv 69719, Israel  
Tel: +972-3-6458181, Fax: +972-3-6483331, +972-3-6498250  
E-mail: [email protected], Web site:  
Customer Response Form  
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INTERNATIONAL HEADQUARTERS:  
24 Raoul Wallenberg Street, Tel Aviv 69719, Israel, Tel: 972-3-6458181  
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Publication No. 352-200-08/06  
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