ADC Network Card Campus REX2 RS User Manual
CAMPUS-REX2 RS INTERFACE CARD  
VERSION 5.1  
USER MANUAL  
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FCC Notice  
FCC NOTICE  
This unit complies with the limits for a Class A digital device, pursuant to  
Part 15 of the FCC rules. These limits are designed to provide reasonable  
protection against harmful interference in a residential installation. This  
equipment generates, uses and can radiate radio frequency energy and, if not  
installed and used in accordance with the instructions, may cause harmful  
interference to radio communications. However, there is no guarantee that  
interference will not occur in a particular installation. Testing on older  
Campus-RS models was performed at 3.072 Mbps. If this equipment does  
cause harmful interference to radio or television reception, which can be  
determined by turning the equipment off and on, the user is encouraged to try  
to correct the situation by one or more of the following measures:  
•
•
•
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and the receiver.  
Consult the dealer or an experienced radio or television technician  
for help.  
Any changes or modifications not expressly approved by the grantee of this  
device voids the user’s authority to operate the equipment.  
Campus-REX2 RS Interface Card User Manual  
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Using This Manual  
USING THIS MANUAL  
This manual provides installation, configuration and management procedures  
for using the ADC Campus® Remote Ethernet eXpress2 (Campus-REX2®)  
RS interface card. It includes procedures to:  
•
install the card in either a Campus-RS™ desktop unit (150-1158-01,  
150-1158-02, 150-1158-51, or 150-1158-52) or Campus-Star® chassis  
(150-1220-01, 150-1220-02, or 150-1220-51)  
•
•
•
•
•
configure the Campus-REX2 using the LCD and buttons  
configure the Campus-REX2 using the command-line interface  
monitor the Campus-REX2 performance  
perform testing on the Campus-REX2  
contact ADC for assistance  
DOCUMENT CONVENTIONS  
Messages identified by icons shown below may appear in the text.  
Notes contain information about special circumstances.  
Cautions indicate the possibility of personal injury or  
equipment damage.  
The Electrostatic Discharge (ESD) symbol indicates that a  
device or assembly is susceptible to damage from  
electrostatic discharge.  
iv  
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Document Conventions  
The following conventions are used in this manual:  
• This fontindicates text that appears on the LCD or terminal.  
•
Keycaps, such as ESC , indicate keys that you press on a terminal  
keyboard.  
•
Names in bold font indicate buttons on the desktop unit or line unit that  
you press.  
For a list of abbreviations used in this manual, see “Abbreviations” on page  
143.  
This table describes the manuals and guides in the Campus-RS  
documentation set.  
Document  
Description  
Campus-Star User  
Manual  
Contains instructions for setting up and using a  
Campus-Star. The manual includes instructions for  
installing line units and interface cards into the  
Campus-Star chassis.  
Campus-RS Line Unit  
User Manual  
Describes the features of the Campus-RS line unit  
and provides installation instructions.  
Campus-RS Desktop  
Unit User Manual  
Describes the features of the Campus-RS desktop  
unit and provides instructions for installing interface  
cards, and connecting the unit to an HDSL line.  
Campus Interface Card  
User Manuals  
Describes the features of the individual Campus  
interface cards, one card per manual, and contains  
instructions for configuring and monitoring the  
system through the cards.  
Campus-REX2 RS Interface Card User Manual  
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Unpack and Inspect the Shipment  
UNPACK AND INSPECT THE SHIPMENT  
Upon receiving the Campus-REX2 RS Interface Card:  
1
Unpack the card and inspect it for signs of damage. If it has been  
damaged in transit, report the extent of the damage to the transportation  
company and to your sales representative immediately. Order  
replacement equipment if necessary.  
2
Compare the contents of the package against the packing list to ensure a  
complete and accurate shipment. If the shipment is incomplete or  
incorrect, contact ADC as described in “Contacting ADC” on page 145.  
If you need to store the unit for several days or more before installing it, return  
it to the original packaging.  
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Table of Contents  
TABLE OF CONTENTS  
Chapter 1: Installing and Accessing the REX2 ____________ 1  
Installing the Campus-REX2.................................................................. 2  
Installing into a Desktop Unit.................................................. 3  
Installing into a Campus-Star Chassis ..................................... 4  
Connecting the Ethernet Line................................................................. 5  
Powering Up and Checking the Connection .......................................... 7  
Setting Up Access to the Campus Unit .................................................. 8  
Connecting to the Campus Unit Console Port ......................... 9  
Logging In............................................................................................ 12  
Logging In a Campus Unit Using Telnet............................... 12  
Logging In a Local Campus Unit through the Console Port . 13  
Logging On a Remote Campus Unit...................................... 15  
Logging Off.......................................................................................... 16  
Using the Menus................................................................................... 16  
Operating with Default Values............................................................. 17  
Chapter 2: Configuring HDSL Parameters______________ 19  
Configuring HDSL Parameters ............................................................ 20  
Accessing HDSL Configuration ............................................ 20  
Selecting HDSL Parameters .................................................. 21  
Configuring HDSL Alarms .................................................................. 26  
Accessing HDSL Alarms Configuration ............................... 26  
Setting HDSL Alarms............................................................ 27  
Chapter 3: Configuring the REX2 _____________________ 29  
Accessing the REX2 Configuration and Status Screen........................ 30  
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Table of Contents  
Configuring the Campus-REX2 as a Bridge.........................................30  
Configuring Bridge Protocol, Encapsulation and Timing......31  
Configuring Bridge Features..................................................32  
Saving the Bridge Configuration............................................40  
Accessing the Bridge and ARP Tables...................................41  
Configuring the Campus-REX2 as a Router.........................................44  
Configuring Routing Protocol, Encapsulation and Timing....45  
Configuring Routing Features................................................46  
Configuring DHCP Services ..................................................53  
Saving the Router Configuration............................................55  
Accessing the Routing Tables ................................................56  
Configuring the Campus-REX2 for SNMP Management....................60  
Accessing the SNMP Configuration ......................................60  
Entering SNMP Parameters....................................................61  
Enabling Authentication Error Trap Generation....................62  
Configuring Trap Receivers ...................................................63  
Chapter 4: Managing System Parameters _______________ 65  
Accessing System Configuration..........................................................66  
Setting the Time and Date ....................................................................67  
Identifying the Unit and Circuit............................................................67  
Setting a Password................................................................................69  
Restoring Default Values......................................................................70  
Viewing Product Information ...............................................................72  
Chapter 5: Monitoring and Testing the Campus System ___73  
Monitoring HDSL Performance ...........................................................74  
Monitoring Current System Status.........................................75  
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Table of Contents  
Viewing 24-Hour Performance History................................. 76  
Viewing Seven-Day Performance History............................. 77  
Viewing Local Alarm History ............................................... 79  
Viewing Ethernet Statistics .................................................................. 80  
Viewing Bridge Statistics ...................................................... 81  
Viewing Router Statistics ...................................................... 83  
Performing Tests .................................................................................. 85  
Performing Loopback Testing ............................................... 87  
Resetting the Campus Unit................................................................... 89  
Chapter 6: Managing Software________________________ 91  
Upgrading Campus Unit Software ....................................................... 92  
Recovering Software............................................................................ 95  
Chapter 7: Using the LCD for Configuration and  
Management _____________________________ 97  
Navigating the LCD Menus ................................................................. 98  
Setting the HDSL Parameters............................................................... 99  
Accessing LCD HDSL Configuration ................................. 100  
Configuring Standard Mode ................................................ 100  
Configuring Extended Mode Parameters............................. 101  
Configuring the Campus-REX2 ........................................................ 103  
Accessing LCD REX2 Configuration.................................. 104  
Configuring REX2 Parameters ............................................ 104  
Saving the REX2 Configuration .......................................... 108  
Restoring the System to Default Values............................................. 108  
Viewing and Configuring Alarms ...................................................... 109  
HDSL Alarms ...................................................................... 109  
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Table of Contents  
Local Alarms ........................................................................111  
Remote Alarms.....................................................................112  
Configuring Loopbacks ......................................................................113  
Initiating a Loopback............................................................114  
Clearing a Loopback ............................................................114  
Setting the Loopback Timeout .............................................114  
Viewing System Information..............................................................115  
Viewing Status Information................................................................115  
Ethernet Information ............................................................116  
HDSL Margin.......................................................................116  
Port Statistics ......................................................................................116  
Bridge Port Statistics............................................................117  
Router Port Statistics............................................................118  
Chapter 8: Internetworking and Management Overview__ 119  
Composition of a Campus-RS System................................................120  
Application..........................................................................................121  
Point-to-Point LAN Extension .............................................122  
LAN Connections Over a WAN ..........................................123  
MAC-Level Bridging and Spanning Tree Protocol............................124  
About MAC-Level Bridging ................................................124  
About Spanning Tree Protocol.............................................124  
IP Routing...........................................................................................126  
Static Routing.......................................................................126  
Dynamic Routing .................................................................129  
Campus-REX2 IP Addresses................................................129  
Management Protocols .......................................................................132  
SNMP ...................................................................................132  
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Table of Contents  
Telnet ................................................................................... 133  
FTP....................................................................................... 133  
MIB and Trap Support ....................................................................... 133  
DHCP ................................................................................................. 134  
Encapsulation Protocols ..................................................................... 135  
Product Compatibility ........................................................................ 136  
Compatibility with Earlier Campus Products ...................... 136  
Compatibility with Campus-RS Products............................ 137  
Compatibility with Earlier Versions of Campus Products... 138  
Appendix A: Technical Reference _____________________ 139  
Specifications ..................................................................................... 139  
Default Settings .................................................................................. 140  
Ethernet Port....................................................................................... 141  
Standards ............................................................................................ 141  
Appendix B: Abbreviations __________________________ 143  
Appendix C: Contacting ADC ________________________ 145  
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Table of Contents  
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INSTALLING AND  
ACCESSING THE REX2  
1
The Campus-REX2 RS is a 10/100Base-T Ethernet interface card that  
provides:  
•
IEEE 802.1d transparent MAC level bridging with Spanning Tree  
protocol support  
•
•
•
•
•
•
•
static and dynamic IP Routing  
DHCP relay  
DHCP client  
cHDLC or PPP frame encapsulation options  
FTP server for transferring software upgrades  
VLAN support that accommodates forwarding larger-sized packets  
embedded Simple Network Management Protocol Version 1  
(SNMP V1) agent  
The following sections provide instruction to install the Campus-REX2 and  
access it for configuration and management.  
For:  
See Page:  
Installing the Campus-REX2  
Connecting the Ethernet Line  
Powering Up and Checking the Connection  
Setting Up Access to the Campus Unit  
Logging In  
2
5
7
8
12  
16  
16  
17  
Logging Off  
Using the Menus  
Operating with Default Values  
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1
 
Chapter 1 - Installing and Accessing the REX2  
The Campus-REX2 can be installed into either a Campus-Star chassis  
(paired with a Campus-RS or -HRS Line Unit) or into a Campus-RS or -HRS  
desktop unit. The , installed into either, provides one end of a High-bit-rate  
Digital Subscriber Line (HDSL) transmission system. When connected to  
another Campus-RS, Campus-HRS, Campus-T1®, Campus-768®, or  
Campus-E1® desktop unit or a line unit in another chassis, the Campus  
system transports digitized voice, data, and video signals over existing copper  
wire at an HDSL rate specified by the user from a range of rates up to 4.608  
Mbps.  
When the Campus-REX2 is installed in a Campus-HRS desktop unit or with  
a Campus-HRS line unit (or older), only T1, E1, and 768 Mbps data rates are  
supported.  
INSTALLING THE CAMPUS-REX2  
The following sections describe how to install the Campus-REX2 RS  
Interface Card into either a:  
•
•
Campus desktop unit on page 1-3  
Campus-Star chassis on page 1-4  
Ensure that the Campus-REX2 is installed into a Campus-RS  
or Campus-HRS desktop unit or into a Campus-Star chassis  
with a Campus-RS or Campus-HRS line unit only. The  
Campus-REX2 will not operate if it is installed in an earlier  
version of these Campus products.  
Ensure that you read important information on surge  
protection for HDSL line installation in the line unit or desktop  
unit manual before installing the Campus-REX2 interface  
card.  
For information about compatibility between the Campus-REX2 and other  
Campus products, refer to “Product Compatibility” on page 136.  
For information about products that comprise a Campus system, refer to  
“Composition of a Campus-RS System” on page 120.  
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Chapter 1 - Installing and Accessing the REX2  
Installing into a Desktop Unit  
Install the Campus-REX2 interface card into a Campus-RS or Campus-HRS  
desktop unit before you install the desktop unit (install power and HDSL  
cables). Install the Campus-RS desktop unit using the instructions in the  
Campus-RS Desktop Unit User Manual.  
Ensure power is off to the desktop unit before you install the  
Campus-REX2. Installing the card with the power on may  
cause damage to the desktop unit, the card, or to both.  
1
2
Ensure that the desktop unit is not connected to power.  
Slide the Campus-REX2 into the guide rails in the rear of the  
desktop unit.  
Campus-RS Desktop Unit chassis  
Guide rail  
Campus-REX2 RS  
Interface card  
CAMPUS-RS  
120  
or 220  
V
A
C@60Hz  
V
A
.2A MCa@x50Hz  
L
i
n
k
REX2 Router  
/
A
c
t
i
v
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t
y
H
U
B
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IN  
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1
P
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0
B
1
a
0
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a
0
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B
-T  
e
-T  
x
3
Gently press the card into place until it is seated firmly in the mating  
connector.  
4
5
Secure the card in place using the two captive screws.  
Complete the desktop unit installation using the Campus-RS Desktop  
Unit User Manual.  
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Chapter 1 - Installing and Accessing the REX2  
Installing into a Campus-Star Chassis  
The Campus-REX2 must be installed into a Campus-Star chassis first, before  
you install the corresponding Campus-RS or Campus-HRS line unit.  
The Campus-REX2 is not hot-swappable. Damage may occur  
to the Campus-REX2, the line unit, or both if the line unit is  
installed before you install the Campus-REX2.  
1
2
Ensure that a line unit is not installed in the line-unit slot corresponding  
to the slot where you will install the Campus-REX2.  
Slide the Campus-REX2 into the guide rails of the selected slot at the rear  
of the Campus-Star chassis.  
DSX  
DSX  
-
X
S
620  
FG  
C
D
-
X
S
620  
FG  
C
D
10Base-T  
100Base-Tx  
REX2Router  
Campus-Star  
chassis  
C
P
Link/Act  
ivi  
y
I-X  
D
D
M
M
I
B
U
H
Campus-REX2 RS Interface card  
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Chapter 1 - Installing and Accessing the REX2  
3
Gently press the card into place until it is seated firmly in the mating  
connector.  
4
5
Secure the card in place using the two captive screws.  
Install a Campus-RS line unit and connect it to an HDSL line using the  
Campus-RS Line Unit User Manual. The line unit provides the DSL  
connection for the interface card.  
CONNECTING THE ETHERNET LINE  
The 10 Base-T and 100 Base-Tx (10/100Base-T) port on the rear panel of the  
Campus-REX2 connects to a LAN through a hub, repeater, or another router.  
The port autosenses both the 10/100Base-T port rate and half- or full-duplex  
mode of the network device to which it connects and matches the  
configuration.  
Use a straight-through Category 5 cable to connect the Ethernet port. Set the  
MDI/MDI-X switch to the appropriate position, dependent on the device to  
which you are connecting.  
1
Set the Campus-REX2 MDI/MDI-X switch to one of the following:  
•
MDI-X when connecting to  
network equipment such as  
an Ethernet NIC in a PC or  
any other equipment that has  
an MDI port  
Use when connecting  
to an MDI port such as  
a PC Ethernet NIC  
MDI-X  
Use when connecting  
to an MDI-X port such as  
a hub, switch, or router  
MDI  
•
MDI when connecting to  
network equipment such as a  
hub, switch, or router or any other equipment that has an  
MDI-X port  
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Chapter 1 - Installing and Accessing the REX2  
2
Plug one end of the Category 5 cable into the 10/100Base-T connector on  
the Campus-REX2 faceplate.  
Campus-RS Desktop Unit  
PC, hub, router or  
other Ethernet equipment  
Ethernet port  
10 Base-T  
100 Base-Tx port  
Link/A  
RE  
X2 Router  
ctivity  
H
UB  
M
D
I
M
D
I-X  
10  
100 Base-T  
ase-Tx  
B
P
C
120  
or 220  
V
A
C@60Hz  
V
A
.2A MCa@x50Hz  
Category 5 cable  
The Campus-REX2 10/100Base-T interface operates in either  
half- or full-duplex mode which is determined by autosensing  
its network connection. Both the LCD menu and console  
menu displays the mode.  
3
Connect the other end of the Ethernet cable to the local Ethernet  
equipment (repeater, PC NIC, or other Ethernet device).  
6
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Chapter 1 - Installing and Accessing the REX2  
POWERING UP AND CHECKING THE CONNECTION  
Verify operating status after completing a full installation that includes  
installing of the Campus-REX2 into a desktop unit or Campus-Star chassis  
and then completing the installation of the desktop unit or the Campus-Star  
chassis (including the Line Unit):  
1
Verify that the power cord is connected to the desktop unit or to the  
Campus-Star chassis (if you have an AC power supply) and to an  
external power source. Then verify the powerup of and HDSL  
connection for that unit as specified in the appropriate user manual.  
2
3
If the Campus-REX2 is installed in a desktop unit, press the power button  
to On. The button is located on the back of the desktop unit.  
Verify that the Link LED on the Campus-REX2 card is green. This  
indicates that the 10/100Base-T connection is operating correctly. If the  
Link LED does not light green, check the 10/100Base-T cabling  
configuration.  
If the link LED does not light green, check that the MDI/MDI-X switch  
is set to the appropriate position.  
Campus-REX2 RS Interface Card User Manual  
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Chapter 1 - Installing and Accessing the REX2  
SETTING UP ACCESS TO THE CAMPUS UNIT  
Configure a Campus system through any of the following:  
•
•
•
a PC connected to the desktop unit Console port  
a PC connected to the Campus-Star line unit Console port  
a telnet session to the Campus-REX2 over the Internet or the CMU in a  
Campus-Star chassis  
•
•
the LCD menu and buttons on the desktop unit or CMU front panel  
StarGazer or a comparable EMS using SNMP  
A Console port or telnet connection provides access to configuration menus  
that provide options not available through the LCD menus. Depending on  
your immediate configuration requirements, you may not need to set up a PC  
immediately. Use the Console port or a telnet session when you:  
•
•
•
•
configure the Campus-REX2 as a router (only some bridging and routing  
configuration is available using the LCD)  
want to change the HDSL transmission rate and do not want to use the  
LCD menus  
will set additional configuration options at this time, such as system or  
REX2  
want to view performance statistics for the HDSL and 10/100Base-T  
interfaces  
If you want to set up a PC at this time, refer to “Setting Up Access to the  
Campus Unit” on page 8.  
8
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Chapter 1 - Installing and Accessing the REX2  
Connecting to the Campus Unit Console Port  
Use a terminal or a PC with terminal emulation software (both will be referred  
to as PC) connected to the Console port to configure Campus system options,  
manage the unit, and generate system reports. The PC connects to the Console  
port on the desktop unit, the line unit (in a Campus-Star chassis), or the  
CMU-810 installed in the Campus-Star chassis.  
1
Connect the Console adapter into the standard 9-pin COM port on the PC  
and tighten the attached screws.  
2
Plug one end of the console cable into the PC’s COM port or console  
adapter, then do one of the following:  
•
If the Campus-REX2 is installed into a desktop unit, connect the  
other end of the console cable into the desktop unit Console port.  
Campus-RS Desktop Unit  
PC or terminal  
9-pin COM  
port  
Console port  
Lin  
R
k/A  
ctivity  
EX  
2
R
outer  
H
U
B
M
D
I
M
D
I-X  
10 Base-T  
100  
P
C
B
ase-Tx  
120  
or 220  
V
A
C@60Hz  
V
A
.2A MCa@x50Hz  
Console adapter  
Black cable  
(Category 3)  
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9
   
Chapter 1 - Installing and Accessing the REX2  
•
If the Campus-REX2 is installed in a Campus-Star chassis, do one  
of the following:  
–
plug the other end of the console cable into the Console port on  
the front of the line unit  
Campus-Star chassis  
C
M
U
-7  
1
0
M
A
N
A
G
E
M
E
Console port  
N
T
U
N
IT  
P
O
W
E
R
S
L
O
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A
L
A
R
PC or terminal  
M
S
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MINOR  
C
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LIN  
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S
IT  
C
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Cam  
HDSL  
TEST  
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LINE UsNH  
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HDSL  
TEST  
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9-pin COM  
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RS-232  
CONSOLE  
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HDSL  
TEST  
pus HR  
POR  
T
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S
IT  
RS-232  
CONSOLE  
C
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L
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HDSL  
TEST  
POR  
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S
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RS-232  
CONSOLE  
Cam  
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HDSL  
TEST  
POR  
T
LINE  
s
H
RS  
NIT  
U
RS-232  
CONSOLE  
HDSL  
TEST  
POR  
T
RS-232  
CONSOLE  
HDSL  
TEST  
POR  
T
RS-232  
CONSOLE  
POR  
T
RS-232  
CONSOLE  
RS-232  
CONSOLE  
RS-232  
CONSOLE  
Category 3 Cable  
10  
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Chapter 1 - Installing and Accessing the REX2  
–
plug the other end of the console cable into the Console port of  
the CMU-810 Management unit (when installed), as described  
in the Campus-Star with CMU-810 User Manual  
Campus-Star chassis  
PC or terminal  
CMU-810  
CMU-810  
Console port  
A
L
A
R
M
S
M
A
J
O
R
MANA  
M
I
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H
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T
IN  
E
RS  
9-pin COM  
port  
U
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RS-232  
C
am  
HDSL  
TEST  
pu  
LIN  
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HR  
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U
S
IT  
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C
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pus HR  
LIN  
HDSL  
TEST  
POR  
T
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UN  
S
I
HDSL  
TEST  
POR  
T
Cam  
pu  
POR  
T
LIN  
s
H
RS  
NIT  
Adapter  
E
U
RS-232  
CONSOLE  
C
am  
pu  
LIN  
U
HDSL  
POR  
T
s
H
R
NIT  
E
S
TEST  
RS-232  
CONSOL
Cam  
pu  
HDSL  
TEST  
POR  
T
LIN  
s
H
RS  
NIT  
E
U
RS-232  
CONSOLE  
C
ampu  
HDSL  
TEST  
POR  
T
L
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RS-232  
CONSOLE  
HDSL  
TEST  
POR  
T
RS-232  
CONSOLE  
HDSL  
TEST  
POR  
T
P
a
ir  
RS-232  
CONSOLE  
POR  
T
P
a
ir  
RS-232  
CONSOLE  
P
a
ir  
RS-232  
CONSOLE  
P
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Cable  
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RS-2  
3
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Pair  
P
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3
Configure the terminal or PC terminal emulation software with the  
following communications settings:  
•
•
•
•
•
9600 baud  
no parity  
8 data bits  
1 stop bit  
no hardware flow control  
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Chapter 1 - Installing and Accessing the REX2  
LOGGING IN  
Access the Campus-REX2 menus for configuration and management using  
any of these four logins, which can be concurrently connected:  
•
•
a telnet session to the Campus-REX2 (see below)  
a login to the local Campus unit through the Console port (see “Logging  
In a Local Campus Unit through the Console Port” on page 13)  
•
•
a logon from a remote Campus unit through its Main Menu (see  
“Logging On a Remote Campus Unit” on page 15)  
a login through the CMU in the Campus-Star chassis  
Logging In a Campus Unit Using Telnet  
Use telnet protocol to access the  
Campus unit for configuration and  
management over the Internet. From the  
Windows Start menu, select Run. Enter  
the telnet command and the IP address  
for the Campus-REX2 (default IP  
address is 192.168.1.1). The timeout for  
disconnecting a telnet session is five minutes (time frame with no keyboard  
activity to the Campus unit). The following login screen is displayed:  
TELNET LOGIN PASSWORD >  
Enter the configured password (default password is ENTER ) to log on the  
Campus-REX2 Main Menu.  
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Chapter 1 - Installing and Accessing the REX2  
Logging In a Local Campus Unit through the Console Port  
You previously set up the terminal communication settings (Step 3 on page  
1-11) for your PC to access the Campus unit. From your terminal emulation  
software or your terminal, do the following:  
1
Press the SPACEBAR on the PC keyboard several times until the baud rate  
is established and the Login Password screen is displayed as shown  
below.  
Jul 07, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote Unit ID: Inactive  
Circuit ID:  
Remote I/F: Inactive  
LOGIN PASSWORD >  
If the system does not respond when you attempt to log on, ensure that  
hardware flow control is turned off in the terminal emulation software on  
the PC or for the terminal.  
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Chapter 1 - Installing and Accessing the REX2  
2
Press ENTER (default password) to log on. If a password was previously  
configured, type that password then press ENTER . The Main Menu is  
displayed.  
Jul 07, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote Unit ID: Inactive  
Circuit ID:  
Remote I/F: Inactive  
MAIN MENU  
1) SYSTEM STATUS  
2) REX2 CONFIGURATION AND STATUS  
3) SYSTEM CONFIGURATION  
4) MAINTENANCE  
5) REMOTE LOGON  
(L)ogout  
ENTER CHOICE>  
Once you are logged into the Campus unit through the console port, there is  
no timeout defined for the session. You will stay connected until you either  
log out or the Campus unit detects a disconnected console cable (DTR signal  
changes to inactive).  
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Chapter 1 - Installing and Accessing the REX2  
Logging On a Remote Campus Unit  
Log on the remote Campus unit which is at the far end of the HDSL  
connection from the local Campus unit you are logged into. The remote  
Campus unit is accessed through the Main Menu of the local Campus unit:  
1
From the Main Menu of the local Campus-REX2, type 5 then press  
ENTER . The following message is displayed:  
Enter <ESC><ESC> to Exit Remote Login Mode.  
Remote Login, Please wait. . . . . .  
You can exit from this function or from the remote login by pressing  
ESC twice. The following logon screen is displayed.  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Central  
Local I/F: REX2  
Remote I/F: REX2  
Circuit ID:  
Southeast line 421  
REMOTE_LOGON PASSWORD >  
The menu header changes to indicate the remote unit ID as the local unit,  
and local unit ID as the remote. This shows that the terminal program is  
physically connected to the local unit, but is configuring as if it were  
connected to the remote unit.  
If the remote unit is also a Campus-REX2, the screens and procedures on  
the Remote Main Menu are identical to those on the Local Main Menu,  
except the REMOTE LOGON option is not available. If the remote unit  
is not a Campus-REX2, the screens support that remote interface card  
(see the appropriate interface card user manual for a description of the  
screens and configuration options).  
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Chapter 1 - Installing and Accessing the REX2  
LOGGING OFF  
From the Main Menu, type L then press ENTER to logout of the unit menus.  
If the Main Menu is not the current menu, type R or M (when available) then  
press ENTER to return to the Main Menu where you can logout as described  
above. The logout procedure is the same whether you are connected to the  
console port or through a telnet session.  
USING THE MENUS  
The bottom of each menu screen identifies all of the keys you can use on that  
screen. Several keys operate identically on all of the menu screens:  
To:  
Do this:  
Access menu items  
Type the number of the item then press ENTER .  
Return to the previous menu Type R then press ENTER .  
Return to the Main Menu  
Type M then press ENTER when the menu is more  
than one level below the Main Menu.  
Clear or update status  
information  
•
Type C then press ENTER to clear or reset the  
information on a status screen.  
•
Type U then press ENTER to update the  
information on a status screen.  
Configure options as described below:  
For this option type:  
Do this:  
Select a value from a list of  
predefined values  
1 Type the number of the option then press ENTER .  
The option setting changes to the next value in the  
list and the screen redraws.  
2 Repeat the first step until the option is set to the  
preferred value.  
Type in required information 1 Type the number of the option then press ENTER .  
The screen prompts you for information.  
2 Type the information in the format requested then  
press ENTER .  
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Chapter 1 - Installing and Accessing the REX2  
When you have selected or entered configuration changes for some  
parameters such as bridging or routing, you must save those changes for them  
to be permanent (saved if power to the Campus-REX2 is cycled). Type R  
from a configuration screen until you return to the root for that configuration  
and then save the changes. For example, the REX2 Configuration and Status  
screen is the root for REX2 configuration.  
OPERATING WITH DEFAULT VALUES  
Campus-REX2 can be operated using its default settings which include:  
•
•
•
HDSL Operating Mode set to Standard Mode  
Standard Mode HDSL Rate set to T1  
network protocol set to bridge, with the encapsulation format set to  
cHDLC  
•
•
Spanning Tree protocol disabled  
Timing Source set to Internal  
Set other configurable options to customize the Campus system to your  
network requirement as described in the following chapters. The LAN port  
has a default IP address assigned (192.168.1.1) that you can change to fit your  
IP networking scheme.  
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Chapter 1 - Installing and Accessing the REX2  
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CONFIGURING  
HDSL PARAMETERS  
2
Campus units have a default HDSL configuration to operate in Standard  
Mode with a T1 (1.544 Mbps) HDSL Rate. This default configuration is  
compatible with other Campus-RS and Campus-HRS products (including the  
Campus-T1 desktop units and line units) if you choose to operate them in  
their default configuration.  
For:  
See Page:  
Configuring HDSL Parameters  
Configuring HDSL Alarms  
20  
26  
You can also configure the HDSL parameters through the LCD menus.  
See “Using the LCD for Configuration and Management” on page 7-97  
for instructions on using the LCD panel. To view system performance and  
other status information, see “Monitoring and Testing the Campus System”  
on page 5-73.  
Changes to the HDSL operating mode or transmission rate are  
not automatically made to the remote unit. These changes  
must be made at both the local and remote units for the HDSL  
link to be re-established. If the remote unit is not easily  
accessible, you can follow the instructions in “Logging On a  
Remote Campus Unit” on page 1-15 to use a PC for a remote  
logon (if an HDSL link is up) and make the preferred change.  
When you change the HDSL settings on the remote unit, the  
HDSL link is lost; it is re-established when you make the  
identical change(s) on the local unit.  
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Chapter 2 - Configuring HDSL Parameters  
CONFIGURING HDSL PARAMETERS  
Access the HDSL configuration screen, then configure parameters.  
Accessing HDSL Configuration  
From the Main Menu (page 14), type 3 then press ENTER to access the  
System Settings Menu.  
Jul 07, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote Unit ID: Inactive  
Circuit ID:  
Remote I/F: Inactive  
SYSTEM SETTINGS MENU  
1) SYSTEM PARAMETERS  
2) HDSL PARAMETERS  
(R)eturn  
ENTER CHOICE>  
From the System Settings Menu, type 2 then press ENTER to access the  
HDSL Parameters screen. From this screen, you can configure or change  
values. Standard Mode is the default HDSL Parameters screen.  
Jul 07, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote Unit ID: Inactive  
Circuit ID:  
Remote I/F: Inactive  
STANDARD MODE HDSL PARAMETERS  
1) HDSL Operating Mode: Standard (Standard, Extended)  
2) Transceiver Mode:  
3) HDSL Rate:  
Auto  
T1  
(Auto, Master, Slave)  
(T1, E1, 768)  
Enter (S)ave to apply changes !  
(S)ave (R)eturn (M)ain Menu  
ENTER CHOICE>  
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Chapter 2 - Configuring HDSL Parameters  
Selecting HDSL Parameters  
You can use the default HDSL setting for your Campus-RS unit (when also  
using the default settings on the remote unit to which this unit connects)  
which are:  
•
•
standard for the HDSL operating mode  
auto for the transceiver mode (determines which device is the master  
or slave)  
•
T1 for the HDSL rate  
If you want to change any of these parameters, select one of the following  
sections based on the HDSL operating mode you will use. Campus-RS offers  
these two HDSL operating modes:  
•
Standard mode (page 22) provides compatibility between a Campus-RS  
product and an earlier Campus product (legacy Campus) that has a  
HDSL interface including T1, E1, or 768:  
–
–
–
for T1, the maximum transmission rate is 1.544 Mbps over 2 pairs  
for E1, the maximum transmission rate is 2.048 Mbps over 2 pairs  
for 768, the transmission rate is 768 kbps over 1 pair  
•
Extended mode (page 23) provides a fractional rate selection between the  
HDSL interfaces of two Campus-RS products. The rate is selectable as  
follows:  
–
for 1 pair in 64 kbps increments, starting at 128 kbps up to  
2.304 Mbps  
–
for 2 pair in 128 kbps increments, starting at 256 kbps up to  
4.608 Mbps  
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Chapter 2 - Configuring HDSL Parameters  
Using Standard Mode  
Standard mode is the default configuration for the HDSL operating mode.  
When standard mode is selected, only three HDSL rates (T1, E1, and 768) are  
available. You can select any of the three options for transceiver mode,  
however.  
1
From the HDSL Parameters menu, type 1 then press ENTER if the  
HDSL Operating Mode is set to Extended. Standard is now displayed as  
the HDSL Operating Mode.  
It is recommended that you leave the Transceiver Mode  
option set to Auto unless you require that a particular end of  
the HDSL connection be the Master or Slave.  
Also, this value cannot be changed if the HDSL link is up.  
2
To change the Transceiver Mode, type 2 then press ENTER . The  
Transceiver Mode changes to the next setting. Repeat until the preferred  
setting is selected:  
•
•
•
Master initiates the HDSL link. The other Campus unit must be set  
to Slave or Auto.  
Slave waits for the other Campus unit to initiate the HDSL link. The  
other unit must be set to Master or Auto.  
Auto (default) automatically switches between Master and Slave  
until an HDSL link is established.  
The Transceiver Mode option determines the hierarchy of the two  
Campus units when attempting to establish an HDSL link.  
3
To change the HDSL Rate, type 3 then press ENTER . The HDSL Rate  
changes to the next setting. Repeat until the HDSL Rate is set to the  
preferred setting of T1 (default), E1, or 768.  
4
5
Type S to save and apply HDSL changes as prompted by:  
Enter (S)ave to apply changes !  
To exit the menu, type R (go back one screen) or M (return to the Main  
Menu).  
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Chapter 2 - Configuring HDSL Parameters  
Using Extended Mode  
With Extended mode, the HDSL link can comprise either one or two loops  
with a rate selection in 64 (1 pair) or 128 (2 pair) kbps increments. The  
transmission rate between two Campus-RS products is up to 4.608 Mbps with  
two pair or 2.304 Mbps with one pair. Both the one loop network or two loop  
network operate only in full-duplex transmission.  
1
From the HDSL Parameters menu, type 1 then press ENTER . The  
HDSL Operating Mode options changes from Standard to Extended as  
shown below.  
Jul 07, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote Unit ID: Inactive  
Circuit ID:  
Remote I/F: Inactive  
EXTENDED MODE HDSL PARAMETERS  
1) HDSL Operating Mode: Extended (Standard, Extended)  
2) Transceiver Mode:  
3) HDSL Loop Mode:  
4) HDSL Rate:  
Auto  
2 Loops  
256  
(Auto, Master, Slave)  
(1 Loop, 2 Loops)*  
*Note:  
1 Loop = single loop, full duplex  
2 Loops = two loops, full duplex  
Enter (S)ave to apply changes !  
(S)ave (R)eturn (M)ain Menu  
ENTER CHOICE>  
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Chapter 2 - Configuring HDSL Parameters  
It is recommended that you leave the Transceiver Mode  
option set to Auto unless you require that particular ends of  
the HDSL connection be the Master and Slave.  
Also, this value cannot be changed if the HDSL link is up.  
2
To change the Transceiver Mode, type 2 then press ENTER . The  
Transceiver Mode changes to the next setting. Repeat until the preferred  
setting is selected:  
•
•
•
Master initiates the HDSL link. The other Campus unit must be set  
to Slave or Auto.  
Slave waits for the other Campus unit to initiate the HDSL link. The  
other unit must be set to Master or Auto.  
Auto (default) automatically switches between Master and Slave  
until an HDSL link is established.  
The Transceiver Mode option determines the hierarchy of the two  
Campus units when attempting to establish an HDSL link.  
3
4
To change the HDSL Loop Mode from 1 Loop (default) to 2 Loop, type  
3 then press ENTER .  
To select an HDSL Rate, type 4 then press ENTER . The Select HDSL  
Rate screen that is displayed is dependent on whether you selected  
1 Loop or 2 Loop for the HDSL Loop Mode. The minimum and  
maximum rates are:  
•
for 1 Loop, 128 kbps is the minimum and 2304 Mbps is the  
maximum selected in 64 kbps increments; the default is 128 kbps  
•
for 2 Loop, 256 kbps is the minimum and 4608 Mbps is the  
maximum selected in 128 kbps increments; the default is 256 kbps  
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Chapter 2 - Configuring HDSL Parameters  
Choose a rate from one of the following:  
•
For 1 Loop, the Select HDSL Low Rate screen is displayed. To  
select a rate, type a number from 2 to 36 then press ENTER .  
Jul 07, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote Unit ID: Inactive  
Circuit ID:  
Remote I/F: Inactive  
SELECT HDSL LOW RATE  
Current HDSL Rate: 128  
Current Loop Mode: 1 Loop  
1) N/A  
13) 832 kbps  
14) 896 kbps  
15) 960 kbps  
16) 1024 kbps  
17) 1088 kbps  
18) 1152 kbps  
19) 1216 kbps  
20) 1280 kbps  
21) 1344 kbps  
22) 1408 kbps  
23) 1472 kbps  
24) 1536 kbps  
25) 1600 kbps  
26) 1664 kbps  
27) 1728 kbps  
28) 1792 kbps  
29) 1856 kbps  
30) 1920 kbps  
31) 1984 kbps  
32) 2048 kbps  
33) 2112 kbps  
34) 2176 kbps  
35) 2240 kbps  
36) 2304 kbps  
2) 128 kbps  
3) 192 kbps  
4) 256 kbps  
5) 320 kbps  
6) 384 kbps  
7) 448 kbps  
8) 512 kbps  
9) 576 kbps  
10) 640 kbps  
11) 704 kbps  
12) 768 kbps  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
•
For 2 Loop, the Select HDSL High Rate screen is displayed. To  
select a rate, type a number from 2 to 36 then press ENTER .  
Jul 07, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote Unit ID: Inactive  
Circuit ID:  
Remote I/F: Inactive  
SELECT HDSL HIGH RATE  
Current HDSL Rate: 256  
Current Loop Mode: 2 Loops  
1) N/A  
13) 1664 kbps  
14) 1792 kbps  
15) 1920 kbps  
16) 2048 kbps  
17) 2176 kbps  
18) 2304 kbps  
19) 2432 kbps  
20) 2560 kbps  
21) 2688 kbps  
22) 2816 kbps  
23) 2944 kbps  
24) 3072 kbps  
25) 3200 kbps  
26) 3328 kbps  
27) 3456 kbps  
28) 3584 kbps  
29) 3712 kbps  
30) 3840 kbps  
31) 3968 kbps  
32) 4096 kbps  
33) 4224 kbps  
34) 4352 kbps  
35) 4480 kbps  
36) 4608 kbps  
2) 256 kbps  
3) 384 kbps  
4) 512 kbps  
5) 640 kbps  
6) 768 kbps  
7) 896 kbps  
8) 1024 kbps  
9) 1152 kbps  
10) 1280 kbps  
11) 1408 kbps  
12) 1536 kbps  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
5
6
Type R to exit the menu. (Typing M will return you to the Main Menu.)  
Type S to save and apply HDSL changes as prompted by:  
Enter (S)ave to apply changes !  
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Chapter 2 - Configuring HDSL Parameters  
CONFIGURING HDSL ALARMS  
You can configure options for four types of alarms:  
•
•
•
•
HDSL ES Alarm Threshold determines the number of errored seconds  
that must occur to trigger an alarm.  
HDSL Margin Alarm Threshold determines the margin, in dB, that  
triggers an alarm.  
Alarm on Local I/F LOS lets you enable or disable the local Loss of  
Signal alarm.  
Alarm on Remote I/F LOS lets you enable or disable the remote Loss of  
Signal alarm.  
Access the configuration screen, then set the options.  
Accessing HDSL Alarms Configuration  
1
From the Main Menu (page 14), type 3 then press ENTER to access the  
System Settings Menu.  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
SYSTEM SETTINGS MENU  
1) SYSTEM PARAMETERS  
2) HDSL PARAMETERS  
(R)eturn  
ENTER CHOICE>  
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Chapter 2 - Configuring HDSL Parameters  
2
From the System Settings Menu, type 1 then press ENTER . The System  
Parameters screen is displayed.  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
SYSTEM PARAMETERS  
1) CHANGE SYSTEM TIME  
2) CHANGE SYSTEM DATE  
3) CHANGE UNIT ID  
4) CHANGE CIRCUIT ID  
5) CHANGE UNIT PASSWORD  
6) HDSL ES Alarm Threshold:  
Disabled  
(Disabled, 17, 170)  
7) HDSL Margin Alarm Threshold: Disabled  
8) Local Data Port LOS Alarm:  
9) Remote Data Port LOS Alarm:  
Disabled  
Disabled  
(Disabled, Enabled)  
(Disabled, Enabled)  
10) RESTORE FACTORY DEFAULTS  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
Setting HDSL Alarms  
The default setting for all alarming is Disabled. Completing the following  
steps to either select a value or to enable the alarm reporting.  
1
To select an HDSL ES Alarm Threshold (Disabled is the default), type  
6 then press ENTER to select one of the following as the ES threshold:  
•
•
17 errored seconds occurring in a 24-hour period  
170 errored seconds occurring in a 24-hour period  
An alarm is generated when the defined threshold for HDSL errored  
seconds is exceeded, indicating a deterioration in performance. An  
errored second is one in which one or more block errors (CRC  
anomalies) or LOSW defects occur within the threshold interval.  
2
To configure the HDSL Margin Alarm Threshold:  
a
Type 7 then press ENTER .  
b
At the prompt, enter a value between 1 and 25 decibels (dB) then  
press ENTER .  
Enter Margin alarm threshold value (1-25dB), or "D"  
to disable>6  
An alarm is generated when the defined threshold for HDSL Margin is  
exceeded. Margin indicates the signal to noise ratio at a receiver point.  
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Chapter 2 - Configuring HDSL Parameters  
3
4
To enable the Local Data Port LOS Alarm, type 8 then press ENTER .  
When enabled, an alarm is generated when a loss of signal is detected at  
the data port on the local Campus unit. (To disable this alarm, repeat the  
procedure).  
To enable the Remote Data LOS Alarm, type 9 then press ENTER .  
When enabled, an alarm is generated when a loss of signal is detected at  
the data port on the local Campus unit. (To disable this alarm, repeat the  
procedure).  
The new HDSL alarm settings take effect immediately after entered and a  
save command is not required.  
28  
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CONFIGURING THE REX2  
3
The Campus-REX2 RS is a 10/100Base-T Ethernet interface card that  
provides connectivity for LAN services. The Campus-REX2, as its default  
configuration, provides IEEE 802.1d transparent MAC level bridging.  
You can change the default configuration to routing and set the appropriate  
IP parameters for the LINE and LAN. Also, you can set up parameters for  
SNMP management.  
You can use the Campus-REX2 with its default settings that include bridge  
mode, cHDLC encapsulation, and Spanning Tree protocol set to disabled. If,  
however, you require to change any of these parameters for implementing  
your network, use the procedures in this chapter.  
For:  
See Page:  
Accessing the REX2 Configuration and Status Screen  
Configuring the Campus-REX2 as a Bridge  
30  
30  
44  
60  
Configuring the Campus-REX2 as a Router  
Configuring the Campus-REX2 for SNMP Management  
You can also configure SNMP parameters which provide a way to manage  
the Campus-REX2 system over a network.  
Some of the bridging parameters can also be configured through the LCD  
menus. See “Using the LCD for Configuration and Management” on page 97  
for instruction. For an overview of bridges, routers, and other network  
management concepts, see “Internetworking and Management Overview” on  
page 119.  
The Campus-REX2 supports forwarding larger-sized VLAN frames. There is  
no configuration required to pass VLAN traffic with frame sizes between 64  
and 1536 bytes.  
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Chapter 3 - Configuring the REX2  
ACCESSING THE REX2 CONFIGURATION AND  
STATUS SCREEN  
From the Main Menu (page 1-14), type 2 then press ENTER to access the  
REX2 Configuration and Status screen.  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
REX2 CONFIGURATION AND STATUS  
100BaseT, Full Duplex, Up  
LAN STATUS:  
LINE STATUS: Standard, Auto, T1, Up  
MAC ADDRESS: 00:20:A7:01:02:08  
1) Network Protocol:  
2) Encapsulation:  
Bridge  
cHDLC  
(Bridge, Router)  
(cHDLC, PPP)  
3) Timing Source:  
Internal  
(Internal, HDSL)  
4) BRIDGE CONFIGURATION  
5) BRIDGE STATISTICS  
6) SNMP CONFIGURATION  
(R)eturn  
ENTER CHOICE>  
CONFIGURING THE CAMPUS-REX2 AS A BRIDGE  
A bridge moves information across a network from a source to a destination  
at the link layer (of an OSI reference model). The information is sent to a  
physical address known as a Media Access Control (MAC) address. See  
“MAC-Level Bridging and Spanning Tree Protocol” on page 124 for more  
information about bridging.  
This section describes how to configure the bridge (default setting) options  
found on the screen shown above for the Campus-REX2, including:  
•
•
“Configuring Bridge Protocol, Encapsulation and Timing” on page 31  
“Configuring Bridge Features” on page 32  
–
–
“Configuring Spanning Tree Protocol” on page 33  
“Configuring the Bridge Unit IP” on page 38  
•
•
“Saving the Bridge Configuration” on page 40  
“Accessing the Bridge and ARP Tables” on page 41  
30  
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Chapter 3 - Configuring the REX2  
Configuring Bridge Protocol, Encapsulation and Timing  
The Campus-REX2, as a default configuration, bridges Ethernet frames.  
1
2
Type 1 then press ENTER if bridge is not selected.  
To change the packet encapsulation, type 2 then press ENTER . Select an  
Encapsulation option:  
•
•
cHDLC for Campus-REX2 to another Campus-REX2 application  
PPP when the remote Campus unit has a synchronous interface card  
such as a V.35 or when connecting to Ethernet equipment from  
another manufacturer  
3
To change the timing source, type 3 then press ENTER . Select a timing  
source setting:  
•
Internal (default setting) which takes its timing from an internal  
oscillator  
•
HDSL which takes its timing from the HDSL link  
The Timing Source option determines the source of circuit timing on the  
HDSL link. The proper setting of the Timing Source option depends  
upon the interface card of the remote Campus unit:  
•
If the Campus-REX2 is connected to a Campus unit with another  
Campus-REX2, leave the Timing Source option set to Internal. Set  
the other end (remote) of the connection to HDSL; the Campus  
system will not operate properly if both units are set to HDSL.  
•
If the Campus-REX2 is connected to a Campus unit with a  
synchronous interface card, such as a Fractional V.35 card, the  
timing source depends on the setting of the Primary Timing Source  
option of the remote unit:  
–
Set the Timing Source to HDSL if the remote unit is set to  
Internal or Data Port.  
–
Set the Timing Source to Internal if the remote unit is set to  
HDSL.  
See the Campus-RS Fractional Interface Card User Manual for  
information on the Primary Timing Source option.  
•
If the Campus-REX2 is connected to a Campus unit with a Campus  
CSU/DS-1 or CSU/DSX-1 interface card, set the Timing Source  
option to Internal.  
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Chapter 3 - Configuring the REX2  
Configuring Bridge Features  
This section provides procedures for configuring bridging features such as  
filter aging and Spanning Tree Protocol. And, although a bridge does not  
require an IP address, you will set up IP configuration for the unit so that you  
can access it for management using SNMP, telnet, or FTP.  
1
To configure the bridge, from the REX2 Configuration and Status screen  
type 4 then press ENTER . The Bridge Configuration screen is displayed.  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
BRIDGE CONFIGURATION  
1) Bridge Filter Age (sec):  
300  
(10 - 100000)  
2) SPANNING TREE CONFIGURATION  
3) BRIDGE TABLE  
4) ARP TABLE  
UNIT IP  
5) IP Configuration:  
6) IP Address:  
Subnet Mask:  
Static  
192.168. 1.  
255.255.255.  
(Static, DHCP Client)  
1
0
7) Default Gateway:  
0
.0 .0 .0  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
The bridge and Address Resolution Protocol (ARP) tables are  
dynamically built and can be accessed from this screen. See “Viewing  
the Bridge Table” on page 41 and “Viewing the ARP Table” on page 42  
for more information.  
2
3
To set the bridge filter age, type 1 then press ENTER . Enter the filter age  
time in seconds from 10 to 100000 (300 is the default) at the prompt:  
Enter New Bridge Filter Age in Seconds : 1000  
The bridge filter age indicates the time in seconds in which a MAC  
address entry is eliminated from the bridging table if it is not relearned.  
If you want to enable Spanning Tree Protocol, continue to “Configuring  
Spanning Tree Protocol” on page 33.  
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Chapter 3 - Configuring the REX2  
Configuring Spanning Tree Protocol  
Complete this section if you want to enable Spanning Tree Protocol (STP).  
Spanning Tree Protocol is disabled as a default configuration. See “About  
Spanning Tree Protocol” on page 124 for more information about the  
protocol.  
1
From the Bridge Configuration screen (page 3-32), type 2 then press  
ENTER . The Spanning Tree Configuration screen is displayed.  
2
To enable Spanning Tree Protocol, type 1 then press ENTER . (You can  
also change the Spanning Tree option to Disabled when Enabled is  
selected by typing 1 .)  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
SPANNING TREE CONFIGURATION  
UNIT  
1) Spanning Tree Protocol:  
2) Bridge Priority:  
3) Max Age (sec):  
Enabled  
32768  
20  
(Disabled, Enabled)  
(0 - 65535)  
(6 - 40)  
4) Hello Time (sec):  
5) Forward Delay (sec):  
2
15  
(1 - 10)  
(2 - 30)  
PORTS  
6) LAN Port Priority:  
7) LAN Port Cost:  
8) Line Port Priority:  
9) Line Port Cost:  
128  
100  
128  
648  
(0 - 255)  
(0 - 65535)  
(0 - 255)  
(0 - 65535)  
10) SPANNING TREE STATUS  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
Item 10 which allows you to view Spanning Tree Status is available only  
when Spanning Tree Protocol is enabled.  
3
To set the Bridge Priority, type 2 then press ENTER . At the prompt,  
enter a value for the bridge priority between 0 and 65535 (default value  
is 32768):  
Enter New Bridge Priority : 24000  
The bridge priority is set relative to other bridges in the same bridged  
LAN. The spanning tree priority indicates how centrally located this  
bridge is in its network. A lower number indicates a more centrally  
located bridge.  
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Chapter 3 - Configuring the REX2  
4
Set the maximum age, the hello time, and the forward delay using the  
following procedures. These values are related. If you choose incorrect  
values, an error message displays  
Value entered is not within constraints:  
2 * (Forward Delay - 1) >= Max Age > 2 * (Hello  
Time + 1)  
a
To set the maximum age, type 3 then press ENTER . At the prompt,  
enter a value in seconds. This value indicates the maximum age for  
Spanning Tree information in the bridging table before it is  
discarded. The valid range is 6 to 40 seconds (default value is 20  
seconds):  
Enter New Max Age : 30  
b
c
To set the hello time, type 4 then press ENTER . At the prompt,  
enter a time interval in seconds at which the Campus-REX2 should  
send Spanning Tree Protocol packets (BPDUs). The valid range is 1  
to 10 seconds (the default value is 2 seconds):  
Enter New Hello Time : 4  
To set the forward delay, type 5 then press ENTER . At the prompt,  
enter a time interval in seconds that should be waited until the state  
of an interface can change. The valid range is 2 to 30 seconds (the  
default value is 15 seconds):  
Enter New Forward Delay : 30  
This delay prevents interface states from changing so rapidly that  
Spanning Tree Protocol cannot keep up with the current network  
topology and therefore cannot efficiently manage bridging.  
5
To set the LAN port priority, type 6 then press ENTER . At the prompt,  
enter a value for the LAN port priority between 0 and 255 (the default  
value is128):  
Enter New LAN Port Priority : 50  
Port priorities are set relative to other ports on the same bridge. The Line  
is the other port on this bridge.  
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Chapter 3 - Configuring the REX2  
6
To set the LAN port cost, type 7 then press ENTER . At the prompt,  
enter a value for the LAN port cost between 0 and 65535 (the default  
value is 100):  
Enter New LAN Port Cost : 1000  
This represents the cost for a packet to travel to the root in the current  
Spanning Tree configuration. This value is 0 if your bridge is the root  
device. The lower the transmission rate is for the LAN (10 or 100 Mbps),  
the higher you should configure its cost. When ports have the same path  
cost, port priority is considered.  
7
To set the Line port priority, type 8 then press ENTER . At the prompt,  
enter a value for the Line port priority between 0 and 255 (the default  
value is 128):  
Enter New Line Port Priority : 65  
Port priorities are set relative to other ports on the same bridge. When the  
ports simultaneously request access to the network, this priority level  
determines the order in which the ports get access. The LAN is the other  
port on this bridge.  
8
To set the Line port cost, type 9 then press ENTER . At the prompt, enter  
a value for the Line port cost between 0 and 65535 and 648 is the default  
value.  
Enter New Line Port Cost : 1250  
This represents the cost for a packet to travel to the root in the current  
Spanning Tree configuration. This value is 0 if your bridge is the root  
device. The lower the transmission rate is for the Line (HDSL rate from  
64 kbps to 4.608 Mbps), the higher is its cost. When ports have the same  
path cost, port priority is considered.  
9
Type R to return to the Bridge Configuration screen (page 3-32) from  
which you can configure other bridge parameters. (Typing M will return  
you to the Main Menu.)  
10 If you are changing only Spanning Tree Protocol parameters, go to  
“Saving the Bridge Configuration” on page 40 to save your changes.  
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Chapter 3 - Configuring the REX2  
Viewing Spanning Tree Status  
Access the Spanning Tree Status screen to view the configured  
parameters as well as information about both the bridge Line and the  
LAN ports. From the Bridge Configuration screen (page 3-32), type 2  
then press ENTER to access the Spanning Tree Configuration screen.  
Item 10 which allows you to view Spanning Tree Status is available only  
when Spanning Tree Protocol is enabled.  
1
To view Spanning Tree status, from the Spanning Tree Configuration  
screen type 1 + 0 then press ENTER .  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
SPANNING TREE STATUS  
Root Bridge:  
Root Port:  
00:20:A7:01:02:08 (this unit)  
0
Root Bridge Priority:  
32768  
Root Path Cost:  
0
Root Max Age (sec):  
Root Hello Time (sec):  
Root Forward Delay (sec):  
20  
2
15  
Time since last Topology Change (sec): 25883  
Number of Topology Changes:  
4
LAN  
listening  
LINE  
listening  
Port State:  
Designated Bridge:  
Designated Port ID:  
Designated Port Cost:  
00:20:A7:01:02:08  
1
0
00:20:A7:01:02:08  
2
0
(R)eturn (M)ain Menu  
ENTER CHOICE>  
This screen displays configured parameters and statistics for Spanning  
Tree Protocol. Spanning Tree Status indicates the following:  
•
Root Bridge indicates the MAC address of the root bridge. You are  
notified when the Campus-REX2 is designated the root bridge.  
•
Root Port, Root Bridge Priority, and Root Path Cost indicates  
the calculated values for each of these functions for the  
Campus-REX2 after the resolution of Spanning Tree (resolves  
network topology).  
•
•
Root Max Age indicates the reported maximum age for Spanning  
Tree information before it is discarded.  
Root Hello Time is the reported time interval in seconds when the  
Campus-REX2 sends Spanning Tree Protocol packets (BPDUs).  
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Chapter 3 - Configuring the REX2  
•
•
Time since last topology change indicates the time in seconds since  
Spanning Tree last changed its topology.  
Number of topology changes indicates the total number of times that  
Spanning Tree changed its topology.  
The following indicates information about each Spanning Tree port on  
this bridge (see ANSI/IEEE Standard 802.1D for definitions):  
•
Port state for the LAN and Line ports indicates one of the following:  
–
–
–
–
–
disabled  
blocking  
listening  
learning  
forwarding  
•
•
Designated Bridge lists the MAC address of these bridge ports.  
Designated Port ID assigns a number for each port on this bridge  
(Line and LAN).  
•
Designated Port Cost shows the calculated cost for each port on this  
bridge.  
2
Type R to return to the Bridge Configuration screen (page 3-32) or  
type M to return to the Main Menu.  
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Chapter 3 - Configuring the REX2  
Configuring the Bridge Unit IP  
The Unit IP configuration sets up the way that the bridge receives its  
IP configuration (statically or dynamically) and then provides fields where  
the IP address, subnet mask, and default gateway are entered.  
1
To configure the Unit IP information, from the REX2 Configuration and  
Status screen type 4 then press ENTER . The Bridge Configuration  
screen is displayed.  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
BRIDGE CONFIGURATION  
1) Bridge Filter Age (sec):  
300  
(10 - 100000)  
2) SPANNING TREE CONFIGURATION  
3) BRIDGE TABLE  
4) ARP TABLE  
UNIT IP  
5) IP Configuration:  
6) IP Address:  
Subnet Mask:  
Static  
192.168. 1.  
255.255.255.  
(Static, DHCP Client)  
1
0
7) Default Gateway:  
0.  
0
.0 .0  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
A DHCP server should be set up and active on your LAN prior  
to enabling DHCP client for the Campus-REX2 LAN port.  
1
To select a dynamic IP configuration for the bridge, type 5 then press  
ENTER to select DHCP Client. Static is the default configuration.  
When set to DHCP Client, the Campus-REX2 LAN port automatically  
receives IP configuration (IP address, subnet mask, and default gateway)  
from a DHCP server on the LAN and displays this configuration in those  
respective fields on the screen.  
When the IP Configuration is set to static, enter the IP address,  
subnet mask, and default gateway for the Campus-REX2 LAN port  
as described in steps 2 and 3.  
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Chapter 3 - Configuring the REX2  
2
If you choose static IP configuration, type 6 then press ENTER . At the  
prompt, enter the local IP address and subnet mask for the  
Campus-REX2 LAN port.  
Required format is nnn.nnn.nnn.nnn  
Enter IP Address: 10.0.0.1  
Enter Subnet Mask (<CR> only=default Mask  
255.0.0.0): 255.0.0.0  
This parameter must be set for the Campus-REX2 to respond to an  
application (such as SNMP, telnet, and FTP) that uses the IP protocol.  
The subnet mask allows the Campus-REX2 to determine if a host, such  
as an SNMP management station or trap receiver, is on the same local  
subnet. If it is, the Campus-REX2 can send messages directly to the host;  
if not, messages must be sent through a default router. This must be set  
for the Campus-REX2 to respond to applications that use the IP protocol.  
3
If you choose static IP configuration, type 7 then press ENTER to  
configure the default gateway. At the prompt, enter the IP address of the  
default gateway through which the Campus-REX2 can reach a host  
(SNMP station or trap receiver) on another network. The default value  
for this parameter is 0.0.0.0.  
Required format is nnn.nnn.nnn.nnn  
Enter Default Gateway: 192.150.10.50  
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39  
   
Chapter 3 - Configuring the REX2  
Saving the Bridge Configuration  
Save all configuration you have completed for the REX2 bridge.  
Do not remove power to the Campus unit or disconnect the  
Line and LAN side network connections when upgrading  
software or saving configuration.  
1
Type R and press ENTER until you return to the REX2 Configuration  
and Status screen (page 3-30).  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
REX2 CONFIGURATION AND STATUS  
100BaseT, Full Duplex, Up  
LAN STATUS:  
LINE STATUS: Standard, Auto, T1, Up  
MAC ADDRESS: 00:20:A7:01:02:08  
1) Network Protocol:  
2) Encapsulation:  
Bridge  
cHDLC  
(Bridge, Router)  
(cHDLC, PPP)  
3) Timing Source:  
Internal  
(Internal, HDSL)  
4) BRIDGE CONFIGURATION  
5) BRIDGE STATISTICS  
6) SNMP CONFIGURATION  
7) SAVE REX2 CONFIGURATION  
WARNING: Configuration change(s) will be lost if not saved before  
resetting or powering unit down.  
(R)eturn  
ENTER CHOICE>  
2
Type 7 to save changes. The following message is displayed to show  
that the save in progress:  
WARNING: Do not power off unit or remove LAN  
or Line connection.  
Saving REX2 configuration; Please wait...  
The following message is displayed when the save is completed:  
REX2 configuration saved  
Hit Any Key to Continue  
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Chapter 3 - Configuring the REX2  
Accessing the Bridge and ARP Tables  
The bridge table shows MAC addresses that are dynamically learned by the  
Campus-REX2 (see “Viewing the Bridge Table” on page 41). The ARP table  
shows the MAC address associated with each IP address with which the  
bridge is communicating. The ARP table can be accessed from either the  
bridge or router configuration screen (see “Viewing the ARP Table” on  
page 42).  
Viewing the Bridge Table  
The bridge table contains a maximum of 2045 entries. These entries are aged  
out of the table in the time frame that you enter when “Configuring Spanning  
Tree Protocol” on page 33.  
1
2
3
From the Main Menu (page 1-14), type 2 then press ENTER to access  
the REX2 Configuration and Status screen. Ensure Bridge is selected.  
From the REX2 Configuration and Status screen, type 4 then press  
ENTER . The Bridge Configuration screen is displayed.  
From the Bridge Configuration screen, type 3 then press ENTER . The  
Bridge Table is displayed.  
BRIDGE TABLE  
Total entries: 57  
MAC ADDRESS  
STATUS AGE(sec)  
00:00:23:00:12:02 learned  
00:00:23:00:12:03 learned  
00:00:23:00:12:01 learned  
00:00:23:00:12:06 learned  
00:00:23:00:12:07 learned  
00:00:23:00:12:04 learned  
00:00:23:00:12:05 learned  
00:00:23:00:12:0A learned  
00:00:23:00:12:0B learned  
00:00:23:00:12:08 learned  
00:00:23:00:12:09 learned  
00:00:23:00:12:0E learned  
00:00:23:00:12:0F learned  
00:00:23:00:12:0C learned  
00:00:23:00:12:0D learned  
00:00:23:00:12:12 learned  
5
5
6
5
5
5
5
5
5
5
5
4
4
4
4
4
(P)revious (N)ext (F)ind (E)ntire table  
(U)pdate table (C)lear table  
(R)eturn (M)ain Menu  
TABLE>  
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Chapter 3 - Configuring the REX2  
4
Enter any of the following:  
•
•
•
P to access the previous screen of the table  
N to access the next screen of the table  
F to find a specific table entry; the user is prompted to specify a  
MAC address for the destination device:  
Required format is nn:nn:nn:nn:nn:nn  
Enter Destination MAC Address:  
•
E to display all entries in a table without pages; this provides you  
the capability to capture this information to a file using a terminal  
emulation software (such as HyperTerminal or ProComm)  
•
•
U to refresh or update the table entries  
C to clear all entries from the table  
Viewing the ARP Table  
The ARP table can be accessed through either the Bridge or the Router  
configuration screens. An ARP table lists MAC addresses that are bound to  
IP addresses. The ARP table can contain a maximum of 60 entries with a  
fixed expiration time of 300 seconds. The ARP table entries are sorted by the  
IP address.  
1
From the Main Menu (page 1-14), type 2 then press ENTER to access  
the REX2 Configuration and Status screen. Either Bridge or Router can  
be selected.  
2
From the REX2 Configuration and Status screen, type 4 then press  
ENTER . Either the Bridge Configuration screen or Router Configuration  
screen is displayed.  
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Chapter 3 - Configuring the REX2  
3
Do one of the following:  
•
From the Bridge Configuration screen, type 4 then press ENTER .  
The ARP Table is displayed.  
•
From the Router Configuration screen, type 6 then press ENTER .  
The ARP Table is displayed.  
ARP TABLE  
MAC ADDRESS  
IP ADDRESS  
PORT  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
00:00:00:00:00:01  
00:00:00:00:00:03  
00:00:00:00:00:04  
00:00:00:00:00:06  
00:00:00:00:00:07  
00:00:00:00:00:09  
00:00:00:00:00:0B  
00:00:00:00:00:0C  
00:00:00:00:00:0F  
00:00:00:00:00:11  
00:00:00:00:00:12  
00:00:00:00:00:14  
00:00:00:00:00:15  
00:00:00:00:00:18  
00:00:00:00:00:19  
00:00:00:00:00:1B  
156.10 .0 .1  
156.10 .0 .3  
156.10 .0 .4  
156.10 .0 .6  
156.10 .0 .7  
156.10 .0 .9  
156.10 .0 .11  
156.10 .0 .12  
156.10 .0 .15  
156.10 .0 .17  
156.10 .0 .18  
156.10 .0 .20  
156.10 .0 .21  
156.10 .0 .24  
156.10 .0 .25  
156.10 .0 .27  
(P)revious (N)ext (F)ind (E)ntire table  
(U)pdate table (C)lear table  
(R)eturn (M)ain Menu  
TABLE>  
4
Enter any of the following:  
•
•
P to access the previous screen of the table  
N to access the next screen of the table  
•
F to find a specific table entry; the user is prompted to specify an  
IP address for the destination device:  
Required format is nnn.nnn.nnn.nnn  
Enter Destination IP Address: 156.10.0.28  
•
E to display all entries in a table without pages; this provides you  
the capability to capture this information to a file using a terminal  
emulation software (such as HyperTerminal or ProComm)  
•
•
U to refresh or update the table entries  
C to clear all entries from the table  
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Chapter 3 - Configuring the REX2  
CONFIGURING THE CAMPUS-REX2 AS A ROUTER  
A router moves information across a network from a source to a destination  
at the network layer (of an OSI reference model). The information is sent to  
an IP address. The router can dynamically learn routes for forwarding data,  
in addition to providing the configuration for up to 32 static paths for routed  
data. See “IP Routing” on page 126 for more information about routing.  
From the Main Menu (page 1-14), type 2 then press ENTER to access the  
REX2 Configuration and Status screen.  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
REX2 CONFIGURATION AND STATUS  
100BaseT, Full Duplex, Up  
LAN STATUS:  
LINE STATUS: Standard, Auto, T1, Up  
MAC ADDRESS: 00:20:A7:01:02:08  
1) Network Protocol:  
2) Encapsulation:  
Bridge  
cHDLC  
(Bridge, Router)  
(cHDLC, PPP)  
3) Timing Source:  
Internal  
(Internal, HDSL)  
4) BRIDGE CONFIGURATION  
5) BRIDGE STATISTICS  
6) SNMP CONFIGURATION  
(R)eturn  
ENTER CHOICE>  
This section describes how to configure the routing options found on this  
screen for the Campus-REX2, including:  
•
•
“Configuring Routing Protocol, Encapsulation and Timing” on page 45  
“Configuring Routing Features” on page 46  
–
–
–
“Configuring the IP Addresses” on page 47  
“Configuring RIP” on page 49  
“Configuring and Deleting Static IP Routes” on page 51  
•
•
•
“Configuring DHCP Services” on page 53  
“Saving the Router Configuration” on page 55  
“Accessing the Routing Tables” on page 56  
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Chapter 3 - Configuring the REX2  
Configuring Routing Protocol, Encapsulation and Timing  
The Campus-REX2, as a default configuration, is set to bridge data. You can,  
however, change this setting for the Campus-REX2 to be a router. In the  
following procedures, you can set up the router encapsulation and timing  
source.  
You can only configure the Campus-REX2 as a router through  
connection to the Console port or a Telnet session. Most  
router options are not configurable through the LCD menus.  
1
2
Type 1 then press ENTER to select Router as the Network Protocol.  
To change the packet encapsulation, type 2 then press ENTER . Select an  
Encapsulation option:  
•
•
cHDLC for Campus-REX2 to another Campus-REX2 application  
PPP when the remote Campus unit has a synchronous interface card  
such as a V.35 or when connecting to Ethernet equipment from  
another manufacturer  
3
To change the timing source, type 3 then press ENTER . Select a timing  
source setting:  
•
Internal (default setting) which takes its timing from an internal  
oscillator  
•
HDSL which takes its timing from the HDSL link  
The Timing Source option determines the source of circuit timing on the  
HDSL link. The proper setting of the Timing Source option depends  
upon the interface card of the remote Campus unit:  
•
If the Campus-REX2 is connected to a Campus unit with another  
Campus-REX2, leave the Timing Source option set to Internal. Set  
the other end (remote) of the connection to HDSL; the Campus  
system will not operate properly if both units are set to HDSL.  
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Chapter 3 - Configuring the REX2  
•
If the Campus-REX2 is connected to a Campus unit with a  
synchronous interface card, such as a Fractional V.35 card, the  
timing source depends on the setting of the Primary Timing Source  
option of the remote unit:  
–
Set the Timing Source to HDSL if the remote unit is set to  
Internal or Data Port.  
–
Set the Timing Source to Internal if the remote unit is set to  
HDSL.  
See the Campus-RS Fractional Interface Card User Manual for  
information on the Primary Timing Source option.  
•
If the Campus-REX2 is connected to a Campus unit with a Campus  
CSU/DS-1 or CSU/DSX-1 interface card, set the Timing Source  
option to Internal.  
Configuring Routing Features  
This section provides procedures for configuring routing features such as  
LAN and Line IP addresses and subnet masks, RIP configuration for dynamic  
routing, static routing configuration, and DHCP services. See “IP Routing”  
on page 126 for more information about the routing implementation for the  
Campus-REX2.  
To configure the router, from the REX2 Configuration and Status screen type  
4 then press ENTER . The Router Configuration screen is displayed.  
May 05, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 4.6D  
Local I/F: REX2  
15:07:12  
Remote Unit ID: Inactive  
Circuit ID:  
Remote I/F: Inactive  
ROUTER CONFIGURATION  
1) IP ADDRESS CONFIGURATION  
2) RIP CONFIGURATION  
3) STATIC ROUTE CONFIGURATION  
4) DYNAMIC ROUTE TABLE  
5) STATIC ROUTE TABLE  
6) ARP TABLE  
7) DHCP SERVICES  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
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Chapter 3 - Configuring the REX2  
The Dynamic Route (created by RIP) and ARP tables are dynamically built  
and can be accessed from this screen. The Static Route table is built from  
routes that you manually configure. For information about these routing  
tables, see:  
•
•
•
“Viewing the Dynamic Routing Table” on page 59  
“Viewing the ARP Table” on page 42  
“Managing the Static Routing Table” on page 57  
Configuring the IP Addresses  
You can configure IP addresses and subnet masks for both the Line and  
LAN ports as well as configure a default gateway for packets to be routed to  
the Internet if the next hop cannot be identified. See “Campus-REX2 IP  
Addresses” on page 129 for more information.  
1
To configure the IP address and subnet masks, type 1 then press  
ENTER . The IP Address Configuration screen is displayed.  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
IP ADDRESS CONFIGURATION  
1) LAN IP Address:  
LAN Subnet Mask:  
2) Line IP Address:  
Line Subnet Mask:  
3) Default Gateway:  
192.168. 1.  
255.255.255.  
0. 0. 0.  
255. 0. 0.  
0. 0. 0.  
1
0
0
0
0
(R)eturn (M)ain Menu  
ENTER CHOICE>  
2
To set the LAN IP address and subnet mask, type 1 then press ENTER .  
At the prompt, enter the LAN IP address and subnet mask for the  
Campus-REX2 LAN port.  
Required format is nnn.nnn.nnn.nnn  
Enter LAN IP Address: 10.0.0.1  
Enter Subnet Mask (<CR> only=default Mask  
255.0.0.0): 255.0.0.0  
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Chapter 3 - Configuring the REX2  
3
To set the Line IP address and subnet mask, type 2 then press ENTER .  
At the prompt, enter the Line IP address and subnet mask for the  
Campus-REX2 Line port.  
Required format is nnn.nnn.nnn.nnn  
Enter Line IP Address: 192.150.10.20  
Enter Subnet Mask (<CR> only=default Mask  
255.255.255.0): 255.255.255.0  
This value is the Campus-REX2 WAN port IP address. The Line  
IP address cannot be on the same subnet as the LAN port IP address.  
4
To configure the default gateway, type 3 then press ENTER . At the  
prompt, enter the IP address of the default gateway through which the  
Campus-REX2 forwards datagrams if it does not have a valid entry for  
the destination in its routing table. The default value for this parameter is  
0.0.0.0.  
Required format is nnn.nnn.nnn.nnn  
Enter Default Gateway: 192.150.10.50  
This parameter provides the default gateway through which packets are  
routed to the internet if the next hop IP address IP address cannot be  
identified. You can also configure the default gateway in the static  
routing table by entering a destination IP address of 0.0.0.0 with a subnet  
mask of 0.0.0.0 and then enter the IP address for the default gateway.  
5
6
Type R then press ENTER to return to the Router Configuration screen  
(page 3-46). (Typing M will return you to the Main Menu.)  
If you are only changing IP addresses or Default Gateway parameters, go  
to “Saving the Router Configuration” on page 55 to save your changes.  
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Chapter 3 - Configuring the REX2  
Configuring RIP  
From this screen, you can configure the parameters for Routing Information  
Protocol (RIP) to allow the propagation of routing information. Both the Unit  
(REX2 card) and Ports (LAN and Line) can be configured. See “Dynamic  
Routing” on page 129 for more information about using RIP.  
1
To configure RIP, from the Router Configuration screen type 2 then  
press ENTER . The RIP Configuration screen is displayed.  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
RIP CONFIGURATION  
UNIT  
1) RIP Host Routes:  
2) RIP Poison Reverse:  
3) RIP2 Authentication: Disabled  
4) CHANGE RIP2 PASSWORD  
Enabled  
Enabled  
(Disabled, Enabled)  
(Disabled, Enabled)  
(Disabled, Enabled)  
PORTS 5) LAN RIP Receive:  
6) LAN RIP Send:  
None  
None  
None  
None  
(None, RIP1, RIP2, Both)  
(None, RIP1, RIP2*, RIP1c*)  
(None, RIP1, RIP2, Both)  
(None, RIP1, RIP2*, RIP1c*)  
7) Line RIP Receive:  
8) Line RIP Send:  
9) DYNAMIC ROUTE TABLE  
*Note:  
RIP2 Send = send RIP2 multicast messages  
RIP1c Send = send RIP2 broadcast messages  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
2
To configure RIP for the Unit (Campus-REX2), do the following:  
a
To enable RIP Host Routes, type 1 then press ENTER . When  
enabled, Campus-REX2 accepts host routes in RIP updates.  
b
To enable RIP Poison Reverse, type 2 then press ENTER . When  
enabled, this gateway (REX2) indicates to its neighbor gateways  
that one of the gateways is no longer connected. It does this by  
setting the number of hops to the disconnected gateway to an infinite  
number of hops (16, for example).  
c
To enable RIP2 authentication, type 2 then press ENTER . RIPv2  
uses a plain-text password for authentication that you will set when  
you change the RIP2 authentication password.  
d
To change the RIP2 authentication password, type 2 then press  
ENTER (RIP2 authentication must be enabled). Enter a text string of  
up to 16 characters (including alphanumeric or symbols) at the  
prompt:  
Maximum length is 16 characters.  
Enter New RIP2 Password : rex2route  
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Chapter 3 - Configuring the REX2  
3
To configure RIP for the LAN and Line ports, do the following:  
a
b
c
To select the version of RIP packets that will be received by the  
LAN port, type 5 then press ENTER . Repeat until the preferred RIP  
version is selected:  
•
•
None indicates that a RIP version is not selected.  
RIP1 indicates that only RIPv1 packets will be received by the  
LAN port.  
•
•
RIP2 indicates that only RIPv2 packets will be received by the  
LAN port.  
Both indicates that both RIPv1 and RIPv2 packets will be  
received by the LAN port.  
To select the version of RIP packets that will be sent by the LAN  
port, type 6 then press ENTER . Repeat until the preferred RIP  
version is selected:  
•
•
None indicates that a RIP version is not selected.  
RIP1 indicates that only RIPv1 packets will be sent by the LAN  
port.  
•
•
RIP2 indicates that RIPv2 multicast packets will be sent by the  
LAN port.  
RIP1c indicates the RIPv2 broadcast messages will be sent by  
the LAN port.  
To select the version of RIP packets that will be received by the Line  
port, type 7 then press ENTER . Repeat until the preferred RIP  
version is selected:  
•
•
None indicates that a RIP version is not selected.  
RIP1 indicates that only RIPv1 packets will be received by the  
Line port.  
•
•
RIP2 indicates that only RIPv2 packets will be received by the  
Line port.  
Both indicates that both RIPv1 and RIPv2 packets will be  
received by the Line port.  
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Chapter 3 - Configuring the REX2  
d
To select the version of RIP packets that will be sent by the Line  
port, type 8 then press ENTER . Repeat until the preferred RIP  
version is selected:  
•
•
None indicates that a RIP version is not selected.  
RIP1 indicates that only RIPv1 packets will be sent by the LAN  
port.  
•
•
RIP2 indicates that RIPv2 multicast packets will be sent by the  
LAN port.  
RIPC indicates the RIPv2 broadcast messages will be sent by  
the LAN port.  
4
To view the routing table that is dynamically created by RIP, type 9 then  
press ENTER . For information about the Dynamic Route Table, go to  
page 3-59).  
5
6
Type R then press ENTER to return to the Router Configuration screen  
(page 3-46). (Typing M will return you to the Main Menu.)  
If you are only changing RIP configuration parameters, go to “Saving the  
Router Configuration” on page 55 to save your changes.  
Configuring and Deleting Static IP Routes  
Static IP routes define a fixed and manually configured path for data sent by  
the Campus-REX2 to a destination host. This table contains a maximum of  
32 explicit routes. Each route comprises a destination network, subnet mask,  
and hop count.  
You can add static routes by selecting either:  
•
•
Add Static Route as described in this section  
Static Route Table (see “Managing the Static Routing Table” on  
page 57) and using the (A)dd route command  
When you enter a static IP address that is a specific host interface, you must  
enter 255.255.255.255 as the subnet mask to include that specific host  
interface in the static routing table.  
You can also configure the default gateway in the static routing table by  
entering a destination IP address of 0.0.0.0 with a subnet mask of 0.0.0.0 and  
then entering the IP address for the default gateway.  
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Chapter 3 - Configuring the REX2  
1
From the Router Configuration screen, type 3 then press ENTER .  
The Static Route Configuration screen is displayed.  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
STATIC ROUTE CONFIGURATION  
1) ADD STATIC ROUTE  
2) DELETE STATIC ROUTE  
3) STATIC ROUTE TABLE  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
2
To add a static route, type 1 then press ENTER . Enter the IP address,  
subnet mask, and gateway IP address at the prompt for the destination  
host to which packets will be sent.  
Required format is nnn.nnn.nnn.nnn  
Enter Destination IP Address: 192.128.128.60  
Enter Destination IP Subnet Mask: 255.255.255.0  
Enter Gateway IP Address: 192.128.128.65  
Enter Hop Count: 3  
The following message is displayed:  
Route added  
Hit Any Key to Continue  
3
To delete a static route, type 2 then press ENTER . Enter the IP address  
at the prompt for the destination host you want to delete.  
Required format is nnn.nnn.nnn.nnn  
Enter Destination IP Address: 192.128.128.60  
If you do not remember the IP address for the destination you want to  
delete, go to Step 4 to view the Static Route Table.  
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4
To manage the Static Route Table, type 3 then press ENTER . The Static  
Route Table is displayed. You can also add static routes on this screen  
(see “Managing the Static Routing Table” on page 57).  
5
6
Type R then press ENTER to return to the Router Configuration screen  
(page 3-46). (Typing M will return you to the Main Menu.)  
If you are only adding a static route, go to “Saving the Router  
Configuration” on page 55 to save your changes.  
Configuring DHCP Services  
When the Campus-REX2 is configured for DHCP relay, it forwards  
DHCP requests from devices connected to the Campus-REX2 LAN port to  
a DHCP server which can be on the LAN or WAN side of the network.  
You can enter IP addresses for a primary (required) and secondary (optional)  
DHCP server. The Campus-REX2 will attempt to send a DHCP relay to the  
primary DHCP server first, and then will relay to the secondary server if the  
primary is not available. For more information, see “DHCP” on page 134.  
1
From the Router Configuration screen (page 3-46), type 7 then press  
ENTER . The DHCP Services screen is displayed.  
Jul 07, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote Unit ID: Inactive  
Circuit ID:  
Remote I/F: Inactive  
DHCP SERVICES  
None  
1) Service:  
(None, Relay)  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
The default configuration is that no DHCP services (None) are provided  
by the Campus-REX2.  
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Chapter 3 - Configuring the REX2  
2
To select DHCP Relay, type 1 then press ENTER . The following fields,  
2 and 3, are added to the screen as shown below.  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
DHCP SERVICES  
1) Service:  
Relay  
(None, Relay)  
2) Primary DHCP Server:  
3) Secondary DHCP Server:  
0
0
.0 .0 .0  
.0 .0 .0  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
3
4
5
To enter the IP address for the primary DHCP server to which the  
Campus-REX2 relays requests, type 2 then press ENTER . At the  
prompt, enter the IP address.  
Required format is nnn.nnn.nnn.nnn  
Enter Primary DHCP Server:10.0.0.26  
To delete a DHCP server, enter the IP address 0.0.0.0. If the primary  
DHCP server is deleted and a valid secondary DHCP server is defined,  
the secondary DHCP server automatically becomes the primary DHCP  
server.  
To enter the IP address for the secondary DHCP server to which the  
Campus-REX2 relays requests, type 3 then press ENTER . At the  
prompt, enter the IP address.  
Required format is nnn.nnn.nnn.nnn  
Enter Secondary DHCP Server:192.150.0.54  
To delete a DHCP server, enter the IP address 0.0.0.0. If the primary  
DHCP server is deleted and a valid secondary DHCP server is defined,  
the secondary DHCP server automatically becomes the primary DHCP  
server.  
Type R then press ENTER to return to the Router Configuration screen  
(page 3-46). (Typing M will return you to the Main Menu.)  
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6
If you are only changing DHCP configuration, go to “Saving the Router  
Configuration” on page 55 to save your changes.  
Saving the Router Configuration  
Do not remove power to the Campus unit or disconnect the  
Line and LAN side network connections when upgrading  
software or saving configuration.  
1
Type R and press ENTER until you return to the REX2 Configuration  
and Status screen (page 3-30).  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
REX2 CONFIGURATION AND STATUS  
100BaseT, Full Duplex, Up  
LAN STATUS:  
LINE STATUS: Standard, Auto, T1, Down  
MAC ADDRESS: 00:20:A7:01:02:08  
1) Network Protocol:  
2) Encapsulation:  
Router  
cHDLC  
(Bridge, Router)  
(cHDLC, PPP)  
3) Timing Source:  
Internal  
(Internal, HDSL)  
4) ROUTER CONFIGURATION  
5) ROUTER STATISTICS  
6) SNMP CONFIGURATION  
7) SAVE REX2 CONFIGURATION  
WARNING: Configuration change(s) will be lost if not saved before  
resetting or powering unit down.  
(R)eturn  
ENTER CHOICE>  
2
Type 7 to save changes. The following message is displayed to show  
that the save in progress:  
WARNING: Do not power off unit or remove LAN  
or Line connection.  
Saving REX2 configuration; Please wait...  
The following message is displayed when the save is completed:  
REX2 configuration saved  
Hit Any Key to Continue  
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Chapter 3 - Configuring the REX2  
Accessing the Routing Tables  
The Campus-REX2 has two separate routing tables. One table shows routes  
that were statically configured (“Managing the Static Routing Table” on  
page 57) and offers the capability of configuring additional static routes.  
The other table shows IP addresses that were dynamically learned by RIP  
(“Viewing the Dynamic Routing Table” on page 59).  
Do the following to access the Router Configuration screen:  
1
From the Main Menu (page 1-14), type 2 then press ENTER to access  
the REX2 Configuration and Status screen. Ensure Router is selected.  
2
From the REX2 Configuration and Status screen, type 4 then press  
ENTER . The Router Configuration screen is displayed.  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
ROUTER CONFIGURATION  
1) IP ADDRESS CONFIGURATION  
2) RIP CONFIGURATION  
3) STATIC ROUTE CONFIGURATION  
4) DYNAMIC ROUTE TABLE  
5) STATIC ROUTE TABLE  
6) ARP TABLE  
7) DHCP SERVICES  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
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Chapter 3 - Configuring the REX2  
Managing the Static Routing Table  
The entries in this routing table were configured by a user (entered statically).  
This table contains a maximum of 32 entries. You can manage entries or you  
can also add new entries from this screen. The destination shown on this  
screen is for a host route, but not for a specific host device.  
You can also configure the default gateway in the static routing table by  
entering a destination IP address of 0.0.0.0 with a subnet mask of 0.0.0.0 and  
then entering the IP address for the default gateway (see page 3-48).  
The Static Route Table can be accessed from both the Router Configuration  
and the Static Route Configuration screens.  
1
Do one of the following to access the Static Route Table:  
•
•
From the Router Configuration screen, type 5 then press ENTER .  
From the Static Route Configuration screen, type 3 then press  
ENTER . The Static Route Table is displayed.  
STATIC ROUTE TABLE  
DESTINATION  
SUBNET MASK  
GATEWAY ADDRESS  
192.150. 10. 50  
192.150. 10. 50  
192.150. 10. 50  
HOP  
1
1
192.128.128. 60  
168.120.100. 12  
172.100.200. 25  
255.255.255.252  
255.255.255.252  
255.255.255.255  
1
(P)revious (N)ext (F)ind (E)ntire table  
(C)lear table (A)dd route (D)elete route  
(R)eturn (M)ain Menu  
TABLE>  
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57  
 
Chapter 3 - Configuring the REX2  
2
Manage the Static Route Table, including adding or deleting table  
entries, by entering any of the following:  
•
•
•
P to access the previous screen of the table entries  
N to access the next screen of the table entries  
F to find a specific table entry; the user is prompted to specify an  
IP address for the destination device:  
Required format is nnn.nnn.nnn.nnn  
Enter Destination IP Address: 172.100.200.60  
•
E to display all entries in a table without pages; this provides you  
the capability to capture this information to a file using a terminal  
emulation software such as HyperTerminal or ProComm  
•
•
C to clear all entries from the table  
A to add static route table entries (also see “Configuring and  
Deleting Static IP Routes” on page 51) and the following prompt  
is displayed:  
Required format is nnn.nnn.nnn.nnn  
Enter Destination IP Address: 192.128.128.60  
Enter Destination IP Subnet Mask: 255.255.255.0  
Enter Gateway IP Address: 192.150.10.50  
Enter Hop Count: 3  
The following message is displayed:  
Route added  
Hit Any Key to Continue  
•
D to delete a static route table entry (also see “Configuring and  
Deleting Static IP Routes” on page 51) and the following prompt  
is displayed:  
Required format is nnn.nnn.nnn.nnn  
Enter Destination IP Address: 192.128.128.60  
3
4
Type R then press ENTER to return to the Router Configuration screen  
(page 3-46). (Typing M will return you to the Main Menu.)  
If you added or deleted static route entries, go to “Saving the Router  
Configuration” on page 55 to save your changes.  
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Chapter 3 - Configuring the REX2  
Viewing the Dynamic Routing Table  
The entries in this routing table were dynamically learned by RIP. This table  
contains a maximum of 2048 entries. It is accessible from both the Router  
Configuration and RIP Configuration screens.  
1
From the Router Configuration screen, type 4 then press ENTER . Or,  
from the RIP Configuration screen, type 9 then press ENTER . The  
Dynamic Route Table is displayed.  
DYNAMIC ROUTE TABLE  
Total entries: 52  
DESTINATION  
SUBNET MASK  
GATEWAY ADDRESS HOP TIMEOUT(sec) PORT  
60 .0 .0 .0  
59 .0 .0 .0  
58 .0 .0 .0  
57 .0 .0 .0  
56 .0 .0 .0  
55 .0 .0 .0  
54 .0 .0 .0  
53 .0 .0 .0  
52 .0 .0 .0  
51 .0 .0 .0  
50 .0 .0 .0  
49 .0 .0 .0  
48 .0 .0 .0  
47 .0 .0 .0  
46 .0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
255.0 .0 .0  
156.10 .18 .90  
156.10 .18 .90  
156.10 .18 .90  
156.10 .18 .90  
156.10 .18 .90  
156.10 .18 .90  
156.10 .18 .90  
156.10 .18 .90  
156.10 .18 .90  
156.10 .18 .90  
156.10 .18 .90  
156.10 .18 .90  
156.10 .18 .90  
156.10 .18 .90  
156.10 .18 .90  
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
155  
155  
155  
155  
155  
155  
155  
155  
155  
155  
155  
155  
155  
155  
155  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
LAN  
(P)revious (N)ext (F)ind (E)ntire table  
(U)pdate table (C)lear table  
(R)eturn (M)ain Menu  
TABLE>  
2
Enter any of the following:  
•
•
•
P to access the previous screen of the table entries  
N to access the next screen of the table entries  
F to find a specific table entry; the user is prompted to specify an  
IP address for the destination device:  
Required format is nnn.nnn.nnn.nnn  
Enter Destination IP Address: 51.0.0.0  
•
E to display all entries in a table without pages; this provides you  
the capability to capture this information to a file using a terminal  
emulation software such as HyperTerminal or ProComm  
•
•
U to refresh or update the table entries  
C to clear all entries from the table  
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Chapter 3 - Configuring the REX2  
CONFIGURING THE CAMPUS-REX2 FOR SNMP  
MANAGEMENT  
SNMP protocol provides a way for HP OpenView or an Element  
Management System (EMS) such as StarGazer to manage the Campus-REX2  
system over a network. A Campus-RS Management Unit (CMU), installed  
into a Campus-Star chassis, provides SNMP management for components in  
the chassis and for management of elements attached to the chassis (desktop  
units or units in other Campus-Star chassis). The EMS can directly manage a  
Campus-REX2 that is in a desktop unit or a Campus-Star chassis.  
You can also set the Campus-REX2 to perform authentication error trap  
generation. To enable this feature, do the following:  
•
•
•
Set the Authentication Trap Status to Enabled or Disabled.  
Enter an IP Address for each Trap Receiver.  
Enter a community string for each Trap Receiver.  
Accessing the SNMP Configuration  
1
From the Main Menu (page 1-14), type 2 then press ENTER to access  
the REX2 Configuration and Status screen.  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Central  
Local I/F: REX2  
Remote I/F: REX2  
Circuit ID: Southeast line 421  
REX2 CONFIGURATION AND STATUS  
LAN STATUS:  
100BaseT, Full Duplex, Up  
LINE STATUS: Standard, Auto, T1, Up  
MAC ADDRESS: 00:20:A7:01:02:08  
1) Network Protocol:  
2) Encapsulation:  
Bridge  
cHDLC  
(Bridge, Router)  
(cHDLC, PPP)  
3) Timing Source:  
Internal  
(Internal, HDSL)  
4) BRIDGE CONFIGURATION  
5) BRIDGE STATISTICS  
6) SNMP CONFIGURATION  
7) SAVE REX2 CONFIGURATION  
WARNING: Configuration change(s) will be lost if not saved before  
resetting or powering unit down.  
(R)eturn  
ENTER CHOICE>  
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2
For the REX2 Configuration and Status screen, type 6 then press  
ENTER . The SNMP Configuration screen is displayed.  
Jan 01, 1970  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1  
Local I/F: REX2  
18:05:29  
Remote I/F: REX  
SNMP CONFIGURATION  
1) Unit Name:  
2) Location:  
3) Contact:  
4) SNMP Read Only Community String:  
5) SNMP Read/Write Community String:  
6) Authentication Trap Status:  
7) Trap Receiver 1 IP Address:  
8) Trap Receiver 1 Community String:  
trap receiver 1  
public  
private  
Enabled  
(Enabled, Disabled)  
0
0. 0. 0.  
9) Trap Receiver 2 IP Address:  
10) Trap Receiver 2 Community String:  
trap receiver 2  
11) Trap Receiver 3 IP Address:  
12) Trap Receiver 3 Community String:  
trap receiver 3  
0. 0. 0.  
0. 0. 0.  
0
0
(R)eturn (M)ain Menu  
ENTER CHOICE>  
3
Continue with the following sections to enter the required parameters and  
enable authentication error trap generation.  
Entering SNMP Parameters  
On this screen, you configure parameters that identify this SNMP-managed  
device. Also, these SNMP parameters must be set to manage the  
Campus-REX2 over an SNMP network:  
•
SNMP Read Only Community String provides the authentication string  
used for SNMP read-only operations (see Step 4)  
•
SNMP Read Write Community String provides the authentication string  
used for SNMP read-write operations (see Step 5)  
To set SNMP parameters, enter the following information on the SNMP  
Configuration screen.  
1
To enter a Unit Name, type 1 then press ENTER . At the prompt, enter  
up to 32 characters (use any ASCII character) that identifies for SNMP  
management this Campus unit.  
Maximum length is 32 characters.  
Enter Unit Name: REX2_Southall  
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Chapter 3 - Configuring the REX2  
2
3
4
To enter a Location, type 2 then press ENTER . At the prompt, enter up  
to 32 characters (use any ASCII character) that indicates the location of  
this Campus unit.  
Maximum length is 32 characters.  
Enter Location: Southall_Room_421  
To enter a contact name, type 3 then press ENTER . At the prompt, enter  
up to 32 characters (use any ASCII character) that indicates the person  
who can be contacted for management of this Campus unit.  
Maximum length is 32 characters.  
Enter Contact: John Doe  
To enter the Read Only Community String, type 4 then press ENTER .  
At the prompt, enter up to 32 characters that provides a name for the  
SNMP community on the Campus-REX2 that provides read-only  
capability. Public is commonly used.  
Maximum length is 32 characters.  
Enter SNMP Read Only Community String: Public  
5
To enter the Read/Write Community String, type 5 then press ENTER .  
At the prompt, enter up to 32 characters that provides a name for the  
SNMP community on the Campus-REX2 that provides read and write  
capability. Private is commonly used.  
Maximum length is 32 characters.  
Enter SNMP Read/Write Community String: Private  
Enabling Authentication Error Trap Generation  
An authentication trap is sent out by the Campus-REX2 when it reviews  
a request that isn’t properly authenticated. For example, the request has a  
community string that doesn’t match the community string configured for  
the Campus-REX2.  
The authentication trap status is enabled as a default.  
Authentication Trap Status is enabled by default. If you want to disable it,  
type 5 then press ENTER .  
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Chapter 3 - Configuring the REX2  
Configuring Trap Receivers  
The Campus-REX2 sends traps to devices on the network, which you  
configure as trap receivers, when events or alarms occur. The following are  
traps that the Campus-REX2 can issue:  
•
•
•
•
•
coldStart  
warmStart  
linkDown  
linkUp  
authenticationFailure  
Configure the trap receivers as follows:  
1
Do the following to enter an IP address and a community string for each  
of three trap receivers that you can configure:  
a
To enter the IP address for a device on the network that will receives  
traps issued by Campus-REX2, type 7 , 9 , or 1 + 1 then press  
ENTER . At the prompt, enter the IP address:  
Required format is nnn.nnn.nnn.nnn  
Enter Trap Receiver x IP Address: 172.150.100.12  
b
To enter the community string for a device on the network that will  
receives traps issued by Campus-REX2, type 8 , 1 + 0 , or 1 + 2  
then press ENTER . At the prompt, enter the community string that  
can be up to 64 ASCII characters:  
Maximum length is 64 characters.  
Enter Trap Receiver 1 Community String: rcvr1  
2
3
Repeat Step 1 for each trap receiver you want to configure.  
Type R to return until you return to the Bridge or Router  
Configuration screen.  
4
If you are changing only SNMP parameters, go to “Saving the Bridge  
Configuration” on page 40 or “Saving the Router Configuration” on  
page 55 to save your changes.  
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MANAGING  
SYSTEM PARAMETERS  
4
This chapter describes how to configure system operating parameters for the  
Campus-REX2 including time and date, identification of the unit and circuit,  
and a configuration password. You can reset configurable operating  
parameters to their default values in the chapter. Also, you can view  
information about the product.  
For:  
See Page:  
Accessing System Configuration  
Setting the Time and Date  
Identifying the Unit and Circuit  
Setting a Password  
66  
67  
67  
69  
70  
72  
Restoring Default Values  
Viewing Product Information  
HDSL alarm parameters are configured in the section for “Configuring  
HDSL Parameters.” See “Configuring HDSL Alarms” on page 26.  
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Chapter 4 - Managing System Parameters  
ACCESSING SYSTEM CONFIGURATION  
From the Main Menu (page 1-14), type 3 then press ENTER to access the  
System Settings Menu.  
Jul 07, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote Unit ID: Inactive  
Circuit ID:  
Remote I/F: Inactive  
SYSTEM SETTINGS MENU  
1) SYSTEM PARAMETERS  
2) HDSL PARAMETERS  
(R)eturn  
ENTER CHOICE>  
From the System Settings Menu, type 1 then press ENTER to access the  
System Parameters screen. From this screen, you can enter the number  
(1—10) for the systems parameter you want to configure or change its value.  
Jul 07, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote Unit ID: Inactive  
Circuit ID:  
Remote I/F: Inactive  
SYSTEM PARAMETERS  
1) CHANGE SYSTEM TIME  
2) CHANGE SYSTEM DATE  
3) CHANGE UNIT ID  
4) CHANGE CIRCUIT ID  
5) CHANGE UNIT PASSWORD  
6) HDSL ES Alarm Threshold:  
Disabled  
(Disabled, 17, 170)  
7) HDSL Margin Alarm Threshold: Disabled  
8) Local Data Port LOS Alarm:  
9) Remote Data Port LOS Alarm:  
Disabled  
Disabled  
(Disabled, Enabled)  
(Disabled, Enabled)  
10) RESTORE FACTORY DEFAULTS  
(R)eturn  
ENTER CHOICE>  
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Chapter 4 - Managing System Parameters  
SETTING THE TIME AND DATE  
The time and date parameters provide a common time and date stamp  
for system functions such as alarm indications or performance monitoring  
histories.  
1
2
To set the time, type 1 then press ENTER .  
At the prompt, type the time in a 24-hour format as shown below then  
press ENTER .  
ENTER NEW TIME (FORMAT HH:MM:SS): 16:34:09  
The system displays this new time on System Parameters screen.  
To set the date, type 2 then press ENTER .  
3
4
At the prompt, type two numbers for the day, two number for the month,  
and the four-digit year, separated by slashes (/), then press ENTER .  
ENTER NEW DATE (FORMAT MM/DD/YYYY):04/30/2003  
The system displays this new date on System Parameters screen as  
Apr 30, 2003.  
System and date take effect immediately after the values are entered and a  
save command is not required.  
IDENTIFYING THE UNIT AND CIRCUIT  
A Campus system supports two different identifiers:  
•
•
The Unit ID indicates an individual Campus unit which can be either a  
desktop unit with an interface card or each interface card and line card  
combination in a Campus-Star chassis.  
The Circuit ID identifies the HDSL circuit between local and remote  
units and is the same for both.  
Do the following to set or change these identifiers.  
1
From the System Parameters menu, type 3 then press ENTER . At the  
prompt, enter the Unit ID using a unique identifier up to 32 characters.  
Maximum length is 32 characters.  
ENTER NEW UNIT ID: Southall Quad 4  
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Chapter 4 - Managing System Parameters  
2
Type 4 then press ENTER . At the prompt, enter a unique identifier for  
this HDSL circuit, up to 64 characters.  
Maximum length is 64 characters.  
ENTER NEW CIRCUIT ID: Southeast line 421  
The unit and circuit IDs are displayed as shown below. To configure or  
change the unit and circuit IDs for the Campus unit at the other end of the  
HDSL connection, access it using either telnet or the remote log on (see  
“Logging In” on page 12).  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Central  
Local I/F: REX2  
Remote I/F: REX2  
Circuit ID: Southeast line 421  
SYSTEM PARAMETERS  
1) CHANGE SYSTEM TIME  
2) CHANGE SYSTEM DATE  
3) CHANGE UNIT ID  
4) CHANGE CIRCUIT ID  
5) CHANGE UNIT PASSWORD  
6) HDSL ES Alarm Threshold:  
Disabled  
(Disabled, 17, 170)  
7) HDSL Margin Alarm Threshold: Disabled  
8) Local Data Port LOS Alarm:  
9) Remote Data Port LOS Alarm:  
Disabled  
Disabled  
(Disabled, Enabled)  
(Disabled, Enabled)  
10) RESTORE FACTORY DEFAULTS  
(R)eturn  
ENTER CHOICE>  
The new Unit and Circuit IDs take effect immediately after the values are  
entered and a save command is not required.  
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Chapter 4 - Managing System Parameters  
SETTING A PASSWORD  
A password prevents unauthorized access to Campus-REX2 configuration  
options via console port, TELNET, or remote Campus login. This password  
also controls access to the Campus-REX2 via FTP as required for software  
upgrade (see “Upgrading Campus Unit Software” on page 92). You can set a  
password with any combination of up to ten letters or numbers, but the first  
character must be a letter. Passwords are case-sensitive.  
From the System Parameters menu, type 5 then press ENTER . At the prompt,  
enter a password that contains up to 10 ASCII characters.  
ENTER NEW PASSWORD (10 characters maximum):  
*********  
The new password takes effect immediately after it is entered and a save  
command is not required.  
If you forget your password and cannot log onto the  
Campus-REX2, use the LCD to restore the configuration  
settings to their factory default values. This removes the  
password. For more information, see “Restoring the System  
to Default Values” on page 108.  
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Chapter 4 - Managing System Parameters  
RESTORING DEFAULT VALUES  
You can restore all (any configurable parameter including HDSL and  
network, for example) of the configuration options to their original factory  
default values. This is a way to reset configurations you may have changed  
and want returned to its original settings.  
1
From the Main Menu, type 3 then press ENTER .  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Inactive  
Local I/F: REX2  
Remote I/F: Inactive  
Circuit ID:  
Southeast line 421  
MAIN MENU  
1) SYSTEM STATUS  
2) REX2 CONFIGURATION AND STATUS  
3) SYSTEM CONFIGURATION  
4) MAINTENANCE  
5) REMOTE LOGON  
(L)ogout  
ENTER CHOICE>  
The System Parameters screen is displayed.  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Inactive  
Local I/F: REX2  
Remote I/F: Inactive  
Circuit ID:  
Southeast line 421  
SYSTEM PARAMETERS  
1) CHANGE SYSTEM TIME  
2) CHANGE SYSTEM DATE  
3) CHANGE UNIT ID  
4) CHANGE CIRCUIT ID  
5) CHANGE UNIT PASSWORD  
6) HDSL ES Alarm Threshold:  
Disabled  
(Disabled, 17, 170)  
7) HDSL Margin Alarm Threshold: Disabled  
8) Local Data Port LOS Alarm:  
9) Remote Data Port LOS Alarm:  
Disabled  
Disabled  
(Disabled, Enabled)  
(Disabled, Enabled)  
10) RESTORE FACTORY DEFAULTS  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
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Chapter 4 - Managing System Parameters  
2
To restore all values to the original factory default configuration,  
type 1 + 0 then press ENTER . At the prompt, enter y to continue  
restoring all values to the factory default or n to stop the process.  
Are You Sure (Y/N) ? y  
Restoring REX2 factory defaults; Please wait...  
REX2 factory defaults restored  
Hit Any Key to Continue...  
The system restores all configuration options to their default values.  
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Chapter 4 - Managing System Parameters  
VIEWING PRODUCT INFORMATION  
The Product Information screen displays manufacturing information about  
the Campus-REX2 RS Interface Card. To open the Product Information  
screen:  
1
From the Main Menu, type 1 then press ENTER . The System Status  
screen is displayed.  
2
Type 5 then press ENTER . The Product Information screen is displayed.  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Central  
Local I/F: REX2  
Remote I/F: REX2  
Circuit ID:  
Southeast line 421  
PRODUCT INFORMATION  
Firmware Version:  
4.6G  
5FA1  
PROM Checksum:  
Hardware Configuration:  
FF10  
Desktop  
AC  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
The Product Information screen displays the following information:  
•
the version number of the Campus-REX2 software (this also is displayed  
in the heading of all the terminal screens)  
•
•
the PROM checksum, a hexidecimal number used to verify unit PROMs  
the hardware version of the Campus-REX2 RS Interface Card  
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MONITORING AND TESTING  
THE CAMPUS SYSTEM  
5
For:  
See Page:  
Monitoring HDSL Performance  
Monitoring Current System Status  
Viewing 24-Hour Performance History  
Viewing Seven-Day Performance History  
Viewing Local Alarm History  
Viewing Ethernet Statistics  
Viewing Bridge Statistics  
75  
75  
76  
77  
79  
80  
81  
83  
85  
89  
Viewing Router Statistics  
Performing Tests  
Resetting the Campus Unit  
You can also view this information through the LCD menus. See “Using the  
LCD for Configuration and Management” on page 7-97 for instructions on  
using the LCD panel.  
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Chapter 5 - Monitoring and Testing the Campus System  
MONITORING HDSL PERFORMANCE  
Status for HDSL performance is accessed from the System Status Menu.  
1
From the Main Menu, type 1 then press ENTER .  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Central  
Local I/F: REX2  
Remote I/F: REX2  
Circuit ID: Southeast line 421  
MAIN MENU  
1) SYSTEM STATUS  
2) REX2 CONFIGURATION AND STATUS  
3) SYSTEM CONFIGURATION  
4) MAINTENANCE  
5) REMOTE LOGON  
(L)ogout  
ENTER CHOICE>  
The System Status Menu is displayed.  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Central  
Local I/F: REX2  
Remote I/F: REX2  
Circuit ID: Southeast line 421  
SYSTEM STATUS MENU  
1) CURRENT SYSTEM STATUS  
2) 24-HOUR HDSL PERFORMANCE HISTORY  
3) 7-DAY HDSL PERFORMANCE HISTORY  
4) LOCAL ALARM HISTORY  
5) PRODUCT INFORMATION  
(R)eturn  
ENTER CHOICE>  
Refer to the following sections to monitor current system status and view  
24-hour and 7-day performance histories.  
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Chapter 5 - Monitoring and Testing the Campus System  
Monitoring Current System Status  
This screen provides information on the current performance of the  
Campus system including both local and remote HDSL alarms and  
HDSL performance.  
From the System Status Menu, type 1 then press ENTER . The Current  
System Status screen is displayed.  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Central  
Local I/F: REX2  
Remote I/F: REX2  
Circuit ID: Southeast line 421  
CURRENT SYSTEM STATUS  
Local Alarms:  
Remote Alarms:  
Loopback: None  
HDSL-A  
REMOTE  
HDSL-B  
LOCAL  
--------  
mn/cr/mx  
na/na/na  
00  
LOCAL  
REMOTE  
--------  
mn/cr/mx  
na/na/na  
00  
--------  
mn/cr/mx  
--------  
mn/cr/mx  
na/na/na  
00  
Margin (dB):  
Pulse Attn (dB):  
24 Hour ES:  
24 Hour UAS:  
Last Cleared:  
na/na/na  
00  
00000  
05671  
None  
00000  
00000  
00000  
05671  
00000  
00000  
(U)pdate (C)lear  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
The Current System Status screen provides the following information:  
•
•
•
Local Alarms indicates the current local alarm status.  
Remote Alarms indicates the current remote alarm status.  
Loopback indicates the current loopback status. If no loopback is active,  
the status is none.  
•
Margin indicates the minimum (mn), current (cr), and maximum (mx)  
HDSL margin value, measured in dB, relative to the signal-to-noise ratio  
required for a Bit Error Rate (BER) of 10-7.  
•
•
•
•
Pulse Attenuation (Attn) indicates the decrease in amplitude of the  
transmitted signal as measured at the HDSL receiver (in decibels).  
24 Hour ES indicates the number of errored seconds over the last  
24 hours.  
24 Hour UAS indicates the number of unavailable seconds over the last  
24 hours.  
Last Cleared indicates the date and time when the error counter was last  
cleared.  
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The information on the Current System Status menu does not update  
automatically. To update this information, type U then press ENTER .  
To clear the 24 Hour ES and 24 Hour UAS counters, type C then press  
ENTER .  
Viewing 24-Hour Performance History  
This screen displays historical HDSL information for the last 24 hours and is  
presented in 15-minute increments.  
From the System Status Menu, type 2 then press ENTER . The 24 Hour  
HDSL Performance History screen is displayed.  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Central  
Local I/F: REX2  
Remote I/F: REX2  
Circuit ID: Southeast line 421  
24 HOUR HDSL PERFORMANCE HISTORY  
HDSL-A  
HDSL-B  
LOCAL  
ES/UAS  
REMOTE  
ES/UAS  
LOCAL  
ES/UAS  
REMOTE  
ES/UAS  
--------  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
--------  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
--------  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
--------  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
000/000  
11:00  
11:15  
11:30  
11:45  
12:00  
12:15  
12:30  
12:45  
Current  
(P)revious (N)ext (U)pdate  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
The 24 Hour HDSL Performance History screen provides the following  
information:  
•
HDSL-A represents a single pair or the first pair (or loop) of a two-pair  
implementation (dependent on how HDSL was implemented for your  
Campus system. HDSL-B represents the second pair (or loop) of a  
two-pair implementation.  
•
•
Local indicates the Campus unit into which you are logged for  
management. Remote indicates the Campus unit at the other end of the  
HDSL connection from the local unit.  
ES/UAS indicates the total number of errored seconds and unavailable  
seconds that occurred during this 15-minute time frame.  
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Do the following if you want to view more history:  
•
•
To view the next page of the report, type N then press ENTER .  
To view the previous page, type P then press ENTER .  
To update information on this screen, type U then press ENTER .  
Performance history information is lost when power is  
removed from the Campus unit.  
Viewing Seven-Day Performance History  
This screen displays historical HDSL information for the last seven days.  
When a date ends with an asterisk (*), it indicates a time period beginning at  
midnight and up to the current time.  
From the System Status Menu, type 3 then press ENTER . The 7 Day HDSL  
Performance History screen is displayed.  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Central  
Local I/F: REX2  
Remote I/F: REX2  
Circuit ID: Southeast line 421  
7 DAY HDSL PERFORMANCE HISTORY  
HDSL-A  
HDSL-B  
LOCAL  
ES/UAS  
REMOTE  
ES/UAS  
LOCAL  
ES/UAS  
REMOTE  
ES/UAS  
--------  
--------  
--------  
--------  
May 24  
May 25  
May 26  
May 27  
May 28  
May 29  
May 30  
May 31*  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
00000/00000 00000/00000  
*Since Midnight  
(U)pdate  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
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Chapter 5 - Monitoring and Testing the Campus System  
The 7 Day HDSL Performance History screen provides the following  
information:  
•
HDSL-A represents a single pair or the first pair (or loop) of a two-pair  
implementation (dependent on how HDSL was implemented for your  
Campus system). HDSL-B represents the second pair (or loop) of a  
two-pair implementation.  
•
•
Local indicates the Campus unit into which you are logged for  
management. Remote indicates the Campus unit at the other end of the  
HDSL connection from the local unit.  
ES/UAS indicates the total number of errored seconds and unavailable  
seconds that occurred during this day.  
To update information on this screen, type U then press ENTER .  
Performance history information is lost when power is  
removed from the Campus unit.  
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Chapter 5 - Monitoring and Testing the Campus System  
Viewing Local Alarm History  
This screen displays alarm history information. From the System Status  
Menu, type 4 then press ENTER . The Local Alarm History screen is  
displayed.  
Jul 07, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote Unit ID: Inactive  
Circuit ID:  
Remote I/F: Inactive  
LOCAL ALARM HISTORY  
First  
Type  
Current  
Last  
Count  
HDSL Link,  
ACTIVE Dec 09, 1999-04:30:03  
Nov 31, 1999-12:21:01  
1
0
0
0
0
0
ES,  
ES,  
HDSL-A  
HDSL-B  
OFF  
OFF  
OFF  
OFF  
OFF  
Margin, HDSL-A  
Margin, HDSL-B  
LOS,  
Port  
Last Cleared: None  
(S)witch to Remote Alarm History  
(U)pdate (C)lear  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
This screen shows alarm history of the local unit. If the HDSL line uses two  
loops, the screen includes information for both loops. The screen includes  
information on the following alarms:  
•
•
•
Errored seconds (ES) for HDSL loop A (first pair) and HDSL loop B  
(second pair, when applicable)  
Margin for HDSL loop A (first pair) and HDSL loop B (second pair,  
when applicable)  
Loss of Signal (LOS) for the HDSL port  
To view remote alarm history, type S then press ENTER .  
To update the information, type U then press ENTER .  
To clear the information, type C then press ENTER .  
Alarm history information is lost when power is removed from  
the Campus unit.  
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Chapter 5 - Monitoring and Testing the Campus System  
VIEWING ETHERNET STATISTICS  
The REX2 Statistics screen provides a count of valid Ethernet packets  
received and forwarded by the Ethernet and HDSL ports.  
From the Main Menu, type 2 then press ENTER .  
Jul 07, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote Unit ID: Inactive  
Circuit ID:  
Remote I/F: Inactive  
MAIN MENU  
1) SYSTEM STATUS  
2) REX2 CONFIGURATION AND STATUS  
3) SYSTEM CONFIGURATION  
4) MAINTENANCE  
5) REMOTE LOGON  
(L)ogout  
ENTER CHOICE>  
The REX2 Configuration and Status screen is displayed; bridge protocol is  
the default.  
Jul 07, 2003  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote I/F: REX2  
REX2 CONFIGURATION AND STATUS  
100BaseT, Full Duplex, Up  
LAN STATUS:  
LINE STATUS: Standard, Auto, T1, Down  
MAC ADDRESS: 00:20:A7:01:02:08  
1) Network Protocol:  
2) Encapsulation:  
Bridge  
cHDLC  
(Bridge, Router)  
(cHDLC, PPP)  
3) Timing Source:  
Internal  
(Internal, HDSL)  
4) BRIDGE CONFIGURATION  
5) BRIDGE STATISTICS  
6) SNMP CONFIGURATION  
7) SAVE REX2 CONFIGURATION  
WARNING: Configuration change(s) will be lost if not saved before  
resetting or powering unit down.  
(R)eturn  
ENTER CHOICE>  
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Chapter 5 - Monitoring and Testing the Campus System  
Viewing Bridge Statistics  
From the REX2 Configuration and Status screen with Bridge selected as the  
network protocol, type 5 then press ENTER .  
The Bridge Statistics screen is displayed.  
Jul 07, 2003  
Local Unit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local I/F: REX2  
Remote Unit ID: Inactive  
Remote I/F: Inactive  
Circuit ID:  
Southeast line 421  
BRIDGE STATISTICS  
Creation Failures:  
LINE RX LAN RX  
UNIT  
Entries Learned:  
1
0
PORTS  
LAN TX  
LINE TX  
Frames:  
Multicasts:  
Bridge Frames: 0000000000  
Discards:  
Errors:  
Undersized:  
Oversized:  
Ex. Delay:  
0000000000  
0000000000  
0000000000 0000000893  
0000000000 0000000000  
0000000000 0000000525  
0000000000 0000000000  
0000000000 0000000000  
0000000000 0000000000  
0000000000 0000000000  
---------- ----------  
---------- ----------  
0000000840  
0000000000  
0000000000  
----------  
0000000000  
----------  
----------  
0000000000  
0000000000  
----------  
0000000000  
----------  
----------  
0000000000  
Ex. Collisions: 0000000000  
(R)eturn (M)ain Menu (U)pdate (C)lear  
ENTER CHOICE>  
The following information is displayed for the unit:  
•
Entries learned indicates the number of entries learned on a port and that  
are added to the bridging table.  
•
Creation failures indicates the number of entries not added to the  
bridging table because the table was full.  
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Chapter 5 - Monitoring and Testing the Campus System  
The following information is displayed for the LAN and Line ports (for  
transmit and receive directions):  
Monitored Port  
Statistic  
Description  
LAN  
Line  
Rx Frames  
The number of received frames.  
•
•
•
•
•
•
•
•
Tx Frames  
The number of transmitted frames.  
The number of multicast frames received.  
Rx Multicasts  
Tx Multicasts  
The number of multicast frames  
transmitted.  
Rx Discards  
Rx Errors  
The number of received frames that have  
been discarded (filtered).  
•
•
•
•
The number of frames received in error  
from both the input and output buffers  
(such as CRC errors, alignment errors, and  
dribbling bit errors).  
Tx Errors  
The number of frames transmitted in error  
from both the input and output buffers  
(such as CRC errors, alignment errors, and  
dribbling bit errors).  
•
•
•
•
Rx Undersized  
Rx Oversized  
The number of frames received that are  
smaller than the Ethernet minimum of 64  
bytes.  
The number of frames received that exceed  
the MTU size of 1536 bytes.  
•
•
•
•
•
•
Tx Excessive  
Delay  
Frames discarded due to excessive  
queuing time.  
Tx Excessive  
Collisions  
The number of excessive collision events  
that have occurred, that is. frames dropped  
because of 16 consecutive collisions.  
To update the statistics, type U then press ENTER .  
To clear the counters, type C then press ENTER .  
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Chapter 5 - Monitoring and Testing the Campus System  
Viewing Router Statistics  
From the REX2 Configuration and Status screen with Router selected as the  
network protocol, type 5 then press ENTER .  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Central  
Local I/F: REX2  
Remote I/F: REX2  
Circuit ID: Southeast line 421  
ROUTER STATISTICS  
Static Entries: 0  
UNIT  
RIP Entries: 0  
LAN TX  
LINE RX  
LAN RX  
0000000000 0000000362  
0000000000 0000000000  
0000000000 0000000000  
0000000000 0000000000  
0000000000 0000000000  
---------- ----------  
---------- ----------  
LINE TX  
0000000315  
0000000000  
0000000000  
----------  
----------  
0000000000  
0000000000  
PORTS  
Frames:  
Multicasts:  
Errors:  
Undersized:  
Oversized:  
Ex. Delay:  
0000000000  
0000000000  
0000000000  
----------  
----------  
0000000000  
Ex. Collisions: 0000000000  
(R)eturn (M)ain Menu (U)pdate (C)lear  
ENTER CHOICE>  
The following information is displayed for the unit:  
•
RIP Entries indicates the number of entries learned on a port and that are  
added to the routing table.  
•
Static Entries indicates the number of entries added to the static routing  
table through manual configuration.  
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Chapter 5 - Monitoring and Testing the Campus System  
The following information is displayed for the LAN and Line ports (for  
transmit and receive directions):  
Monitored Port  
Statistic  
Description  
LAN  
Line  
Rx Frames  
The number of received frames.  
•
•
•
•
•
•
•
•
Tx Frames  
The number of transmitted frames.  
The number of multicast frames received.  
Rx Multicasts  
Tx Multicasts  
The number of multicast frames  
transmitted.  
Tx Errors  
The number of frames transmitted in error  
from both the input and output buffers  
(such as CRC errors, alignment errors, and  
dribbling hit errors).  
•
•
•
•
•
•
Rx Errors  
The number of frames received in error  
from both the input and output buffers  
(such as CRC errors, alignment errors, and  
dribbling hit errors).  
RX Undersized The number of frames received that are  
smaller than the Ethernet minimum of 64  
bytes.  
Rx Oversized  
The number of frames received that exceed  
the MTU size.  
•
•
•
•
•
•
Tx Excessive  
Delay  
Indicates excessive delay that occurred for  
transmitted packets.  
Tx Excessive  
Collisions  
The number of excessive collision events  
that have occurred, that is. frames dropped  
because of 16 consecutive collisions.  
To update the statistics, type U then press ENTER .  
To clear the counters, type C then press ENTER .  
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Chapter 5 - Monitoring and Testing the Campus System  
PERFORMING TESTS  
The Campus-REX2 offers tests you can run to check the HDSL datapath  
(loopbacks). Access to the test is from the Diagnostics screen.  
1
From the Main Menu, type 4 then press ENTER .  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Central  
Local I/F: REX2  
Remote I/F: REX2  
Circuit ID: Southeast line 421  
MAIN MENU  
1) SYSTEM STATUS  
2) REX2 CONFIGURATION AND STATUS  
3) SYSTEM CONFIGURATION  
4) MAINTENANCE  
5) REMOTE LOGON  
(L)ogout  
ENTER CHOICE>  
The Maintenance screen is displayed.  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Inactive  
Local I/F: REX2  
Remote I/F: Inactive  
Circuit ID:  
Southeast line 421  
MAINTENANCE  
1) DIAGNOSTICS  
2) RESET REX2  
(R)eturn  
ENTER CHOICE>  
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Chapter 5 - Monitoring and Testing the Campus System  
2
To access the Diagnostics screen, type 1 then press ENTER . The  
Diagnostics screen is displayed.  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Central  
Local I/F: REX2  
Remote I/F: REX2  
Circuit ID: Southeast line 421  
DIAGNOSTICS  
1) LOOPBACK  
(R)eturn (M)ain Menu  
ENTER CHOICE>  
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Chapter 5 - Monitoring and Testing the Campus System  
Performing Loopback Testing  
Loopbacks provide testing for the HDSL data communication path between  
the Campus unit, the remote unit, and the remote host equipment. Loopback  
tests can be run only when one end of the HDSL connection (either the local  
or the remote) is a Campus-REX2 or Campus-REX (both ends cannot be  
Campus-REX2 or Campus-REX).  
The following section describes how to set up, run, and terminate  
loopback tests.  
Configuring Loopbacks  
If both the local and remote Campus units have a  
Campus-REX2 RS Interface Card, no loopbacks are  
supported between the two units.  
The Campus-REX2 supports the following types of loopbacks between a  
Campus-REX2 and another Campus unit that contains a synchronous  
interface card such as V.35 or DSX-1:  
•
•
The Remote to Remote loopback tests the remote data port.  
The Local to Remote loopback tests the remote data port, the entire data  
path inside the remote Campus unit, the HDSL line, the HDSL  
transceivers of both units, and most of the internal data path inside the  
local unit. This loopback does not test the local data port drivers and  
receivers.  
Once a loopback condition has been initiated, it remains in effect until it is  
cleared. You may also set a loopback timeout to clear the loopback  
automatically after a set period of time has elapsed.  
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Chapter 5 - Monitoring and Testing the Campus System  
All loopback options are accessed through the Loopback Settings menu. To  
open this menu:  
1
From the Diagnostics screen, type 1 then press ENTER . The Loopback  
screen is displayed.  
Jan 01, 1970  
Local Unit ID:  
Remote Unit ID:  
Circuit ID:  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1  
Local I/F: REX2  
18:19:29  
Remote I/F: FRAC V.35  
LOOPBACK  
ACTIVE LOOPBACK: None  
1) Local Data Port toward Local Data Port  
2) Remote Data Port toward Local Data Port  
3) Local Data Port toward Remote Data Port  
4) Remote Data Port toward Remote Data Port  
5) Terminate Loopbacks  
Not available  
Not available  
6) Loopback Timeout (min):  
20  
(20, 60, 120, None)  
WARNING: Any loopback will remove data link from service.  
(R)eturn (M)ain Menu  
2
3
To initiate a loopback condition, type the number (1 or 2) that  
corresponds to the loopback then press ENTER . The Loopback screen  
displays the new loopback status.  
To clear a loopback condition, type 3 then press ENTER . The system  
disables the loopback and the Loopback Settings menu is displayed.  
If you set the loopback timeout to NONE, a loopback runs until  
you clear it manually or turn the unit off.  
4
To select a loopback timeout, type 4 then press ENTER . Continue until  
you select the timeout (20, 60, or 120 minutes or none which disables the  
timeout) you want for this test. The default is 20 minutes.  
The loopback timeout determines the amount of time before a loopback  
clears automatically.  
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Chapter 5 - Monitoring and Testing the Campus System  
RESETTING THE CAMPUS UNIT  
You can issue a reset for the Campus unit which causes it to complete a soft  
reboot. Use this function when one of the following occurs:  
•
The Port LED flashes green and the REX2 Module Not Ready message  
is displayed when trying to access the REX2 interface. This indicates that  
the Campus desktop or line unit is not communicating with the REX2  
card for more than 1 minute after power-up was indicated.  
•
•
HDSL, REX2, or system configuration changes have been made, but not  
saved, and you want to revert to the previously saved configuration.  
The REX2 is not functioning properly as indicated by excessive LAN  
errors or Not availabledisplayed for configuration values.  
During the reset, the Port and HDSL LEDs on the desktop unit flash.  
It is not required that you reset the REX2 after a configuration change or  
when you complete a save function.  
1
From the Main Menu, type 4 then press ENTER .  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Inactive  
Local I/F: REX2  
Remote I/F: Inactive  
Circuit ID:  
Southeast line 421  
MAIN MENU  
1) SYSTEM STATUS  
2) REX2 CONFIGURATION AND STATUS  
3) SYSTEM CONFIGURATION  
4) MAINTENANCE  
5) REMOTE LOGON  
(L)ogout  
ENTER CHOICE>  
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Chapter 5 - Monitoring and Testing the Campus System  
The Maintenance screen is displayed.  
Jul 07, 2003  
ADC TELECOMMUNICATIONS, CAMPUS RS, Version 5.1 08:19:34  
Local Unit ID: Southall Quad 4  
Remote Unit ID: Inactive  
Local I/F: REX2  
Remote I/F: Inactive  
Circuit ID:  
Southeast line 421  
MAINTENANCE  
1) DIAGNOSTICS  
2) RESET REX2  
(R)eturn  
ENTER CHOICE>  
2
To reset the Campus unit, type 3 then press ENTER . At the prompt, enter  
y to continue restoring all values to the factory default values or n to stop  
the process.  
WARNING: Unsaved configuration change(s) will be  
lost.  
Are You Sure (Y/N) ? y  
REX2 reset in progress; Please wait...  
REX2 has been reset  
Hit Any Key to Continue...  
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MANAGING SOFTWARE  
6
This chapter describes how to perform general management of the Campus  
unit software, including both upgrading software and recovery of software in  
the event of a file system failure.  
For:  
See Page:  
Upgrading Campus Unit Software  
Recovering Software  
92  
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Chapter 6 - Managing Software  
UPGRADING CAMPUS UNIT SOFTWARE  
This section describes how to upgrade the software on your Campus-REX2.  
To upgrade, you will use FTP on your Windows- or Unix/Linux-based PC to  
transfer the new software to the Campus-REX2. A file containing the new  
software is supplied with the name carex2_Vx.y.tar, where x.y is the software  
release version. When you upgrade software, the configured parameters for  
HDSL, system, and REX2 are not affect by the upgrade.  
Prior to updating software, ensure the following has been completed:  
•
•
•
The Campus-REX2 is configured with a LAN IP address (see  
“Configuring the REX2” on page 29.)  
You can successfully 'ping' the configured LAN IP address of the  
Campus-REX2.  
You have access to the file containing the upgrade software  
(carex2_Vx.y.tar) from the PC that you used to perform the 'ping'.  
Do not remove power to the Campus unit or disconnect the  
Line and LAN side network connections when upgrading  
software or saving configuration.  
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Upgrade the Campus-REX2 software as follows:  
1
Open a DOS window (Windows-based PC) or command shell  
(Unix/Linux-based PC).  
2
Change directory to a directory where you will copy the file containing  
the upgrade software (carex2_Vx.y.tar) and subsequently execute the  
FTP commands below. For example:  
c:\> cd \campus\rex2\upgrade\v5.1  
3
4
Copy the upgrade software file (carex2_Vx.y.tar) to this directory.  
At the DOS prompt, start FTP using the configured LAN IP address of  
the Campus-REX2. For example:  
c:\campus\rex2\upgrade\v5.1> ftp 192.168.1.1  
A message indicating successful connection to the LAN IP address  
follows. If this does not occur, verify that you have correctly entered the  
LAN IP address  
5
FTP then prompts for a user name and password to connect FTP to the  
Campus-REX2. For example:  
User (192.168.1.1:(none)): admin  
Password: admin (or previously configured REX2 password; see  
“Setting a Password” on page 69)  
When FTP is successfully connected to the Campus-REX2, FTP displays  
the "ftp>" prompt.  
6
7
At the FTP prompt, set the file type that FTP will use to transfer the  
upgrade software file, as follows:  
ftp> bin  
At the FTP prompt, enter the command to transfer the upgrade software  
file (carex2_Vx.y.tar) to the Campus-REX2, for example:  
ftp> put carex2_V5.1.tar  
If the transfer is successful, a "Store complete" message is displayed,  
along with transfer statistics. If the transfer is unsuccessful, one or more  
error messages may be displayed, and the FTP connection is terminated.  
In the case of a failed transfer, verify that the upgrade software filename  
has been entered correctly.  
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8
At the FTP prompt, enter the command to permanently save the upgrade  
software to flash memory in the Campus-REX2, and restart the  
Campus-REX2 with the new software, as follows:  
ftp> quote site update  
On a Windows-based PC, you may also use the command literal  
site update. This command may take a few seconds before  
returning to the FTP prompt. When the command completes, FTP, as  
well as Campus-REX2 console and LCD, display messages indicating  
that the upgrade is in progress. As indicated by the FTP message, the  
save-and-restart operation may take up to 1 minute to complete.  
9
At the FTP prompt, enter the command to exit FTP.  
ftp> bye  
As noted previously, the Campus-REX2 unit will restart automatically.  
10 After the Campus-REX2 unit has restarted with the new software, you  
may log in to the Campus-REX2 console as described in “Logging In”  
on page 12.  
The actual screen may differ based on the operating system  
that you use.  
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RECOVERING SOFTWARE  
This recovery process returns the Campus-REX2 to a working state after a  
file system failure. If, upon bootup of the Campus-REX2, it is determined that  
the file system is corrupted, the unit performs the process described below.  
The potential for file system failure occurs if the unit loses power during a  
code upgrade or during a configuration save.  
For the recovery to occur, you must have the following installed and available  
to the Campus-REX2:  
•
A BOOTP server must be configured and available to respond to the  
MAC address of the Campus-REX2 with the following information:  
–
–
–
–
IP address and subnet mask  
Gateway IP address, if required  
TFTP server IP address  
recovery image filename  
•
A TFTP server must be active and available and contain the recovery  
image file (name provided to Campus-REX2 by BOOTP server).  
The Campus-REX2 automatically performs the following when recovering  
software:  
1
2
3
After internal processing, the Campus-REX2 sends a BOOTP request  
out both the LINE and LAN interfaces. These requests are transmitted  
until a reply is received.  
After the BOOTP response is received by the Campus-REX2, it attempts  
to download code from the TFTP server (TFTP server IP address  
provided to Campus-REX2 by BOOTP server).  
After the new image is downloaded, the Campus-REX2 automatically  
boots the new image.  
Your Campus-REX2 is now in a normal operating state and you can manage  
it as appropriate.  
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USING THE LCD FOR  
CONFIGURATION  
AND MANAGEMENT  
7
This chapter describes how to use the LCD to set the Campus-REX2  
configuration options.  
For:  
See Page:  
Navigating the LCD Menus  
98  
Setting the HDSL Parameters  
Configuring the Campus-REX2  
Restoring the System to Default Values  
Viewing and Configuring Alarms  
Configuring Loopbacks  
99  
103  
108  
109  
113  
115  
115  
Viewing System Information  
Viewing Status Information  
The steps in this section use the menu buttons and LCD on the front of the  
desktop unit or the Campus-Star Campus Management Unit (CMU) to  
configure the Campus-REX2. With the default settings, the Campus-REX2 is  
set to operate:  
•
•
•
with the HDSL Operating Mode set to Standard Mode  
with the Standard Mode HDSL Rate set to T1  
as a bridge, with the encapsulation format set to cHDLC and  
Spanning Tree protocol disabled  
•
with the Timing Source set to Internal  
Depending on the requirements of your network, you may be able to use the  
default settings for one or more of these options.  
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Chapter 7 - Using the LCD for Configuration and Management  
NAVIGATING THE LCD MENUS  
Use the LCD and the menu buttons on the desktop unit or CMU to navigate  
the menus and configure the Campus-RS system. The illustration below  
shows the LCD and menu buttons on the desktop unit. See the Campus-Star  
Chassis User Manual for the location of the LCD and menu buttons on the  
CMU.  
HDSL LED  
LCD  
Menu buttons  
HDSL  
Test  
Next  
Escape  
Enter  
Port  
Port LED  
Test LED  
The following table describes how to use the menu buttons to move through  
the menus and select items.  
Button  
Function  
Next  
Scrolls to the next LCD menu or option at the same level of the  
menu structure  
Enter  
Selects the displayed LCD menu or option  
Returns to the previous LCD menu selection  
Escape  
Instructions for setting individual configuration options are included with  
each option. The basic procedure is:  
1
2
3
4
5
Press Escape until CAMPUS RS I/F: REX2 is displayed.  
Press Next until the preferred menu name is displayed.  
Press Enter to access the menu options.  
Press Next until the preferred option name is displayed.  
Press Enter to access the settings for the option.  
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6
7
8
Press Next until the preferred setting is displayed.  
Press Enter to select and save the preferred option.  
Press Escape several times to return to the top of the menu structure  
(CAMPUS RS I/F: REX2).  
When a parameter is preceded by an equal (=) sign, it indicates that it has  
selectable parameters that you can configure.  
SETTING THE HDSL PARAMETERS  
The Campus-REX2 is set to operate in Standard Mode with a T1  
(1.544 Mbps) HDSL Rate. This is compatible with other Campus-RS  
products and with Campus-T1 desktop units and line units. If this is the  
preferred setting for your system, proceed to “Configuring the  
Campus-REX2” on page 103. Otherwise, follow the steps in this section to  
adjust the HDSL transmission rate.  
Changes to the HDSL operating mode or transmission rate are  
not automatically made to the remote unit. These changes  
must be made at both the local and remote units for the HDSL  
link to be re-established. If the remote unit is not easily  
accessible, you can follow the instructions in “Logging On a  
Remote Campus Unit” on page 15 to use an PC for a remote  
logon (if an HDSL link is up) and make the preferred change.  
When you change the HDSL settings for the remote unit, the  
HDSL link is lost; it is re-established when you make the  
identical change(s) to the local unit.  
You can use the default HDSL setting for your Campus-RS unit (when also  
using the default settings on the remote unit to which this unit connects)  
which are:  
•
•
standard for the HDSL operating mode  
auto for the transceiver mode (determines which device is the master  
or slave)  
•
T1 for the HDSL rate  
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If you want to change any of these parameters, select one of the following  
sections based on the HDSL operating mode you will use. Campus-RS offers  
these two HDSL operating modes:  
•
•
Standard mode (below) provides compatibility between a Campus-RS  
product and an earlier Campus product (legacy Campus) that has a  
HDSL interface including T1, E1, or 768:  
–
–
–
for T1, the maximum transmission rate is 1.544 Mbps over 2 pairs  
for E1, the maximum transmission rate is 2.048 Mbps over 2 pairs  
for 768, the transmission rate is 768 kbps over 1 pair  
Extended mode (page 101) provides a fractional (n x 64) rate selection  
between the HDSL interfaces of two Campus-RS products. The rate is  
selectable as follows:  
–
for 1 pair in 64 kbps increments, starting at 128 kbps up to  
2.304 Mbps  
–
for 2 pair in 128 kbps increments, starting at 256 kbps up to  
4.608 Mbps  
Accessing LCD HDSL Configuration  
To access the menu to configure the HDSL parameters, do the following:  
1
2
3
Press Escape until Campus RS I/F: REX2 is displayed.  
Press Next. HDSL LINK CONFIG & STATUSis displayed.  
Press Enter. OPERATING MODEis displayed.  
Continue with one of the following sections, depending on whether you are  
using Standard Mode or Extended Mode.  
Configuring Standard Mode  
Set HDSL configuration for Standard Mode using the following procedure.  
1
To select the Operating Mode, do one of the following:  
•
•
If the mode is set to Standard, go to Step 2.  
If the mode is not set to Standard, press Enter, then press Next until  
the LCD displays STANDARD, then press Enter. The Operating  
Mode changes to OPERATING MODE=Standard.  
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2
To select the transceiver mode:  
a
b
c
Press Next until XCVR Modeis displayed.  
Press Enter.  
Press Next until your choice is displayed:  
• Masterinitiates the HDSL link. The other Campus unit must  
be set to Slave or Auto.  
• Slavewaits for the other Campus unit to initiate the HDSL  
link. The other unit must be set to Master or Auto.  
• Auto(default) automatically switches between Master and  
Slave until an HDSL link is established.  
The Transceiver Mode option determines the hierarchy of the two  
Campus units when attempting to establish an HDSL link.  
d
Press Enter.  
3
To select the HDSL rate:  
a
b
c
Press Next until HDSL RATEis displayed.  
Press Enter.  
Press Next until your setting choice of T1 (default), E1, or 768  
is displayed.  
d
Press Enter.  
To continue setting up the system, proceed to “Configuring the  
Campus-REX2” on page 103.  
Configuring Extended Mode Parameters  
Set the Extended Mode parameters using the following procedure.  
1
To select the Operating Mode, do one of the following:  
•
•
If the mode is set to EXTENDED, go to Step 2.  
If the mode is not set to EXTENDED, press Enter, then press Next  
until the LCD displays EXTENDED, then press Enter. The  
Operating Mode changes to OPERATING MODE=Extended.  
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It is recommended that you leave the Transceiver Mode  
option set to Auto unless you require that a particular end of  
the HDSL connection be the Master or Slave.  
Also, this value cannot be changed if the HDSL link is up.  
2
To select the transceiver mode:  
a
b
c
Press Next until XCVR Modeis displayed.  
Press Enter.  
Press Next until your choice is displayed:  
• Masterinitiates the HDSL link. The other Campus unit must  
be set to Slave or Auto.  
• Slavewaits for the other Campus unit to initiate the HDSL  
link. The other unit must be set to Master or Auto.  
• Auto(default) automatically switches between Master and  
Slave until an HDSL link is established.  
The Transceiver Mode option determines the hierarchy of the two  
Campus units when attempting to establish an HDSL link.  
d
Press Enter.  
3
4
To configure LOOP MODE, do the following:  
a
b
c
Press Next to display LOOP MODE.  
Press Enter.  
Press Next to change the setting from 1 Loop (default) to 2 Loop,  
then press Enter. The LCD displays LOOP MODE=2 Loops.  
To configure HDSL RATE, do the following:  
a
Press Next to display HDSL RATE.  
Press Enter.  
b
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c
Press Next until the HDSL transmission rate you want to set is  
displayed, then press Enter. The HDSL Rate that is displayed is  
dependent on whether you selected 1 Loop or 2 Loop for the Loop  
Mode. The minimum and maximum rates are:  
•
for 1 Loop, 128 kbps is the minimum and 2304 Mbps is the  
maximum selected in 64 kbps increments; the default is  
128 kbps  
•
for 2 Loop, 256 kbps is the minimum and 4608 Mbps is the  
maximum selected in 128 kbps increments; the default is  
256 kbps  
To continue setting up the system, proceed to “Configuring the  
Campus-REX2” on page 103.  
CONFIGURING THE CAMPUS-REX2  
Through the Campus-REX2 LCD, the Network Protocol (bridge or  
router) is selectable. The LCD indicates which network protocol is selected  
either by its default configuration or through a change made to the interface  
through the LCD or through the console port, telnet, or SNMP. For both  
bridge and router Network Protocol, the timing source and  
encapsulation can be selected.  
The LCD also provides information about the network protocol that is  
currently configured for the Campus-REX2 such as:  
•
when in router mode:  
–
router configuration including IP addresses for both the Line and  
LAN ports, RIP configuration, and the DHCP service configuration  
–
router statistics including frames transmitted and received by the  
Line and LAN ports  
•
when in bridge mode:  
–
bridge configuration including the unit IP addresses and filter age  
(Spanning Tree Protocol, which is under this menu selection, can be  
enabled)  
–
bridge statistics including frames transmitted and received by the  
Line and LAN ports and error frames  
For an overview of bridges, routers, and other network management  
concepts, see “Internetworking and Management Overview” on page 119.  
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Accessing LCD REX2 Configuration  
For both bridge and router Network Protocol, the timing source and  
encapsulation can be selected. For bridge mode only, Spanning Tree Protocol  
can be enabled (default configuration is disabled). Use the following  
procedures to set these parameters.  
1
2
3
4
Press Escape until Campus RS I/F: REX2 is displayed.  
Press Next twice. REX2 CONFIG & STATUSis displayed.  
Press Enter. Configure REX2 Settingsis displayed.  
Press Enter and continue with the following sections.  
Configuring REX2 Parameters  
For both bridge and router Network Protocol, you can select the timing  
source and encapsulation. You can then configure the specific parameters for  
either bridge mode or router mode. Use the following procedures to set these  
parameters.  
Set the Timing Source  
The Timing Source option determines the source of circuit timing on the  
HDSL link and applies to both bridge and router modes. The LCD navigation  
to get to this submenu was provided in the section “Accessing LCD REX2  
Configuration” on page 104.  
1
To select the Timing Source, do one of the following:  
•
•
If the mode is set to Timing Source, go to Step 2.  
If the mode is not set to Timing Source, press Next until the  
LCD displays Timing Source, then press Enter. The Operating  
Mode changes to Timing Source=Internal.  
2
3
Press Enter. The LCD displays the current Timing Source setting  
(Internal is the default).  
Press Next until the preferred Timing Source setting is displayed, then  
press Enter. The LCD displays the new Timing Source setting. Select  
from the following setting options:  
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•
•
Internal (default setting) which takes its timing from an internal  
oscillator  
HDSL which takes its timing from the HDSL link  
The Timing Source option determines the source of circuit timing on the  
HDSL link. The proper setting of the Timing Source option depends  
upon the interface card of the remote Campus unit:  
•
If the Campus-REX2 is connected to a Campus unit with another  
Campus-REX2, leave the Timing Source option set to Internal. The  
other end of the connection can be set to HDSL; the Campus system  
will not operate properly if both units are set to HDSL.  
•
If the Campus-REX2 is connected to a Campus unit with a  
synchronous interface card, such as a Fractional V.35 card, the  
timing source depends on the setting of the Primary Timing Source  
option of the remote unit:  
–
Set the Timing Source to HDSL if the remote unit is set to  
Internal or Data Port.  
–
Set the Timing Source to Internal if the remote unit is set to  
HDSL.  
See the Campus-RS Fractional Interface Card User Manual for  
information on the Primary Timing Source option.  
•
If the Campus-REX2 is connected to a Campus unit with a Campus  
CSU/DS-1 or CSU/DSX-1 interface card, set the Timing Source  
option to Internal.  
Setting the Encapsulation  
This section describes how to configure the Encapsulation type for data sent  
by the Campus-REX2. The LCD navigation to get to this submenu was  
provided in the section “Accessing LCD REX2 Configuration” on page 104.  
1
To select the Encapsulation, do one of the following:  
•
•
If the mode is set to Encapsulation, go to Step 2.  
If the mode is not set to Encapsulation, press Next until the  
LCD displays Encapsulation, then press Enter. The Operating  
Mode changes to Encapsulation=cHDLC.  
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2
3
Press Enter. The LCD displays the current Encapsulation setting  
(cHDLC is the default).  
Press Next until the preferred Encapsulation setting is displayed, then  
press Enter. Choose from these setting options:  
•
•
cHDLC for Campus-REX2 to another Campus-REX2 application  
PPP when the remote Campus unit has a synchronous interface card  
such as a V.35 or when connecting to Ethernet equipment from  
another manufacturer  
Setting Bridge Configuration  
When the network protocol is set to bridge, you can configure the parameters  
indicated in the sections below. Parameters such as the Unit IP must be  
configured through the terminal screens.  
Enabling Spanning Tree. Complete this section if you want to enable  
Spanning Tree Protocol (STP) when bridge protocol is selected. Spanning  
Tree Protocol is disabled as a default configuration. See “About Spanning  
Tree Protocol” on page 124 for more information about the protocol. The  
LCD navigation to get to this submenu was provided in the section  
“Accessing LCD REX2 Configuration” on page 104.  
1
2
3
Press Next until you select Bridge Configuration, then press Enter.  
Press Next until you select Spanning Tree, then press Enter.  
Press Next to select Enabled, then press Enter.  
Viewing Unit IP. Complete this section to view the Unit IP address. The  
LCD navigation to get to this submenu was provided in the section  
“Accessing LCD REX2 Configuration” on page 104.  
1
2
Press Next until you select Bridge Configuration, then press Enter.  
Press Next until you select Unit IP, then press Enter.  
The Unit IP address is displayed. If you have not changed the IP address  
through the terminal screens, then the default IP address of 192.168.1.1  
is displayed.  
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Setting Router Configuration  
When the network protocol is set to router, you can view the parameters  
indicated in the sections below. Parameters such as the LINE and LAN IP  
must be configured through the terminal screens.  
Viewing Line and LAN IP Addresses. Complete this section to view  
the IP addresses. The addresses must be configured through the terminal  
screens. The LCD navigation to get to this submenu was provided in the  
section “Accessing LCD REX2 Configuration” on page 104.  
1
2
Press Next until you select Router Configuration, then press Enter.  
Press Next until you select Port IP Settings, then press Enter.  
The LAN IP address is displayed. If you have not changed the IP address  
through the terminal screens, then the default IP address of 192.168.1.1  
is displayed.  
3
4
5
6
Press Next to view the LAN subnet mask.  
Press Next to view the LINE IP address.  
Press Next to view the LINE subnet mask.  
Press Escape to return to the Router Configuration menu.  
Viewing RIP Configuration. Complete this section to view the  
configured parameters for RIP. The LCD navigation to get to this submenu  
was provided in the section “Accessing LCD REX2 Configuration” on page  
104.  
1
2
3
Press Next until you select Router Configuration, then press Enter.  
Press Next until you select RIP Configuration, then press Enter.  
Press Next to view the configured parameters for:  
•
•
•
•
•
•
•
LAN RIP Send  
LAN RIP Rcv (receive)  
LINE RIP Send  
LINE RIP Rcv (receive)  
RIP Host Route  
Poison reverse  
RIP 2 auth  
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4
To change the parameter, press Enter when the parameter is displayed  
(the current setting of this parameter displays on a separate screen).  
5
6
Press Next until the desired (new) setting is displayed, then press Enter.  
Press Escape to return to the Router Configuration menu.  
Viewing DHCP Service. Complete this section to view the configured  
parameter for DHCP service. These parameters must be configured through  
the terminal screens. The LCD navigation to get to this submenu was  
provided in the section “Accessing LCD REX2 Configuration” on page 104.  
1
2
Press Next until you select Router Configuration, then press Enter.  
Press Next until you select DHCP Service, then press Enter.  
None is the default configuration. You can select DHCP Relay through  
the terminal screen. The configured value is displayed.  
3
Press Escape to return to the Router Configuration menu.  
Saving the REX2 Configuration  
If you have changed the Campus-REX2 Bridge or Router configuration, you  
can save this configuration. To save the configuration:  
1
Press Next until Press ENTER to save REX2 config is  
displayed.  
2
3
4
Press Enter. REX2 CONFIG SAVE IN PROGRESS is displayed.  
After a pause, REX2 CONFIG SAVE COMPLETE is displayed.  
Press Next to return to the previous screen.  
RESTORING THE SYSTEM TO DEFAULT VALUES  
You can restore all of the configuration options to their factory default values.  
To return the system configuration options to their default values:  
1
2
3
Press Escape until CAMPUS RS I/F: REX2 is displayed.  
Press Enter. S/W VERSN and S/WCKSUM is displayed.  
Press Next six times. Press ENTER to factory resetis  
displayed.  
4
Press Enter. The system configuration options return to the  
default values.  
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VIEWING AND CONFIGURING ALARMS  
To determine if there is an active alarm condition:  
1
2
3
Press Escape until CAMPUS RS I/F: REX2 is displayed.  
Press Next three times. ALARM CONFIG & STATUSis displayed.  
Press Enter. The LCD displays these Alarm types:  
• Current Alarms HDSL  
• HDSL Link AlarmsConfig and Status  
•
•
Local I/F Alarms Config and Status  
RMT I/F Alarms Config and Status  
If a specific indicator does not display, there is no alarm in that area of  
the system.  
The following sections describe how to view specific alarm information for  
the HDSL, local, and remote ports, and how to configure thresholds.  
HDSL Alarms  
This section describes how to view and configure alarms on the HDSL line.  
Viewing Current Alarms  
If the CURRENT ALARMSdisplay indicates an HDSL alarm, you can  
determine the alarm type:  
1
2
From the CURRENT ALARMSdisplay, press Next. HDSL LINK  
ALARMS CONFIG & STATUSis displayed.  
Press Enter. The current status of three alarms is displayed:  
• LINKshows whether the HDSL link is on or off  
• ESshows whether the errored seconds threshold has been exceeded  
on the local unit, remote unit, or both  
• MARGINshows whether the margin threshold has been exceeded on  
the local unit, remote unit, or both  
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Configuring Alarm Thresholds  
Alarm thresholds determine the level at which an alarm condition is reached.  
There are two types of HDSL alarm thresholds:  
•
Link ES threshold determines the number of errored seconds that must  
occur to trigger an alarm. This threshold can be set to 17 or 170 errored  
seconds. You can also disable this alarm.  
•
Margin threshold determines the margin, in dB, that triggers an alarm.  
This threshold can be set anywhere between 1 dB and 25 dB, in 1 dB  
increments. You can also disable this alarm.  
To set the alarm thresholds:  
1
From the CURRENT ALARMSdisplay, press Next. HDSL LINK  
ALARMSis displayed.  
2
3
4
5
Press Enter. The current HDSL alarm status is displayed.  
Press Next. HDSL ES THRESHLDis displayed.  
Press Enter.  
Press Next to scroll through the settings for the ES threshold until the  
preferred setting is displayed.  
6
Press the Enter button to select the preferred setting. HDSL ES  
THRESHLDis displayed.  
7
8
9
Press Next. MARGIN THRESHLDis displayed.  
Press Enter.  
Press Next to scroll through the settings for the margin threshold until the  
preferred setting is displayed.  
10 Press Enter to select the preferred setting. MARGIN THRESHLDis  
displayed.  
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Viewing 24-Hour HDSL Alarm History  
You can view the number of HDSL alarm conditions that have occurred over  
the past 24 hours. The LCD displays 24-hour information for the following  
alarms:  
•
•
•
•
local errored seconds (LOCAL ES)  
remote errored seconds (REMOTE ES)  
local unavailable seconds (LOCAL UAS)  
remote unavailable seconds (REMOTE UAS)  
You may also view the time when the counter was last cleared and clear the  
counter.  
To view the HDSL alarm history:  
1
2
3
Press Escape until CAMPUS RS I/F: REX2 is displayed.  
Press Next. HDSL LINK CONFIG & STATUSis displayed.  
Press Enter, then press Next until PERFORMANCE STATUSis  
displayed.  
4
5
Press Enter, then press Next to scroll through the alarm history is  
displayed.  
To reset the counter, press Next until Press ENTER to clear  
error cntsis displayed, then press Enter.  
Local Alarms  
Loss of Signal (LOS) alarms can occur on the local unit. This section  
describes how to view and configure this alarm.  
Viewing Current Alarms  
If the CURRENT ALARMSdisplay indicates a local alarm, you can determine  
the alarm type:  
1
2
From the CURRENT ALARMSdisplay, press Next twice. LOCAL I/F  
ALARMS CONFIG & STATUSis displayed.  
Press Enter. The current status of the local alarm is displayed.  
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Configuring the Alarm  
To enable or disable the local Loss of Signal alarm:  
1
From the CURRENT ALARMSdisplay, press Next twice. LOCAL I/F  
ALARMS CONFIG & STATUSis displayed.  
2
3
4
5
6
Press Enter. The current status of the local alarm is displayed.  
Press Next. LOC LOSS OF SIG ALMis displayed.  
Press Enter.  
Press Next to scroll through the settings for the alarm.  
Press Enter to select the preferred setting. LOC LOSS OF SIG ALM  
is displayed.  
Remote Alarms  
Loss of Signal (LOS) alarms can occur on the remote unit. This section  
describes how to view and configure this alarm.  
Viewing Current Alarms  
If the CURRENT ALARMSdisplay indicates a remote alarm, you can  
determine the alarm type:  
1
2
From the CURRENT ALARMSdisplay, press Nextthree times. RMT I/F  
ALARMS CONFIG & STATUS is displayed.  
Press Enter. The current status of the remote alarm is displayed.  
Configuring the Alarm  
To enable or disable the remote Loss of Signal alarm:  
1
From the CURRENT ALARMSdisplay, press Nextthree times. RMT I/F  
ALARMSis displayed.  
2
3
Press Enter. The current status of the remote alarm is displayed.  
Press Next. LOSS OF SIG ALMis displayed.  
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4
5
6
Press Enter.  
Press Next to scroll through the settings for the alarm.  
Press Enter to select the preferred setting. RMT LOSS OF SIG ALM  
is displayed.  
CONFIGURING LOOPBACKS  
Loopbacks provide a way to test the data communication path between the  
Campus unit, the remote unit, and the remote host equipment. The  
Campus-REX2 supports two types of loopbacks:  
•
Local to Remote loopbacks test the remote data port, the data path inside  
the remote Campus unit, the HDSL line, the HDSL transceivers of both  
units, and most of the internal data path inside the local unit. This  
loopback does not test the local data port drivers and receivers.  
•
Remote to Remote loopbacks test the remote data port and a small  
portion of the remote interface card.  
If both the local and remote units have a Campus-REX2 or  
Campus-REX interface card, no loopbacks are supported.  
Once a loopback condition has been initiated, it remains in effect until  
cleared. You may also set a loopback timeout to clear the loopback  
automatically after a set period of time has elapsed.  
You manage loopbacks through the DIAGNOSTICSmenu:  
1
2
3
Press Escape until CAMPUS RS I/F: REX2 is displayed.  
Press Next four times. DIAGNOSTICSis displayed.  
Press Enter. LOOPBACK MODEis displayed.  
The following sections describe how to initiate and clear loopbacks, and to  
set a loopback timeout.  
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Initiating a Loopback  
To initiate a loopback condition:  
1
2
From the LOOPBACK MODEdisplay, press Enter.  
Press Next to scroll through the loopback options until the preferred  
loopback condition is displayed.  
3
Press Enter to initiate the loopback. LOOPBACK MODEis displayed.  
Clearing a Loopback  
To clear a loopback condition:  
1
2
From the LOOPBACK MODEdisplay, press Enter.  
Press Next to scroll through the loopback options until NONEis  
displayed.  
3
Press Enter to clear the loopback. LOOPBACK MODEis displayed.  
Setting the Loopback Timeout  
The loopback timeout determines the amount of time before a loopback clears  
automatically. To set a loopback timeout:  
1
From the LOOPBACK MODEdisplay, press Next. LOOPBACK  
TIMEOUTis displayed.  
2
3
Press Enter to access the loopback timeout options.  
Press Next to scroll through the options until the preferred setting  
appears.  
If you set the loopback timeout to NONE, loopbacks run until  
you clear them manually or turn the unit off.  
4
Press Enter to select the option and return to the LOOPBACK TIMEOUT  
display.  
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VIEWING SYSTEM INFORMATION  
Through the LCD menu you can view the following product information  
(with the option name in parentheses):  
•
•
•
•
•
•
firmware version and PROM checksum (S/W REVand S/W CKSUM)  
hardware configuration information (H/W CONFIG)  
local unit ID (LOCAL UNIT ID)  
remote unit ID (REMOTE UNIT ID)  
remote interface card type (REMOTE I/F)  
circuit ID (CIRCUIT ID)  
You cannot change any of this information through the LCD. Use an ASCII  
terminal to set the local and remote unit IDs, and the circuit ID. See  
“Identifying the Unit and Circuit” on page 67.  
To view the system information:  
1
2
3
Press Escape until CAMPUS RS I/F: REX2 is displayed.  
Press Enter to view the firmware version and PROM checksum.  
Press Next to scroll through the remaining options.  
VIEWING STATUS INFORMATION  
The LCD provides access to the following status information:  
•
•
•
Ethernet information, such as the MAC address and 10/100Base-T status  
Current HDSL margin  
Frame statistics on the LAN (Ethernet) and Line (HDSL) ports  
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Ethernet Information  
You can view the following information about the Ethernet port:  
•
•
•
Link Status  
MAC address  
current 10/100Base-T status  
To view Ethernet information:  
1
2
3
4
5
6
Press Escape until CAMPUS RS I/F: REX2 is displayed.  
Press Next twice. REX2 CONFIG & STATUSis displayed.  
Press Enter. CONFIGURE REX2 SETTINGSis displayed.  
Press Next twice to view the status of the LAN link.  
Press Next to view the status of the LAN link.  
Press Next to view the MAC ADDRESS.  
HDSL Margin  
You can view the current HDSL loop margin values, measured in dB, for the  
local and remote HDSL loop. The listed values represent the margin relative  
to a signal-to-noise ratio required for a Bit Error Rate (BER) of 10-7. A margin  
value greater than zero indicates a performance of better than 10-7. The  
system provides a minimum margin of 6 dB, which translates to a  
performance of 10-10 BER or better.  
To view the HDSL margin:  
1
2
Press Escape until CAMPUS RS I/F: REX2 is displayed.  
Press Next. HDSL LINK CONFIG & STATUSis displayed then  
press Enter.  
3
Press Next until MARGINis displayed.  
PORT STATISTICS  
You can view Bridge and Router Port Statistics for the LAN (Ethernet) and  
Line (HDSL) ports:  
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•
•
•
•
•
•
•
•
•
number of frames received and transmitted  
number of multicast frames received and transmitted  
number of errored frames received and transmitted  
number of undersized frames received  
number of oversized frames received  
number of excessive delay events for transmitted frames  
number of excessive collision events for transmitted frames  
number of bridge frames received and transmitted (Bridge only)  
number of frames received that were discarded (Bridge only)  
Bridge Port Statistics  
To view the Bridge Port Statistics:  
1
2
3
4
Press Escape until CAMPUS RS I/F: REX2is displayed.  
Press Next until REX2 CONFIG & STATUSis displayed.  
Press Enter. CONFIGURE REX2 SETTINGSis displayed.  
Press Enter. NETWORK PROTOCOL = Bridgeis displayed (if not,  
you must change the setting to Bridgeto view Bridge Port Statistics).  
5
6
7
8
9
Press Next until Bridge STATISTICSis displayed.  
Press Enter. FRAMESis displayed.  
Press Enter to display the first screen of statistics.  
Press Next to display the second screen of statistics (if any).  
Press Escape to return to the statistics title screen.  
10 Press Next to advance to the remaining statistic items, displayed in order:  
MULTICASTS, BRIDGEFRAMES, DISCARDS, ERRORS,  
UNDERSIZED, OVERSIZED, EX. DELAY, and EX. COLLISIONS.  
Repeat steps 7-9 as desired to display the statistics.  
11 To clear the statistics, press Next until Press ENTER to Clear  
Statisticsis displayed. Press Enter to reset all statistics to zero.  
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Chapter 7 - Using the LCD for Configuration and Management  
Router Port Statistics  
To view the Router Port Statistics:  
1
2
3
4
Press Escape until CAMPUS RS I/F: REX2is displayed.  
Press Next until REX2 CONFIG & STATUSis displayed.  
Press Enter. CONFIGURE REX2 SETTINGSis displayed.  
Press Enter. NETWORK PROTOCOL = Bridgeis displayed (if not,  
you must change the setting to Bridgeto view Bridge Port Statistics).  
5
6
7
8
9
Press Next until Bridge STATISTICSis displayed.  
Press Enter. FRAMESis displayed.  
Press Enter to display the first screen of statistics.  
Press Next to display the second screen of statistics (if any).  
Press Escape. FRAMES(or the appropriate statistic title screen) is  
displayed.  
10 Press Next to advance to the desired statistic item, displayed in order:  
MULTICASTS, ERRORS, UNDERSIZED, OVERSIZED, EX. DELAY,  
and EX. COLLISIONS. Repeat steps 7-9 as desired to display the  
statistics for the item.  
11 To clear the statistics, press Next until Press ENTER to Clear  
Statisticsis displayed. Press Enter to reset all statistics to zero.  
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INTERNETWORKING AND  
MANAGEMENT OVERVIEW  
8
This chapter provides an overview of internetworking and network  
management concepts used by the Campus-REX2.  
You can configure the Campus-REX2 as a bridge to forward Ethernet data  
based on MAC addresses, or as a router to route Ethernet data based on  
IP addresses. You can also configure parameters for management and  
encapsulation protocols.  
For:  
See Page:  
Composition of a Campus-RS System  
Application  
120  
121  
124  
126  
132  
133  
134  
135  
136  
MAC-Level Bridging and Spanning Tree Protocol  
IP Routing  
Management Protocols  
MIB and Trap Support  
DHCP  
Encapsulation Protocols  
Product Compatibility  
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Chapter 8 - Internetworking and Management Overview  
COMPOSITION OF A CAMPUS-RS SYSTEM  
Campus-RS products accommodate a wide range of network interfaces and  
access speeds in a single platform solution. A Campus-RS system comprises  
these primary elements:  
•
Campus-RS desktop unit—The desktop unit provides a DSL (WAN)  
interface that connects to a line unit (DSL interface) in a Campus-Star  
chassis or back-to-back with another desktop unit DSL interface. You  
can then install any of the customer interface cards listed on page 120 for  
the customer-side network connection.  
•
Campus-Star chassis—This chassis or concentrator provides aggregation  
for up to 14 DSL line connections. Each line connection is made using a  
DSL line unit that connects to a DSL line unit in another Star Chassis or  
to the DSL interface of a desktop unit. You can then install any one of the  
customer interface cards listed below to complement each DSL line unit  
in the chassis for the customer-side network connection.  
You can install a Campus-RS Management Unit (CMU) into the chassis  
for SNMP management of components in the chassis and for  
management of elements attached to the chassis.  
•
Customer interface cards—For connection to the customer network for  
voice, video, and data, the following interface cards are available to  
install into the desktop unit or the Campus-Star chassis:  
–
serial data interfaces such as RS-449, RS-530, RS-530A, V.35, and  
X.21 for connections to a router or other data equipment (with this  
customer interface card, the maximum DSL line connection rate can  
be up to 4.608 Mbps)  
–
flex interface with two serial data ports for RS-449, RS-530,  
RS-530A, V.35, or X.21 interfaces and one DSX-1 voice interface  
(with this customer interface card, the maximum DSL line  
connection rate can be up to 1.544 Mbps)  
–
–
–
CSU/DSU interface (with this customer interface card, the  
maximum DSL line connection rate can be up to 1.544 Mbps)  
G.703 (E1) interface (with this customer interface card, the  
maximum DSL line connection rate can be up to 2.048 Mbps)  
10/100Base-T bridge/router interface (with this customer interface  
card, the maximum DSL line connection rate can be up to 4.6 Mbps)  
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APPLICATION  
The Campus-REX2 must be installed into a Campus-RS or  
Campus-HRS desktop unit or with a Campus-RS or  
Campus-HRS line unit. It cannot be installed in an older  
Campus desktop unit or with an older Campus line unit.  
The Campus system, implementing Campus-REX2 interface cards, provides  
a connection between geographically distributed Ethernet Local Area  
Networks (LANs) in a campus environment. The Campus-REX2 performs  
transparent 802.3 MAC bridging or IP routing. You can use existing  
telephone-grade copper wiring as the HDSL transmission medium.  
When installed in a Campus-RS desktop unit or Campus-Star chassis, the  
Campus-REX2 functions as a remote bridge or IP router. You can use the  
Campus-REX2 to extend subnetworks to remote sites within a campus. Or,  
for sites separated by greater distances, you can use the Campus-REX2 to  
connect them through a public T1/E1 Wide Area Network (WAN). See  
“Point-to-Point LAN Extension” and “LAN Connections Over a WAN” on  
page 123 for more information.  
Campus-REX2 software provides complete main bridging tasks of learning,  
forwarding, filtering, and hashing/buffer management, 802.1d Spanning Tree  
protocol, 802.3 drivers, packet sequencing, segmentation and reassembly,  
and other local tasks.  
The Campus-REX2 10/100Base-T interface operates in either  
half- or full-duplex mode which is determined by autosensing  
its network connection. Both the LCD menu and console  
menu displays the mode.  
The Campus-REX2 performs full-bandwidth filtering on the 10/100Base-T  
port and forwarding at the selected transmission rate.  
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Chapter 8 - Internetworking and Management Overview  
Point-to-Point LAN Extension  
As organizations move or change, LANs also evolve and may become  
fragmented or physically separated. The Campus-REX2 provides a  
lower-cost alternative to other LAN-extension solutions. The Campus-REX2  
provides a built-in 10/100Base-T LAN interface that eliminates the need for  
other internetworking devices while providing 30 times the performance of  
other sub-rate wireless connectivity options, as shown in the following figure.  
10/100Base-T  
10/100Base-T  
HDSL  
LAN  
LAN  
S
Campus-REX2  
Ethernet switch  
Campus-REX2  
HUB  
Remote LAN Site  
Network Center  
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Chapter 8 - Internetworking and Management Overview  
LAN Connections Over a WAN  
When LANs are distributed over a large physical area (such as within a  
metropolitan area) or cabling is not available between sites, you can lease  
appropriate unloaded copper pairs from a local carrier for LAN connectivity.  
For transport over public networks, you can connect the public T1 network  
(DSX-1 signal) to the LAN through desktop units with CSU/DSX-1 interface  
cards and the Campus-REX2 in a desktop unit. This application, as shown in  
the following figure, simplifies access to public high-speed WANs for LAN  
connectivity to remote sites.  
LAN  
Campus-RS  
Campus-RS  
Campus-REX2  
Campus-REX2  
10/100Base-T  
10/100Base-T  
LAN  
DSX-1  
WAN  
LAN  
Campus-REX2  
10/100Base-T  
10/100Base-T  
LAN  
LAN  
Campus-REX2  
Campus-REX2  
Campus-Star  
Public T1  
Network  
10/100Base-T  
DSX-1  
LAN  
Campus-T1  
Campus-REX2  
10/100Base-T  
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Chapter 8 - Internetworking and Management Overview  
MAC-LEVEL BRIDGING AND SPANNING TREE  
PROTOCOL  
The following sections describe the MAC-level bridge and the Spanning Tree  
algorithm function.  
About MAC-Level Bridging  
A bridge moves information across an internetwork from a source to a  
destination at the link layer (of an OSI reference model). The information is  
sent to a physical address known as a Media Access Control (MAC) address.  
The Campus-REX2 provides transparent Ethernet MAC-level bridging. It is  
a completely self-contained bridge with a CPU, memory subsystems (RAM,  
Flash, etc.), an Ethernet controller and Ethernet drivers, and other glue logic.  
It provides complete main bridging tasks of learning, forwarding, filtering,  
and hashing/buffer management. Additionally, it offers 802.1d Spanning  
Tree protocol, packet encapsulation (through cHDLC or PPP framing), and  
other local tasks.  
About Spanning Tree Protocol  
Spanning Tree protocol creates a logical topology to overlay a physical  
network. This overlay disables all loops in the data path. Enabling Spanning  
Tree ensures a unique, primary path from any node on a network to any other  
node. Also, if the primary path is lost, Spanning Tree creates a new primary  
path by enabling links in the physical network that were previously disabled  
in creating the active topology. The following figure shows an example of  
Spanning Tree.  
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Example Physical Network*  
LAN  
Bridge 1  
ENET 1  
Bridge 2  
Bridge 3  
LAN  
E
N
E
T
Bridge 4  
Bridge 5  
ENET 3  
2
Loop-free Topology  
Using Spanning Tree Protocol  
LAN  
Bridge 1  
ENET 1  
Bridge 2  
Bridge 3  
Bridge 4  
LAN  
E
N
E
T
Bridge 5  
ENET 3  
2
*This physical configuration is valid only when used  
with Spanning Tree to eliminate loops.  
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Chapter 8 - Internetworking and Management Overview  
To enable or disable Spanning Tree, see “Configuring Spanning Tree  
Protocol” on page 33. The following elements are required for managing the  
Spanning Tree active topology:  
•
assigning a priority to each bridge relative to all bridges within the  
bridged LAN  
•
•
assigning a priority to each bridge port relative to all ports on a bridge  
assigning a path cost to each port  
IP ROUTING  
The Campus-REX2 offers both dynamic and static routing.  
Static Routing  
Through the static IP routing feature, you can configure the Campus-REX2  
as an IP router with statically programmed route entries. You can enable this  
function as a security feature to prevent eavesdropping and to provide  
broadcast filtering, as well as to specify multiple destination gateways. When  
static IP routing is enabled, you can access only specific remote IP subnets or  
hosts.  
Since IP routers make forward or filter decisions based on the network-layer  
IP address instead of the MAC hardware address, MAC-level broadcast  
frames are prevented from reaching unwanted destinations in the network.  
The following example shows a simple Internet Service Provider (ISP) site  
that uses the static IP routing feature to filter MAC-level broadcast frames  
sourced by ISP Subscriber A from reaching ISP Subscriber B. In this  
example, all frames from Subscriber A and Subscriber B are directed to the  
router at the Network Access Provider site. From there, frames from both  
subscribers are forwarded directly to the Internet.  
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The figure on page 128 shows a more complex example of multiple gateways  
that use static IP routing to route packets sourced from specific users to  
different destination gateways. In this example, packets from each subscriber  
are routed through a common hub to a router dedicated to that subscriber.  
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Chapter 8 - Internetworking and Management Overview  
Configure a Static Route entry in any of the external routers that may have  
been specified as a Default Router IP address or as a Gateway address in the  
Campus-REX2. You may also configure the Campus-REX2 to send periodic  
route updates using Routing Information Protocol (RIP) so that other external  
routers can automatically update their routing tables. This implementation  
prevents other parties from eavesdropping to discover routes to remote sites  
connected through the HDSL line. The format of this entry varies among  
different router vendors, but it will typically be in the form of Destination,  
Mask, and Next Hop Gateway, where:  
•
•
destination is the remote IP subnet or host address  
gateway is the LAN IP address of the Campus-REX2 on the same subnet  
as the external router  
The following figure shows an example of a point-to-point HDSL system  
with hypothetical parameter values.  
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Chapter 8 - Internetworking and Management Overview  
HDSL  
Line  
LAN  
LAN  
Remote Site  
Local Site  
HDSL Modem  
HDSL Modem  
Router to  
172.20.0.0  
Remote  
User  
Bridge/Routing Mode  
Bridge/Routing Mode  
IP Address  
Router  
Packet Encapsulation  
cHDLC  
Router  
Packet Encapsulation  
cHDLC  
LAN IP Address  
192.168.200.5  
172.16.100.1  
Static Route to  
Subnet Mask  
192.168.200.5 via  
IP Static Routing Table  
IP Static Routing Table  
255.255.255.0  
172.16.100.4  
empty  
empty  
empty  
empty  
empty  
empty  
Destination 172.20.0.0  
Gateway 172.16.100.1  
Destination 172.30.0.0  
Gateway 172.16.100.2  
Destination 192.168.200.5  
Gateway 10.10.10.1  
Default Router  
192.168.200.1  
Router to  
172.30.0.0  
LAN IP Address  
172.16.100.2  
Default Router IP ADDR  
10.10.10.2  
Default Router IP ADDR  
Static Route to  
192.168.200.5 via  
172.16.100.4  
172.16.100.3  
LAN IP ADDR:  
192.168.200.1  
LAN IP ADDR:  
172.16.100.4  
Default Router  
LAN SUBNET MASK  
255.255.255.0  
LAN SUBNET MASK  
255.255.255.0  
LINE IP ADDR  
10.10.10.1  
LINE IP ADDR  
10.10.10.2  
LAN IP Address  
172.16.100.3  
LINE SUBNET MASK  
255.255.255.0  
LINE SUBNET MASK  
255.255.255.0  
Static Route to  
192.168.200.5 via  
172.16.100.4  
Dynamic Routing  
Dynamic Routing uses protocols such as RIP and RIPv2 to automatically  
learn the route or next hop it must take based on the IP address of the  
destination contained in the datagram.  
Campus-REX2 IP Addresses  
Each Campus-REX2 unit has two IP addresses, the LAN address and the Line  
address. In the figure on page 131, the non-shaded side of the Campus-REX2  
indicates the LAN address, which is for the Ethernet (10/100Base-T)  
connection. The shaded side of the Campus-REX2 is the IP Line address,  
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Chapter 8 - Internetworking and Management Overview  
which is for the HDSL connection. Note that the IP Line address is different  
from the LAN addresses. When connecting two Campus-REX2 units  
point-to-point through HDSL, the IP Line addresses are completely isolated  
and hidden from the rest of the network. You can assign any subnet to the  
Line IP addresses.  
When routing, data travels one hop at a time. The figure below shows  
destination and next hop IP addresses. The destination address indicates the  
network and subnetwork of the next hop. The next hop is the next-stop IP  
address node. The default gateway is the upstream routing device. Use this  
example to help you determine/record static IP routing addresses.  
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Default Gateway: upstream router address: 192.168.13.209  
Destination: 192.168.242.0 Next Hop 192.168.240.10  
Mask: 255.255.255.0  
IP: 192.168.13.210  
Mask: 255.255.255.0  
IP: 192.168.240.1  
Mask: 255.255.255.0  
The  
Internet  
Provider Router  
DNS Server IP: 192.168.240.20  
Mask: 255.255.255.0  
Provider Server  
Default Gateway: 192.168.240.1 Destination: 192.168.242.0  
Mask: 255.255.255.0 Next Hop 172.16.100.2  
Provider Modem  
IP: 192.168.240.10  
Mask: 255.255.255.0  
IP: 172.16.100.1  
Mask: 255.255.255.0  
Default Gateway: 172.16.100.1  
IP: 172.16.100.2  
IP: 192.168.242.1  
Mask: 255.255.255.0  
Mask: 255.255.255.0  
IP: 192.168.242.5  
Mask: 255.255.255.0  
Default Gateway: 192.168.242.1  
DNS: 192.168.240.20  
Subscriber Modem  
Subscriber PC  
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Chapter 8 - Internetworking and Management Overview  
MANAGEMENT PROTOCOLS  
SNMP is used for remote configuration of system and bridge parameters,  
monitoring statistics, and performing advanced management. FTP is used for  
the Campus-REX2 to download system software code.  
SNMP  
This messaging protocol specifies how to send information between a  
Network Management Station (NMS) or Element Management System  
(EMS) and managed devices on a network.  
SNMP Functions  
Managed devices (such as the Campus-REX2) have agent software or  
firmware that interprets SNMP requests and responds to them. The EMS  
communicates with the agents in the managed devices to:  
•
•
•
set configuration options  
read configuration information  
read status parameters  
A Management Information Base (MIB) defines these configuration and  
status parameters (see “MIB and Trap Support” on page 133). The Internet  
Engineering Task Force (IETF) specifies standard MIBs for certain types of  
devices, ensuring that any NMS can manage them. Additionally, vendors can  
issue proprietary MIBs for their devices that provide higher management  
functionality.  
Campus-REX2 SNMP Agent  
An agent is software or firmware code resident in managed devices (such as  
the Campus-REX2, modems, nodes, routers and hubs). Agents translate data  
on remote networks into code the EMS can read. The EMS uses SNMP as the  
transport mechanism to communicate with an agent. SNMP uses the standard  
Internet Protocol (IP) to transport incoming and outgoing messages to the  
appropriate agent or NMS address. Each SNMP command requires an IP  
address or NMS from the agent to transport these messages.  
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The Campus-REX2 provides an SNMP agent that supports several MIBs for  
the management of the system. The SNMP agent can process datagrams  
received from both the Ethernet interface (LAN) and the HDSL interface  
(Line). See “MIB and Trap Support” on page 133 for a list of MIBS that are  
supported.  
Telnet  
Telnet is a standard TCP/IP protocol used for remote terminal service. Use  
telnet protocol to access the Campus unit for configuration and management  
over the Internet. From the Windows Start menu, select Run. Enter the telnet  
command and the IP address for the Campus-REX2 (default IP address is  
192.168.1.1). The timeout for disconnecting a telnet session is five minutes  
(time frame with no keyboard activity to the Campus unit).  
FTP  
File Transfer Protocol is a TCP/IP standard that is used for moving files  
between devices. Use FTP when you are downloading upgrade software to  
the Campus unit from a server or other network device.  
MIB AND TRAP SUPPORT  
Each managed device has configuration, status, and statistical information  
that defines its functionality and operational capabilities. All of these  
elements make up the MIB for the device being managed. The MIB defines  
the kind of information an NMS can retrieve from a managed device and the  
settings an NMS can control in a managed device.  
The Campus-REX2 supports the following MIBs:  
•
RFC 1213/STD 17, Management Information Base for Network  
Management of TCP/IP-Based Internets: MIB-II. Covers: system,  
interfaces, IP, ICMP, UDP, and SNMP groups. The Ethernet interface  
has the ifIndex value of 1.  
•
RFC 1215, A Convention for Defining Traps for Use with the SNMP.  
Covers: ColdStart, linkUp, linkDown, and authenticationFailure traps.  
Link status traps are sent for events related to Ethernet.  
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Chapter 8 - Internetworking and Management Overview  
•
•
RFC 1493, Definition of Managed Objects for Bridges. Covers: Base,  
Spanning Tree, and transparent bridging groups. The Spanning Tree  
MIB can only be accessed if the Spanning Tree protocol is enabled.  
PG-REX2-MIB, an enterprise specific MIB designed for the agent in the  
Campus-REX2 for managing the HDSL portion of the unit.  
The Campus-REX2 sends traps to devices on the network, which you  
configured as trap receivers, when events or alarms occur. The following are  
traps that the Campus-REX2 can issue:  
•
•
•
•
•
coldStart  
warmStart  
linkDown  
linkUp  
authenticationFailure  
DHCP  
Dynamic Host Configuration Protocol (DHCP) is the protocol used by the  
Campus-REX2 to obtain all necessary configuration information including an  
IP address. The LAN port can be configured as a DHCP client where it will  
automatically obtain its configuration information from a DHCP server on the  
LAN.  
The Campus-REX2 can provide DHCP relay services to devices on its LAN.  
As a DHCP relay agent, the Campus-REX2 can forward requests for IP  
configuration to a DHCP server for which you configure the IP address.  
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ENCAPSULATION PROTOCOLS  
You can select from two packet encapsulation formats for Ethernet data for  
the Campus-REX2:  
•
•
compressed High-level Data Link Control (cHDLC)  
Point-to-Point Protocol (PPP)  
The default setting is cHDLC and should be used in applications with another  
Campus-REX2. Use PPP only if the remote unit is a synchronous interface  
card, such as V.35.  
When PPP is selected for bridging mode, the Campus-REX2 runs the  
Bridging Control Protocol (BCP) RFC 1638. PPP provides interoperability  
with other product types. cHDLC is a compressed version of the  
encapsulation protocol and is preferable when there is like equipment (ADC  
equipment).  
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Chapter 8 - Internetworking and Management Overview  
PRODUCT COMPATIBILITY  
The following sections describe the compatibility among versions of Campus  
products.  
Compatibility with Earlier Campus Products  
When mated with a Campus-RS desktop unit or Campus-RS line unit, the  
Campus-REX2 RS Interface Card is compatible, over the HDSL link, with  
earlier versions of Campus products, such as the Campus-T1, Campus-E1,  
and Campus-768, as shown in the following illustration.  
Campus-T1, Campus-E1 or  
Campus-RS  
Campus-768  
Campus-REX T1,  
Campus-REX E1, or  
Campus-REX 768  
Campus-REX RS  
Interface card  
HDSL  
All earlier versions of Campus products are manufactured to operate at a  
single HDSL transmission rate, while the Campus-RS transmission rate is  
user-selectable. To support compatibility with earlier Campus Products, the  
following configuration options must be set on the Campus-REX2:  
•
•
Set the HDSL Operating Mode to Standard Mode.  
Set the Standard Mode HDSL Rate to T1, E1, or 768, to match the rate  
of the earlier product.  
For information on setting these options, see “Selecting HDSL Parameters”  
on page 21.  
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Compatibility with Campus-RS Products  
The Campus-REX2 RS Interface Card is also compatible, over the HDSL  
link, with another Campus-RS unit, as shown in the following illustration.  
Campus-RS  
Campus-RS  
Campus-RS  
Interface card  
Campus-REX RS  
Interface card  
HDSL  
When connecting to another Campus-RS desktop unit or line unit, Standard  
Mode is still supported, providing access to HDSL transmission rates of T1,  
E1 and 768 kbps. In addition, the Campus-RS system can be configured to  
support an extended set of HDSL transmission rates, over either one or two  
HDSL loops.  
To support these additional transmission rates, set the following options on  
the Campus-REX2:  
•
•
Set the HDSL Operating Mode to Extended Mode.  
Set the Extended Mode Loop Configuration to 1 Loop or 2 Loops,  
depending on the physical layout of your HDSL network.  
•
Set the Extended Mode HDSL Rate to the required setting.  
The range of rates available for the HDSL Rate depends on the setting of  
the Extended Mode Loop Configuration:  
–
1 Loop HDSL rate settings are between 128 kbps and 1.152 Mbps,  
in 64 kbps increments.  
–
2 Loop HDSL rate settings are between 256 kbps and 2.304 Mbps,  
in 128 kbps increments.  
Not all of these modes and rates are available if the remote  
Campus-RS system does not support them. Refer to the  
remote interface card User Manual to see the HDSL modes  
and rates supported by the card.  
For information on setting these options, see “Selecting HDSL Parameters”  
on page 21.  
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Compatibility with Earlier Versions of Campus Products  
Campus-RS Desktop and line units are fully compatible with most of the  
earlier versions of Campus products, including Campus-E1, Campus-T1, and  
Campus-768. The Campus-RS Desktop and line units are not currently  
compatible with Campus-384 products.  
Furthermore, if a Campus-RS unit is connected over an HDSL link to an  
earlier Campus product, and if either unit has the HDSL Transceiver (XCVR)  
Mode set to AUTO, the HDSL link may not operate properly.  
When operating the Campus-RS product with an earlier version of the  
Campus products, to avoid any problems with link startup or operation, it is  
recommended that the Transceiver Mode be set as follows:  
•
•
Campus-RS = MASTER  
Campus E1/T1/768 = SLAVE  
If one or both units are already set to AUTO and the HDSL link is active,  
disconnect the HDSL link, change the settings as recommended, and  
reconnect the link. This will assure the link integrity on any subsequent  
startups.  
This situation does not apply to a circuit with two Campus-RS  
units. You may leave the units set to their default setting of  
AUTO, and they will operate properly.  
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TECHNICAL REFERENCE  
A
SPECIFICATIONS  
Physical  
Height  
0.7 inches (1.8 cm)  
2.8 inches (7.0 cm)  
5.6 inches (14.1 cm)  
4.0 ounces (113.4 gm)  
Width  
Depth  
Weight  
Equipment Interface  
Ethernet Port  
10/100Base-T, half- or full-duplex  
(autosensing)  
Connector  
RJ45C  
Encapsulation Format  
Bridging  
cHDLC or PPP  
IEEE 802.1d Transparent Bridging with  
Spanning Tree Protocol  
Routing  
Static and Dynamic Routing via RIP  
Internal ( 50 ppm), HDSL  
Clock Options  
Electrical  
Power Consumption  
3.5W max  
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Environmental  
Operating Temperature  
Relative Humidity  
0° to 50° C  
0 to 85%  
Electromagnetic Emissions  
Safety Compliance  
Per FCC Part 15 Class A, CE  
UL, CSA, CE  
DEFAULT SETTINGS  
The following table lists default settings for Campus-REX2 RS Interface  
Card configuration options:  
Parameter  
Default  
Bridge/Router Settings  
Bridge/Router Mode  
Encapsulation  
Timing Source  
Spanning Tree  
DHCP  
Bridge  
cHDLC  
Internal  
Disabled  
Disabled  
HDSL Settings  
HDSL Mode  
Standard  
T1  
HDSL Rate  
XCVR Mode  
Auto  
Loopback Timeout  
20 Minutes  
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Appendix A - Technical Reference  
ETHERNET PORT  
The following table lists the 10/100Base-T interface data signals for both  
MDI and MDI-X port selection. By selecting the correct position, you can  
always use a straight-through cable.  
MDI Pin (*) MDI-X Pin  
Signal  
Description  
1
2
3
4
5
6
7
8
3
6
1
4
5
2
7
8
TD+  
TD-  
Transmit Data (+)  
Transmit Data (-)  
Receive Data (+)  
RD+  
RD-  
Receive Data (-)  
(*) A 10/100Base-T port on a PC is always configured as an  
MDI port.  
STANDARDS  
ISO/IEC/IEEE  
Document Number  
Description  
Information technology - Local and metropolitan area  
ISO/IEC 8802-3: 1993 (E)  
ANSI/IEEE Std 802.3, 1993 networks – Part3: Carrier sense multiple access with  
Edition  
collision detection (CSMA/CD) access method and physical  
layer specifications  
ISO/IEC 10038: 1993 (E)  
Information technology – Telecommunications and  
ANSI/IEEE Std 802.1D, 1993 information exchange between systems – Local area  
Edition  
Digital, Intel, and Xerox Blue The Ethernet – A Local Area Network, data-link layer and  
Book, 1982 physical layer specifications, Version 2.0  
networks – Media access control (MAC) bridges  
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Appendix A - Technical Reference  
IETF  
Document Number  
Description  
RFC 768  
RFC 791  
RFC 792  
RFC 826  
RFC 951  
RFC 1058  
RFC 1157  
User Datagram Protocol  
Internet Protocol  
Internet Control Message Protocol  
Ethernet Address Resolution Protocol  
Bootstrap Protocol (BOOTP)  
Routing Information Protocol  
Simple Network Management Protocol (SNMP)  
RFC 1213 / STD 17 Management Information Base for Network Management of  
TCP/IP-based internets: MIB-II  
RFC 1215  
RFC 1332  
RFC 1350  
RFC 1493  
RFC 1497  
Convention for defining traps for use with SNMP  
The PPP Internet Protocol Control Protocol (IPCP)  
The TFTP Protocol (Revision 2)  
Definitions of Managed Objects for Bridges  
BOOTP Vendor Information Extensions [Obsoleted by RFC 1533, RFC  
2132]  
RFC 1542  
RFC 1638  
RFC 1661  
RFC 1723  
RFC 1724  
RFC 2131  
RFC 2132  
RFC 2878  
Clarifications and Extensions for the Bootstrap Protocol  
PPP Bridging Control Protocol (BCP) [Obsoleted by RFC 2878]  
The Point-to-Point Protocol (PPP)  
RIP Version 2 – Carrying Additional Information  
RIP Version 2 MIB Extensions  
Dynamic Host Configuration Protocol  
DHCP Options and BOOTP Vendor Extensions  
PPP Bridging Control Protocol (BCP) [Obsoletes 1638]  
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ABBREVIATIONS  
B
2 Binary,1 Quaternary  
2B1Q  
ARP  
BER  
CMU  
CTS  
Address Resolution Protocol  
Bit Error Rate  
Campus Management Unit  
Clear to Send  
Data Circuit-Terminating Equipment  
Dynamic Host Configuration Protocol  
Data Set Ready  
DCE  
DHCP  
DSR  
DSX-1  
DTE  
DS1 Cross-connect Frame  
Data Terminal Equipment  
Data Terminal Ready  
DTR  
ES  
Errored Seconds  
File Transfer Protocol  
FTP  
High-level Data Link Control  
High-bit-rate Digital Subscriber Lines  
Internet Protocol  
HDLC  
HDSL  
IP  
Loss of Signal  
LOS  
MAC  
Media Access Control Protocol  
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Appendix B - Abbreviations  
Non-volatile Random Access Memory  
NVRAM  
POTS  
PPP  
RD  
Plain Old Telephone Service  
Point-to-Point Protocol  
Receive Data  
Routing Information Protocol  
Receive Line Signal Detect  
Rate Selectable  
RIP  
RLSD  
RS  
Request to Send  
RTS  
SCR  
SCT  
SD  
Serial Clock Receive  
Serial Clock Transmit  
Send Data  
Simple Network Management Protocol  
Signal to Noise Ratio  
Spanning Tree Protocol  
Terminal Timing  
SNMP  
SNR  
STP  
TT  
Unavailable Seconds  
Underwriters Laboratory  
Virtual Local Area Network  
UAS  
UL  
VLAN  
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CONTACTING ADC  
D
ADC Customer Service Group provides expert pre-sales and post-sales  
support and training for all its products.  
Technical support is available 24 hours a day, 7 days a week by contacting  
the ADC Technical Assistance Center.  
•
•
•
Quotation Proposals  
Sales Assistance  
Ordering and Delivery  
General Product Information  
800.366.3891 extension 73000  
(USA and Canada)  
952.917.3000  
Fax: 952.917.3237  
•
Complete Solutions (from concept to  
installation)  
Systems Integration  
800.366.3891, extension 73000  
(USA and Canada)  
•
•
•
•
•
•
•
•
•
•
•
•
Network Design and Integration Testing  
System Turn-Up and Testing  
952.917.3000  
Network Monitoring (upstream or downstream)  
Power Monitoring and Remote Surveillance  
Service/Maintenance Agreements  
Systems Operation  
Technical Information  
ADC Technical Assistance Center  
800.366.3891, ext.73223  
952.917.3223  
Fax: 952.917.3244  
Email: [email protected]  
System/Network Configuration  
Product Specification and Application  
Training (product-specific)  
Installation and Operation Assistance  
Troubleshooting and Repair/Field Assistance  
Continued  
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Appendix D - Contacting ADC  
•
•
•
www.adc.com/Knowledge_Base/index.jsp  
www.adc.com/library1/  
Online Technical Support  
Online Technical Publications  
ADC Return Material Authorization (RMA)  
number and instructions must be obtained  
before returning products.  
Product Return Department  
800.366.3891 ext. 73748 or  
952.917.3748  
Fax: 952.917.3237  
Email: repair&[email protected]  
All 800 lines are toll-free in the USA and Canada.  
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INDEX  
assistance .............................................145  
authentication error trap generation ......62  
Auto Master/Slave mode  
Numerics  
10/100Base-T  
checking line status ........................ 7  
10BASE-T  
LCD ............................................102  
address ....................................... 129  
connecting the Ethernet cable ....5–6  
status .......................................... 116  
24-hour HDSL alarm history  
B
bridge ...................................................124  
configuring ..........................30, 104  
Bridge/Router Mode ............................103  
ASCII terminal ............................ 76  
LCD ........................................... 111  
7-day HDSL alarm history ................... 77  
C
Campus Management Unit  
See LCD  
A
Campus-768 ........................................136  
Campus-E1 ..........................................136  
Campus-Star  
alarm history ......................................... 79  
ASCII terminal ............................ 76  
LCD ........................................... 111  
Alarm on Local I/F LOS ....................... 26  
alarm status ......................................... 113  
ASCII terminal ......................75–78  
LCD ........................................... 109  
alarm thresholds  
connecting to an ASCII terminal ....9  
installing the card ...........................4  
Campus-T1 ..........................................136  
circuit ID ...............................................67  
LCD ............................................115  
clearing loopbacks  
ASCII terminal ............................ 26  
LCD ........................................... 110  
ASCII terminal ..................................... 87  
configuring alarms ....................... 26  
connecting .................................... 11  
logging on .................................... 12  
port statistics ..........................80–82  
restoring default settings .............. 70  
SNMP configuration .................... 60  
console interface ...........................88  
LCD ............................................114  
CMU  
See LCD  
communications settings for terminal ...11  
compatibility .......................... 2, 136–137  
configuring ..........................................113  
See also ASCII terminal  
See also LCD  
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Index  
connecting  
threshold on an ASCII terminal ...26  
threshold on the LCD .................110  
Escape button ........................................98  
Ethernet  
Ethernet cable ............................5–6  
PC orI terminal .............................. 8  
console port  
local REX2 logon ........................ 13  
remote REX2 logon ..................... 15  
current HDSL status .......................75–78  
address ........................................129  
checking line status ........................7  
connecting the cable .................. 5–6  
status ...........................................116  
Extended Mode  
D
date ....................................................... 67  
description ..................................137  
setting on LCD ...........................103  
default configuration settings  
restoring on LCD ....................... 108  
Default Router  
F
router ............................................ 44  
desktop unit  
firmware version .................................115  
frame statistics  
compatibility .................................. 2  
connecting an ASCII terminal ....... 9  
installing the card .......................... 3  
DHCP ................................................. 134  
dropped frames ..................................... 84  
ASCII terminal ......................80–82  
ASCII terminal ......................80–82  
H
HDSL  
address ........................................129  
alarm thresholds ...........................26  
Operating Mode ................ 136–137  
status  
E
Encapsulation  
ASCII terminal ............. 75–78  
LCD .......................... 109, 116  
timing .........................................104  
history of alarm conditions  
router ............................................ 44  
encapsulation protocols ...................... 135  
Enter button ......................................... 98  
error trap generation ............................. 62  
errored second  
ASCII terminal ......................76, 79  
LCD ............................................111  
See ES alarm  
I
ES alarm ............................................. 109  
initiating loopbacks  
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Index  
console interface .......................... 88  
LCD ........................................... 114  
log on  
local unit .......................................13  
remote REX2 unit .........................15  
setting communications settings ...11  
telnet .............................................12  
logging off of ASCII terminal ...............16  
logging onto ASCII terminal .................12  
Loop Configuration  
installing in  
Campus-Star .................................. 4  
desktop unit .................................... 3  
interface card product information ..... 115  
IP router .............................................. 126  
configuration ................................ 44  
table ............................................. 51  
setting on ASCII terminal ............23  
setting on LCD ...........................101  
loopback timeout  
L
LAN address ....................................... 129  
console interface ...........................88  
LCD ............................................114  
loopbacks  
LAN IP Address ................................... 44  
LAN Subnet Mask ................................ 44  
LCD  
LCD ...................................113–115  
LOS alarm  
Master/Slave settings ................. 102  
restoring default settings ............ 108  
viewing and configuring alarms 109  
legacy Campus products ..................... 136  
Line address ........................................ 129  
Line IP Address .................................... 44  
Line Subnet Mask ................................. 44  
Line Unit compatibility .......................... 2  
Link alarm ........................................... 109  
LINK LED .............................................. 7  
local alarms  
ASCII terminal .............................79  
LCD ............................................111  
loss of signal alarm  
See LOS alarm  
M
MAC address .......................................116  
MAC-level bridging ............................124  
main chassis information .....................115  
management protocols ................132–134  
margin  
history .......................................... 79  
LCD ........................................... 111  
local to remote loopback ...............87, 113  
local unit ID ........................................ 115  
alarm ...........................................109  
ASCII terminal ......................75–78  
LCD ............................................116  
Campus-REX2 RS Interface Card User Manual  
149  
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Index  
margin threshold  
ASCII terminal ......................80–82  
remote alarms  
ASCII terminal ............................ 26  
LCD ........................................... 110  
Master mode  
ASCII terminal .............................79  
LCD ............................................112  
remote interface card ...........................115  
remote to remote loopback ........... 87, 113  
remote unit ID .....................................115  
restoring default settings  
LCD ........................................... 102  
menu buttons ........................................ 98  
MIBs ................................................... 132  
N
LCD ............................................108  
router ...................................................126  
configuration ................................44  
IP static router table .....................51  
navigating menus .................................. 16  
network SNMP management ................ 60  
Next button ........................................... 98  
P
S
password ............................................... 69  
serial numbers .....................................115  
PC  
setting ....................................................99  
seven-day HDSL alarm history .............77  
Slave mode  
connecting ...................................... 8  
key functions ............................... 16  
navigating menus ......................... 16  
see terminal .................................... 8  
port statistics  
LCD ............................................102  
SNMP ..................................................132  
configuring ...................................60  
Spanning Tree .....................................124  
specifications .......................................139  
Standard Mode  
ASCII terminal ......................80–82  
power up ................................................. 7  
product release dates ........................... 115  
PROM checksum ................................ 115  
protocols .....................................132–135  
provisioning  
description ..................................136  
setting on LCD ...........................101  
starting loopbacks  
See ASCII terminal  
LCD ............................................114  
startup parameters, DHCP ...................134  
static IP routing ...................................126  
See LCD  
R
received frames  
150  
Campus-REX2 RS Interface Card User Manual  
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Index  
static router table .................................. 51  
statistics  
ASCII terminal ......................80–82  
trap generation .......................................62  
ASCII terminal ......................80–82  
status  
U
unit ID ...................................................67  
HDSL .....................................75–78  
LCD ........................................... 109  
system information  
X
XCVR Mode  
See Transceiver Mode  
LCD ........................................... 115  
T
technical assistance ............................. 145  
technical specifications ....................... 139  
terminal  
communications settings .............. 11  
connecting ...................................... 8  
See ASCII terminal  
testing  
Ethernet line ................................... 7  
loopbacks  
LCD ..........................113–115  
time ....................................................... 67  
timeout  
console interface .......................... 88  
LCD ........................................... 114  
timing source ...................................... 104  
Transceiver Mode  
LCD ........................................... 102  
transmission rate .........................136–137  
setting ........................................... 99  
transmitted frames  
Campus-REX2 RS Interface Card User Manual  
151  
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Index  
152  
Campus-REX2 RS Interface Card User Manual  
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World Headquarters  
ADC Telecommunications, Inc.  
PO Box 1101  
Minneapolis, MN 55440-1101 USA  
Technical Assistance  
Tel:  
Tel:  
800.366.3891 x73223  
952.917.3223  
Fax: 952.917.3244  
Email: [email protected]  
´,e6¶4¶¨  
PART NUMBER: 1269224  
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