Cisco Systems Network Card PA POS 1OC3 User Manual

PA-POS-1OC3 Single-Port Port Adapter  
Installation and Configuration Guide  
Platforms: Cisco 7200 VXR Routers, Cisco 7201 Router, Cisco 7301 Router,  
Cisco 7304 Router, Cisco 7401 Router, VIP in Cisco 7500 Series Routers,  
FlexWAN Module in Cisco 7600 Series Routers  
Americas Headquarters  
Cisco Systems, Inc.  
170 West Tasman Drive  
San Jose, CA 95134-1706  
USA  
Tel: 408 526-4000  
800 553-NETS (6387)  
Fax: 408 527-0883  
Text Part Number: OL-6514-04  
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Preface  
This preface describes the objectives and organization of this document and explains how to find  
additional information on related products and services. This chapter contains the following sections:  
Document Version History  
The version history of this document is provided below beginning with version OL-6514-03.  
Version  
Date  
Notes  
OL-6514-04  
OL-6514-03  
April 2007  
Feb. 26, 2006  
Added Cisco 7201 router support.  
Added Cisco 7600 series routers and Cisco 7401ASR  
router support.  
OL-6514-02  
November 22, 2006  
Added Cisco 7304 router support.  
Objectives  
This document describes how to install and configure the PA-POS-1OC3 single-port  
Packet-over-SONET (POS) port adapter, hereafter referred to as the PA-POS-1OC3, which is used in the  
following platforms:  
Cisco 7200 VXR routers, which consist of the 4-slot Cisco 7204VXR router and the 6-slot  
Cisco 7206VXR router  
Cisco 7201 router  
Cisco 7301 router  
Cisco 7304 PCI port adapter carrier card in the Cisco 7304 router  
Cisco 7401ASR router  
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Preface  
Organization  
Cisco 7500 series routers, which consist of the 5-slot Cisco 7505, the 7-slot Cisco 7507, and the  
13-slot Cisco 7513 routers.  
Cisco 7600 series routers, which consist of the 3-slot Cisco 7603, the 6-slot Cisco 7606, the 9-slot  
Cisco 7609, and the 13-slot Cisco 7613 routers, using FlexWAN and Enhanced FlexWAN modules.  
Organization  
This document contains the following chapters:  
:
Section  
Title  
Description  
Describes the PA-POS-1OC3 and its LEDs and cables.  
Provides supporting information about addressing,  
networks, and SONET.  
Describes safety considerations, tools required, and  
procedures you should perform before the actual  
installation.  
Provides instructions for removing and installing the  
PA-POS-1OC3 port adapter  
Chapter 4 Configuring the PA-POS-1OC3 Provides instructions for configuring the  
PA-POS-1OC3 on the supported platforms.  
Related Documentation  
Your router or switch and the Cisco IOS software running on it contain extensive features and  
functionality, which are documented in the following resources:  
Cisco IOS software:  
For configuration information and support, refer to the modular configuration and modular  
command reference publications in the Cisco IOS software configuration documentation set that  
corresponds to the software release installed on your Cisco hardware.  
Note  
You can access Cisco IOS software configuration and hardware installation and maintenance  
documentation on the World Wide Web at http://www.cisco.com. Translated documentation  
Cisco 7200 VXR routers:  
For an online directory to quickly access documents for Cisco 7200 VXR routers, refer to the  
Cisco 7200 Series Routers Documentation Roadmap at the following URL:  
186a00801c0915.html  
For hardware installation and maintenance information, refer to the Cisco 7200 VXR  
Installation and Configuration Guide or the Cisco 7200 VXR Routers Quick Start Guide.  
For port adapter hardware installation and memory configuration information, refer to the  
Cisco 7200 Series Port Adapter Hardware Configuration Guidelines.  
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Preface  
Related Documentation  
For information on network processing engines or network services engines, refer to the  
Network Processing Engine and Network Services Engine Installation and Configuration  
document.  
For more information about the Cisco 7206 or the Cisco 7206VXR as a router shelf, see the  
Cisco AS5800 Series Universal Gateways documents at the following URL:  
html  
Cisco 7201 router:  
For an online directory to quickly access documents for the Cisco 7201 router, refer to the  
Cisco 7201 Router Documentation Roadmap at the following URL:  
oadmap09186a00807f635a.html  
For hardware installation and maintenance information, refer to the Cisco 7201 Installation and  
Configuration Guide or the Cisco 7201 Router Quick Start Guide.  
Cisco 7301 router:  
For an online directory to quickly access documents for the Cisco 7301 router, refer to the  
Cisco 7301 Internet Router Documentation Roadmap at the following URL:  
186a00801c0f21.html  
For hardware installation and maintenance information, refer to the Cisco 7301 Installation and  
Configuration Guide or the Cisco 7301 Router Quick Start Guide.  
Cisco 7304 PCI Port Adapter Carrier Card in the Cisco 7304 router:  
For an online directory to quickly access documents for the Cisco 7304 PCI Port Adapter  
Carrier Card in the Cisco 7301 router, refer to the Cisco 7304 Router Line Card, Carrier Card,  
Port Adapter, Modular Services Card, and Shared Port Adapter Documentation Roadmap at the  
following URL:  
186a00801c0f5e.html  
For hardware installation and maintenance information, refer to the Cisco 7304 PCI Port  
Adapter Carrier Card Installation and Configuration Guide.  
Cisco 7401ASR router:  
For an online directory to quickly access documents for the Cisco 7401ASR router, refer to the  
Cisco 7401ASR Router Documentation Roadmap at the following URL:  
186a00801c0fd5.html  
For hardware installation and maintenance information, refer to the Cisco 7401ASR Installation  
and Configuration Guide or the Cisco 7401ASR Router Quick Start Guide.  
Cisco 7500 series routers:  
For an online directory to quickly access documents for the Cisco 7500 series routers, refer to  
the Cisco 7500 Series Routers Documentation Roadmap at the following URL:  
186a00801c0f9b.html  
For hardware installation and maintenance information, refer to the Cisco 7500 Series  
Installation and Configuration Guide or the online quick start for your Cisco 7500 series router.  
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Preface  
Obtaining Documentation, Obtaining Support, and Security Guidelines  
Cisco 7600 series routers with the FlexWAN module:  
For an online directory to quickly access documents for the Cisco 7600 series routers, refer to  
the Cisco 7600 Series Routers Documentation Roadmap at the following URL:  
186a00801ebed9.html  
For hardware installation and maintenance information, refer to the online installation and  
configuration guide for your Cisco 7600 series router.  
For automatic protection switching (APS) configuration information, refer to the APS  
documentation at the following URL:  
ad9.html  
For international agency compliance, safety, and statutory information for WAN interfaces, refer to  
the following documents. Use the documentation roadmap for your particular router to link to the  
appropriate documents for your router:  
Cisco AS5800 Universal Access Server Regulatory Compliance and Safety Information  
Regulatory Compliance and Safety Information for Cisco 7200 Series Routers  
Regulatory Compliance and Safety Information for the Cisco 7301 Internet Router  
Regulatory Compliance and Safety Information for the Cisco 7304 Internet Router  
Regulatory Compliance and Safety Information for the Cisco 7500 Series Routers  
Regulatory Compliance and Safety Information for the Cisco 7600 Series Routers  
For fiber-optic cleaning information, see Inspection and Cleaning Procedures for Fiber-Optic  
Connections at the following URL:  
l
Obtaining Documentation, Obtaining Support, and Security  
Guidelines  
For information on obtaining documentation, obtaining support, providing documentation feedback,  
security guidelines, and also recommended aliases and general Cisco documents, see the monthly What’s  
New in Cisco Product Documentation, which also lists all new and revised technical documentation at:  
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C H A P T E R  
1
PA-POS-1OC3 Overview  
This chapter describes the PA-POS-1OC3 and contains the following sections:  
PA-POS-1OC3 Overview  
The PA-POS-1OC3 provides a single Packet-over-SONET (POS) port in a single port adapter slot. The  
port functions as a single independent OC-3c/STM1 port. The PA-POS-1OC3 is used as a direct  
connection between the supported router or switch platform and an external network.  
The PA-POS-1OC3 fits into a single port adapter slot on the Cisco 7201 router, Cisco 7204VXR router,  
Cisco 7206VXR router, Cisco 7301 router, Cisco 7304 PCI port adapter carrier card in Cisco 7304  
router, the 7401ASR router, Cisco 7500 series routers (Cisco 7505, Cisco 7507, Cisco 7513), and  
Cisco 7600 series routers (Cisco 7603, Cisco 7606, Cisco 7609, Cisco 7613) with FlexWAN or  
Enhanced FlexWAN.  
Note  
The Cisco 7206VXR router can be used as a router shelf in a Cisco AS5800 universal access server.  
Refer to the Cisco AS5800 documentation at the following URL:  
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Chapter 1 PA-POS-1OC3 Overview  
SONET/SDH Overview  
Figure 1-1 shows the PA-POS-1OC3 faceplate.  
Figure 1-1  
PA-POS-1OC3 Faceplate  
PA-POS-1OC3  
RX  
TX  
ALARM  
RCV  
ENABLED  
POS  
0
SONET/SDH Overview  
The POS specification addresses the use of PPP encapsulation over SONET/Synchronous Digital  
Hierarchy (SDH) links. SONET is an American National Standards Institute (ANSI) standard  
(T1.105-1988) for optical digital transmission at hierarchical rates from 51.840 Mbps (STS-1) to  
2.5 Gbps (STS-48) and greater. SDH is the international standard for optical digital transmission at  
hierarchical rates from 155.520 Mbps (STM-1) to 2.5 Gbps (STM-16) and greater.  
Because SONET/SDH is by definition a point-to-point circuit, PPP is well suited for use over these links.  
PPP was designed as a standard method of communicating over point-to-point links.  
SONET is an octet-synchronous multiplex scheme that defines a family of standard rates and formats.  
The basic rate for POS is that of STS-3c/STM-1, which is 155.520 Mbps. The available information  
bandwidth is 149.760 Mbps, which is the STS-3c/STM-1 Synchronous Payload Envelope (SPE), the  
payload portion of the SONET frame into which the octet-oriented user data is mapped. (Octet  
boundaries are aligned with the SPE octet boundaries.) For the SPE with the PA-POS-1OC3, section,  
line, and path overhead are removed.  
The International Telecommunications Union Telecommunication Sector (ITU-T) defines a series of  
SDH transmission rates beginning at 155.520 Mbps, as follows:  
SONET1  
STS-3c2  
STS-12c  
STS-48c  
SDH Equivalent  
STM-12  
STM-4c  
STM-16c  
1. ANSI-defined SONET specifications.  
2. Supported by the PA-POS-1OC3.  
Despite the name, SONET is not limited to optical links. Electrical specifications have been defined for  
single-mode fiber, multimode fiber, and CATV 75-ohm coaxial cable. The PA-POS-1OC3 allows  
transmission over single-mode and multimode optical fiber. Transmission rates are integral multiples of  
51.840 Mbps, which can be used to carry T3/E3 bit-synchronous signals.  
The following transmission multiples are currently specified and commonly used:  
STS-12c—622.080 Mbps  
STS-48c—2,488.320 Mbps  
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Chapter 1 PA-POS-1OC3 Overview  
Features  
The following references discuss concepts and specifications of POS and PPP:  
Simpson, W, Editor, The Point-to-Point Protocol (PPP), RFC 1548, Daydreamer, December 1993.  
Simpson, W, Editor, PPP in HDLC -like Framing, RFC 1662, Daydreamer, July 1994.  
Simpson, W, Editor, PPP over SONET/SDH, RFC 1619, May 1995.  
American National Standard for Telecommunications - Digital Hierarchy - Optical Interface Rates  
and Formats Specification, ANSI T1.105-1991.  
American National Standard for Telecommunications - Synchronous Optical Network (SONET)  
Payload Mappings, ANSI T1.105.02-1993 draft.  
ITU-T Recommendation G.707, Synchronous Digital Hierarchy Bit Rates, June 1992.  
Features  
The PA-POS-1OC3 features include:  
Single-port Packet-over-SONET capabilities with a single-width port adapter  
Single product ID (PA-POS-1OC3), with configuration options for small form-factor pluggable  
(SFP) optic modules:  
POM-OC3-MM (short range, multimode fiber)  
POM-OC3-SMIR (intermediate range, single-mode fiber)  
POM-OC3-SMLR (long range, single-mode fiber)  
Field-replaceable SFP optic modules  
Automatic protection switching (APS)  
Supports network processing and switching engines—NPE-400, NPE-G1, NSE-1 on the  
Cisco 7200 VXR platform  
Online insertion and removal (OIR) allowing you to remove, add, or replace a PA-POS-1OC3 when  
the system is online  
Standards-compliant SONET/SDH interface; SONET/STS-3c and SDH/STM-1 framing and  
signaling overhead  
Full-duplex operation at 155 Mbps (half-duplex operation is not supported)  
Self-synchronous x^43+1 scrambling and descrambling of packets  
Support for 16- and 32-bit cyclic redundancy checking (CRC-16 and CRC-32)  
Single-mode or multimode fiber-optic cables capability  
For information on the single-mode and multimode cables to use with the Cisco PA-POS-1OC3 port  
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Chapter 1 PA-POS-1OC3 Overview  
Interface Specifications  
Interface Specifications  
The physical layer interface for the PA-POS-1OC3 is Optical Carrier-3 (OC-3c), the specification for  
SONET STS-3c and SDH STM-1 transmission rates, and the PA-POS-1OC3 is designed to comply with  
Packet-over-SONET specifications. The PA-POS-1OC3 provides one 155.520-Mbps packet OC-3  
network interface for all supported platforms.  
The PA-POS-1OC3 has a duplex LC-type receptacle that allows connection to single-mode or multimode  
optical fiber. (For more information on the optical fiber cables you should use with this port adapter, see  
Packet data is transported using Point-to-Point Protocol (PPP) and is mapped into the STS-3c/STM-1  
frame. The encapsulations used add approximately half the number of bytes of transport overhead as that  
involved with ATM using ATM Adaptation Layer 5 (AAL5) and line card control (LCC) Subnetwork  
Access Protocol (SNAP) encapsulations.  
The PA-POS-1OC3 interface is compliant with RFC 1619, PPP over SONET/SDH, and RFC 1662, PPP  
in HDLC-like Framing. The PA-POS-1OC3 supports RFC 1619 PPP over SONET/SDH encapsulation,  
and provides support for SNMP agent v1 (RFC 1155–1157), and Management Information Base (MIB)  
II (RFC 1213).  
OC-3 Optical Fiber Specifications  
The OC-3 specification for optical fiber transmission defines two types of fiber: single-mode and  
multimode. Within the single-mode category, two types of transmission are defined: intermediate reach  
and long reach. Within the multimode category, only short reach is available.  
Modes can be thought of as bundles of light rays entering the fiber at a particular angle. Single-mode  
fiber allows only one mode of light to propagate through the fiber, and multimode fiber allows multiple  
modes of light to propagate through the fiber.  
Multiple modes of light propagating through the fiber travel different distances depending on the entry  
angles, which causes them to arrive at the destination at different times (a phenomenon called modal  
dispersion); therefore, single-mode fiber is capable of higher bandwidth and greater cable run distances  
than multimode fiber. Table 1-1 lists nominal OC-3 optical parameters for single-mode and multimode  
optical fiber transmission.  
Note  
If the distance between two connected stations is greater than the maximum distances listed, significant  
signal loss can result, making transmission unreliable.  
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Chapter 1 PA-POS-1OC3 Overview  
OC-3 Optical Fiber Specifications  
Table 1-1 lists the OC-3 optical parameters.  
Table 1-1  
OC-3 Optical Parameters  
Transceiver  
Type1  
Transmit  
Power  
Maximum Power  
to Receiver2, dBm  
Receiver  
Sensitivity, dBm  
Loss  
Budgets, dB  
Nominal Distance  
Between Stations  
Single-mode3  
long reach  
–5 dBm min.  
–10  
–34  
–28  
–30  
10 to 28  
Up to 25 mi. (40 km)  
to 0 dBm max.  
at 1280–1335 nm4  
Single-mode5  
intermediate reach to –8 dBm max.  
–15 dBm min.  
–8  
0 to 12  
0 to 7  
Up to 9 mi. (15 km)  
Up to 1.2 mi. (2 km)  
at 1280–1335 nm4  
Multimode6  
short reach  
–20 dBm min.  
–8  
to –14 dBm max.  
at 1280–1335 nm4  
1. This table gives nominal OC-3 optical parameters.  
2. This value represents the maximum power to which any receiver can be exposed.  
3. Complies with Bellcore GR-253-CORE Long Reach Specification (LR-1).  
4. Nominal wavelength is 1310 nm.  
5. Complies with Bellcore GR-253-CORE Intermediate Reach Specification (IR-1).  
6. Complies with Short-Reach OC-3 Specification SR-OC-3.  
To calculate link losses and dispersion losses for your application, refer to the following specifications  
and documents:  
EIA/TIA-IVa Dispersion Unshifted Single-Mode Fiber  
EIA-TIA-IVb Dispersion Shifted Single-Mode Fiber  
GR-20-CORE, Generic Requirements for Optical Fiber and Fiber-Optic Cable  
ITU-T Recommendation G.957, Optical Interfaces for Equipment and Systems Relating to the  
Synchronous Digital Hierarchy  
Network Management Support  
Following is the protocol and MIB support for the PA-POS-1OC3:  
SNMP agent v1 (RFC 1155–1157)  
MIB II (RFC 1213); POS MIB support is available with Cisco IOS Release 12.0  
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Chapter 1 PA-POS-1OC3 Overview  
Using Statistics to Estimate Link Loss and Power Budget  
Encapsulation Method Support  
The following encapsulation methods are supported by the PA-POS-1OC3:  
RFC 1619 PPP over SONET/SDH  
We recommend that you refer to the Internet Draft Enabling Transparency for the PPP over  
SONET/SDH Mapping, which is recognized by the Internet Engineering Task Force (IETF) and  
Internet Engineering Steering Group (IESG) as an approved addendum to RFC 1619.  
High-Level Data Link Control (HDLC)  
Frame Relay  
Using Statistics to Estimate Link Loss and Power Budget  
Statistical models more accurately determine the power budget than standard worst-case methods.  
Determining the link loss with statistical methods requires accurate knowledge of variations in the data  
link components. Statistical power budget analysis is beyond the scope of this document. For further  
information, refer to ITU-T standards and your equipment specifications.  
The following publications contain information on determining attenuation and power budget:  
T1E1.2/92-020R2 ANSI, the Draft American National Standard for Telecommunications entitled  
Broadband ISDN Customer Installation Interfaces: Physical Layer Specification.  
Power Margin Analysis, AT&T Technical Note, TN89-004LWP, May 1989.  
LEDs  
The PA-POS-1OC3 faceplate has three LEDs that indicate port adapter and interface status. (See  
Figure 1-2  
PA-POS-1OC-3 LEDs—Faceplate View Shown  
PA-POS-1OC3  
RX  
TX  
ALARM  
RCV  
ENABLED  
POS  
0
Table 1-2 lists the LEDs colors, status, and function.  
Table 1-2  
PA-POS-1OC3 LEDs  
LED Label  
Color  
State  
Function  
ENABLED  
Green  
On  
Off  
On  
Off  
Enabled for operation  
Not enabled  
ALARM  
Orange  
There are SONET alarms on the interface  
No alarms  
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Chapter 1 PA-POS-1OC3 Overview  
Cables and Connectors  
Table 1-2  
PA-POS-1OC3 LEDs (continued)  
LED Label  
Color  
State  
Function  
RCV  
Green  
On  
Receive signal is present (a cable is attached and the link  
is up)  
Off  
No signal is present  
Green  
Blinking  
Off  
Packets are currently being received  
No signal is present  
After system initialization, the ENABLED LED comes on to indicate that power is received and that the  
PA-POS-1OC3 port adapter is enabled for operation.  
The following conditions must all be met before the PA-POS-1OC3 is enabled:  
The PA-POS-1OC3 is correctly connected and receiving power.  
The host system software supports the PA-POS-1OC3.  
If any of these conditions are not met, or if the initialization fails, the ENABLED LED does not come on.  
Cables and Connectors  
Use single-mode (for intermediate- or long-reach configurations) or multimode optical fiber cable to  
connect your router to a network or to connect two OC-3-equipped routers back-to-back.  
Note  
Long-range SFP optics modules (for long-reach configurations) cannot be connected  
back-to-back without using an attenuator between the two of them.  
The PA-POS-1OC3 provides the following optical fiber options:  
Multimode—155 Mbps, OC-3 optical fiber (SONET STS-3c or SDH STM-1)  
Use a multimode optical fiber that has a core/cladding diameter of 62.5/125 microns.  
Single-mode—155 Mbps, OC-3 optical fiber (SONET STS-3c or SDH STM-1)  
Use a single-mode optical fiber that has a core/cladding diameter of 8-9/125 microns. (Nominal  
diameter is approximately 10/125 microns.)  
Note  
For maximum cable lengths between stations, see Table 1-1 on page 1-5. Single-mode and multimode  
optical fiber cables for the PA-POS-1OC3 are not available from Cisco Systems; however, they are  
available from commercial cable vendors.  
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Chapter 1 PA-POS-1OC3 Overview  
Port Adapter Slot Locations on the Supported Platforms  
The PA-POS-1OC3 has a single duplex LC-type receptacle. For SONET/SDH single-mode and  
multimode optical fiber connections, you can use a simplex LC-type cable (see Figure 1-3) for the  
transmit (TX) and receive (RX) connections.  
Figure 1-3  
Duplex Patch Cable with LC-type Connectors  
/ /  
/ /  
/ /  
RX  
TX  
Note  
For important laser and LED safety information, see the “Laser Safety” section on page 2-11.  
Port Adapter Slot Locations on the Supported Platforms  
The following sections describe the port adapter slot locations in the supported platforms:  
Cisco 7200 VXR Routers Slot Numbering  
Cisco 7204VXR routers have four slots for port adapters, and one slot for an input/output (I/O)  
controller. The slots are numbered from the lower left to the upper right, beginning with slot 1 and  
continuing through slot 4. You can place a port adapter in any of the slots (slot 1 through slot 4). Slot 0  
is always reserved for the I/O controller. The Cisco 7204VXR router is not shown.  
Cisco 7206VXR routers (including Cisco 7206VXR routers as router shelves in a Cisco AS5800  
Universal Access Server) have six slots for port adapters, and one slot for an input/output (I/O)  
controller. The slots are numbered from the lower left to the upper right, beginning with slot 1 and  
continuing through slot 6. You can place a port adapter in any of the six slots (slot 1 through slot 6).  
Slot 0 is always reserved for the I/O controller.  
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Chapter 1 PA-POS-1OC3 Overview  
Port Adapter Slot Locations on the Supported Platforms  
Figure 1-4 shows the slot numbering on a Cisco 7206VXR router.  
Figure 1-4  
Port Adapter Slots in the Cisco 7206VXR Router  
2
1
OKN ING  
HERNET  
FAST ET  
ETHERNET 10BT  
3
4
7
6
ETHERNET-10BFL  
FAST SERIAL  
N
E
TX  
RX  
RX  
TX  
RX  
TX  
RX  
TX  
RX  
4
3
1
0
FAST ETHERNET INPUT/OUTPUT CONTROLLER  
Cisco 7200  
Series VXR  
5
1
2
3
4
Port adapter slot 5  
Port adapter slot 6  
5
6
7
I/O controller— slot 0  
Port adapter slot 1  
Port adapter slot 3  
Port adapter slot 4  
Port adapter slot 2  
The network processing engine (not shown) is  
installed at the rear of the chassis.  
Cisco 7201 Router Slot Numbering  
Figure 1-5 shows the front view of a Cisco 7201 router with a port adapter installed. There is only one  
port adapter slot (slot 1) in a Cisco 7201 router.  
Figure 1-5  
Port Adapter Slot in the Cisco 7201 Router  
Port adapter slot  
ENABLED  
RX CELLS  
RX CARRIER  
RX ALARM  
A
T
M
Cisco  
GE 0/0  
7201  
RJ45  
EN  
LINK/A  
CTV  
CONSOLE  
SFP  
RJ45  
EN  
LINK/A  
CTV  
LINK/A  
SFP  
TX  
SFP  
CTV  
RX  
LINK/A  
CTV  
P
A
TX  
SFP  
RX  
SLO  
T
1
MNG  
MNT USE ONL  
Y
GE 0/1  
GE 0/2  
ALARM  
PW  
GE 0/3  
AU  
X
R
OK  
FE 0/0  
0
FE  
LINK  
ST  
ATUS  
COMP  
A
CT FLASH  
CF  
ACTV  
PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide  
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Chapter 1 PA-POS-1OC3 Overview  
Port Adapter Slot Locations on the Supported Platforms  
Cisco 7301 Router Slot Numbering  
Figure 1-6 shows the front view of a Cisco 7301 router with a port adapter installed. There is only one  
port adapter slot (slot 1) in a Cisco 7301 router.  
Figure 1-6  
Port Adapter Slot in the Cisco 7301 Router  
ENABLED  
RX CELLS  
RX CARRIER  
RX ALARM  
A
T
M
GIGABIT ETHERNET 0/0  
RJ45 EN  
SLO  
T
1
GIGABIT ETHERNET 0/1  
RJ45 EN  
LINK  
TX  
GBIC  
GIGABIT ETHERNET 0/2  
RJ45 EN  
RX  
LINK  
TX  
GBIC  
RX  
LINK  
AU  
X
CONSOLE  
TX  
GBIC  
RX  
10  
24V  
0-2  
=
40V  
,
2
A,  
48  
5
0/60  
=
Hz  
5A  
9A  
,
-
60  
V
CISCO 7400  
O
ALARM  
SERIES  
7411  
C
IS  
COMP  
FLASH  
C
A
C
T
ST  
A
TUS  
1
1
Slot 1  
Cisco 7304 PCI Port Adapter Carrier Card Slot Numbering  
The Cisco 7304 PCI Port Adapter Carrier Card installs in Cisco 7304 router module slots 2 through 5.  
Figure 1-7 shows a Cisco 7304 PCI Port Adapter Carrier Card with a port adapter installed. The  
Cisco 7304 PCI Port Adapter Carrier Card accepts one single-width port adapter.  
Figure 1-8 shows the module slot numbering on a Cisco 7304 router. The port adapter slot number is the  
same as the module slot number. Slot 0 and slot 1 are reserved for the NPE module or NSE module.  
Figure 1-7  
Cisco 7304 PCI Port Adapter Carrier Card—Port Adapter Installed  
7300-CC-PA  
ENABLED  
RX CELLS  
RX CARRIER  
RX ALARM  
O
IR  
ST  
A
TU  
S
A
TM  
7300  
P
A
C
ARR  
IER  
PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide  
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Chapter 1 PA-POS-1OC3 Overview  
Port Adapter Slot Locations on the Supported Platforms  
Figure 1-8  
Module Slots on the Cisco 7304 Router  
1
2
3
4
5
6
1
2
3
Slot 4  
Slot 5  
Slot 0  
4
5
6
Slot 2  
Slot 3  
Slot 1  
Cisco 7401ASR Router Slot Numbering  
Figure 1-9 shows the front view of a Cisco 7401ASR router with a port adapter installed. There is only  
one port adapter slot (slot 1) in a Cisco 7401ASR router.  
Figure 1-9  
Port Adapter Slot in the Cisco 7401ASR Router  
ENABLED  
RX CELLS  
TX  
RX CARRIER  
RX ALARM  
RX  
ENHANCED  
A
T
M
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Chapter 1 PA-POS-1OC3 Overview  
Port Adapter Slot Locations on the Supported Platforms  
Cisco 7500 Series Routers with VIP Slot Numbering  
The PA-POS-1OC3 is supported on the VIP4-50, VIP4-80, and VIP6-80 versatile interface processors  
used in Cisco 7500 series routers. In the Cisco 7505 router, the VIP motherboard is installed horizontally  
in the VIP slot. In the Cisco 7507 router and Cisco 7513 router, the VIP motherboard is installed  
vertically in the VIP slot. The port adapter can be installed in either bay (port adapter slot 0 or 1) on the  
VIP. The bays are numbered from left to right on the VIP. Figure 1-10 shows the slot numbering on a VIP.  
Figure 1-10  
VIP Slot Locations  
Port adapter slot 0  
Port adapter slot 1  
Port adapter  
handles not  
shown  
For details on the slot numbering for each individual Cisco 7500 series router, see the following  
subsections:  
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Chapter 1 PA-POS-1OC3 Overview  
Port Adapter Slot Locations on the Supported Platforms  
Cisco 7505 Router Slot Numbering  
Cisco 7505 routers have four slots for port adapters, and one slot for a Route Switch Processor (RSP).  
The slots are numbered from bottom to top. You can place the port adapters in any of the VIP interface  
slots (slot 0 through 3). One slot is always reserved for the RSP. Figure 1-11 shows the slot numbering  
on a Cisco 7505 router.  
Figure 1-11  
Cisco 7505 Router VIP Slot Locations  
CESSOR  
ITCH PRO  
ROUTE SW  
LT  
A
T
E
T
H
C
1
U
S
E
E
J
T
P
E
1
2
3
4
5
E
O
C
R
.
X
L
O
L
L
A
0
S
U
S
M
T
O
A
N
O
R
L
O
S
C
N
E
L
B
A
LE  
N
B
E
A
N
E
1
2
3
RSP  
4
5
VIP interface—slot 1  
VIP interface—slot 0  
VIP interface—slot 3  
VIP interface—slot 2  
PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide  
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Chapter 1 PA-POS-1OC3 Overview  
Port Adapter Slot Locations on the Supported Platforms  
Cisco 7507 Router Slot Numbering  
Cisco 7507 routers have five slots for port adapters, and two slots for RSPs. The slots are numbered from  
left to right. You can place the port adapters in any of the VIP interface slots (slot 0, 1, 4, 5, or 6). Slots  
2 and 3 are always reserved for RSPs. Figure 1-12 shows the slot numbering on a Cisco 7507 router.  
Figure 1-12  
Cisco 7507 Router VIP Slot Locations  
DC FAIL  
AC POWER  
ENABLE  
NORMAL  
EJECT  
SLOT  
SLOT  
1
0
I
MASTER  
SLAVE  
O
SLAVE/MASTER  
CPU HALT  
RESET  
ENABLE  
DC FAIL  
AC POWER  
AUX.  
R
H
                      2
CONSOLE  
I
O
1
2
3
4
5
6
7
1
2
3
4
VIP interface—slot 0  
VIP interface—slot 1  
RSP—slot 2  
5
6
7
VIP interface—slot 4  
VIP interface—slot 5  
VIP interface—slot 6  
RSP—slot 3  
PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide  
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Chapter 1 PA-POS-1OC3 Overview  
Port Adapter Slot Locations on the Supported Platforms  
Cisco 7513 Router Slot Numbering  
Cisco 7513 routers (Cisco 7513 or Cisco 7513-MX) have eleven slots for port adapters, and two slots for  
RSPs. The slots are numbered from left to right. You can place the port adapters in any of the VIP  
interface slots (slots 0 through 5, or slots 9 through 12). Slots 6 and 7 are always reserved for RSPs.  
Figure 1-13 shows the slot numbering on a Cisco 7513 router.  
Figure 1-13  
Cisco 7513 Router VIP Slot Locations  
M  
R
AL  
M
A
L
EN  
A
BLE  
E
JEC  
E
JEC  
T
T
SLO  
SLO  
S
SL  
O
T
LO  
T
T
1
T
0
1
0
MA  
E
S
M
E
LAV  
STE  
SL  
AV  
AS  
TER  
R
SLAVE  
S
LAV  
/M  
E/M  
AS  
A
TER  
ST  
H
ER  
CP  
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U
HALT  
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U
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LT  
RE  
RE  
SET  
SE  
E
N
T
A
BLE  
AU  
A
X.  
UX  
.
R
C
                    2
R
C
                    2
C
O
CO  
NSO  
NS  
LE  
O
LE  
AC  
OK  
FAN  
OK  
OUTP  
UT  
FAIL  
AC  
OK  
FAN  
OK  
OUTPU  
T
FAIL  
POWER  
A
POWER  
B
I
I
0
0
1
3
5
7
9
11  
13  
2
4
6
8
10  
12  
1
2
3
4
VIP interface—slot 0  
VIP interface—slot 1  
VIP interface—slot 2  
VIP interface—slot 3  
8
9
RSP—slot 7  
VIP interface—slot 8  
10 VIP interface—slot 9  
11 VIP interface—slot 10  
PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide  
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Chapter 1 PA-POS-1OC3 Overview  
Port Adapter Slot Locations on the Supported Platforms  
5
6
7
VIP interface—slot 4  
VIP interface—slot 5  
RSP—slot 6  
12 VIP interface—slot 11  
13 VIP interface—slot 12  
Cisco 7600 Series Routers with FlexWAN and Enhanced FlexWAN Modules  
The PA-POS-10C3 is supported on a FlexWAN or Enhanced FlexWAN module used in the Cisco 7603  
router, Cisco 7606 router, Cisco 7609 router, and Cisco 7613 router. The FlexWAN module can be  
installed in any slot of a Cisco 7600 series router except slot 1, which is reserved for the supervisor  
engine. Port adapters can be installed into either port adapter bay 0 or port adapter bay 1 on the FlexWAN  
module.  
For details on the slot numbering for each individual Cisco 7600 series router, see the following  
subsections:  
Cisco 7603 Router Slot Numbering  
Cisco 7603 routers have two slots for port adapters. The slots are numbered from top to bottom. You can  
place the port adapters in either of the FlexWAN module slots (slot 2 or 3). Slots 1 is always reserved  
for the supervisor engine. Figure 1-14 shows the slot numbering on a Cisco 7603 router.  
Figure 1-14  
FlexWAN and Enhanced FlexWAN Slots in the Cisco 7603 Router  
WS  
-X6  
K-S  
UP2  
-2G  
E
Switch Lo  
ad  
CON  
SOLE  
1
00%  
POR  
MOD  
T
E
1
2
3
PO  
RT  
1
CON  
SOL  
E
SUP  
PORT  
2
ERV  
ISO  
R2  
PCM  
CIA  
EJE  
CT  
1%  
OSM  
-4OC  
12  
P
OS-S  
I
4
PO  
RT  
O
C-12  
POS  
SM IR  
OSM  
-4OC  
12  
P
OS-S  
I
4
PO  
RT  
O
C-12  
POS  
SM IR  
1
2
Supervisor engine—slot 1  
FlexWAN module—slot 2  
3
FlexWAN module—slot 3  
PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide  
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Chapter 1 PA-POS-1OC3 Overview  
Port Adapter Slot Locations on the Supported Platforms  
Cisco 7606 Router Slot Numbering  
Cisco 7606 routers have five slots for port adapters. The slots are numbered from top to bottom. You can  
place the port adapters in any of the FlexWAN module slots (slots 2 through 6). Slot 1 is always reserved  
for the supervisor engine. Figure 1-15 shows the slot numbering on a Cisco 7606 router.  
Figure 1-15  
FlexWAN and Enhanced FlexWAN Slots in the Cisco 7606 Router  
WS  
-X6K  
-SU  
P2-2  
GE  
Switch  
100  
%
Lo  
ad  
CON  
POR  
MOD  
SOLE  
T
E
PO  
RT  
1
CON  
SOLE  
SUP  
ERV  
ISO  
R2  
PORT  
2
PCM  
CIA  
EJEC  
1
2
3
4
5
6
T
1%  
OSM  
-4OC  
12  
P
OS-S  
I
4
PO  
RT  
O
C-12  
POS  
SM IR  
SM IR  
SM IR  
SM IR  
SM IR  
OSM  
-4OC  
12  
P
OS-S  
I
4
PO  
RT  
O
C-12  
POS  
OSM  
-4OC  
12  
P
OS-S  
I
4
5
6
4
PO  
RT  
O
C-12  
POS  
OSM  
-4OC  
12  
P
OS-S  
I
4
PO  
RT  
O
C-12  
POS  
OSM  
-4OC  
12  
P
OS-S  
I
4
PO  
RT  
O
C-12  
POS  
1
2
3
Supervisor engine—slot 1  
FlexWAN module—slot 2  
FlexWAN module—slot 3  
4
5
6
FlexWAN module—slot 4  
FlexWAN module—slot 5  
FlexWAN module—slot 6  
Note  
Some of the slots used for the FlexWAN module on the Cisco 7606 router can also be used for other  
supervisor engines, RSPs, or OSMs. For details, refer to the Cisco 7600 Series Router Installation Guide  
at the following URL:  
80269a.html  
PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide  
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Chapter 1 PA-POS-1OC3 Overview  
Port Adapter Slot Locations on the Supported Platforms  
Cisco 7609 Router Slot Numbering  
Cisco 7609 routers have eight slots for port adapters. The slots are numbered from right to left. You can  
place the port adapters in any of the FlexWAN module slots (slots 2 through 9). Slots 1 is always reserved  
for the supervisor engine. Figure 1-16 shows the slot numbering on a Cisco 7609 router.  
Figure 1-16  
FlexWAN and Enhanced FlexWAN Slots in the Cisco 7609 Router  
FAN  
STATUS  
O
O
C
S
1
M
2
W
O
    P
-4  
S
W
O
S
C
O
W
S
O
O
0
W
S
S
-
1
C
C
I
C
-
2
M
S
S
E
I
2
S
1
T
I
C
    M
1
6
T
    P
-4  
2
M
W
6
U
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I
2
C
6
2
5
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    P
5
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-4  
W
6
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           G
M
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H
0
H
0
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0
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F
-
0
1
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    M
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S
F
-
S
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2
1
F
A
-P  
    M
-M  
B
F
M
2
M
B
M
O
M
-P  
R
W
M
R
W
I
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-M  
S
-
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M
-M  
-
M
6
2
2
4
X
M
D
6
2
2
4
D
M
L
L
C
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N
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L
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L
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O
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P
S
N
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S
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L
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T
E
D
R
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C
P
M
C
C
M
IA  
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IA  
E
J
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C
E
T
C
T
1
0
1
1
0
%
0
%
1
0
%
S
%
w
S
itc  
w
h
itc  
h
   L
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d
1
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1
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8
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8
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9
   1
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2
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2
0
2
1
2
1
P
O
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R
O
T
R
   2
T
   2
1
3
5
7
9
2
4
6
8
1
2
3
4
5
FlexWAN module—slot 9  
FlexWAN module—slot 8  
FlexWAN module—slot 7  
FlexWAN module—slot 6  
FlexWAN module—slot 5,  
6
7
8
9
FlexWAN module—slot 4  
FlexWAN module—slot 3  
FlexWAN module—slot 2  
Supervisor engine—slot 1  
Note  
Some of the slots used for the FlexWAN module on the Cisco 7609 router can also be used for other  
supervisor engines, RSPs, or OSMs. For details, refer to the Cisco 7600 Series Router Installation Guide  
at the following URL:  
PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide  
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Chapter 1 PA-POS-1OC3 Overview  
Port Adapter Slot Locations on the Supported Platforms  
Cisco 7613 Router Slot Numbering  
Cisco 7613 routers have twelve slots for port adapters. The slots are numbered from top to bottom. You  
can place the port adapters in any of the FlexWAN module slots (slots 2 through 13). Slot 1 is always  
reserved for the supervisor engine. Figure 1-17 shows the slot numbering on a Cisco 7613 router.  
Figure 1-17  
FlexWAN and Enhanced FlexWAN Slots in the Cisco 7613 Router  
WS-X6K-SUP2-2GE  
S
w
i
t
c
h
L
o
a
d
1
2
CONSOLE  
PORT  
MODE  
100%  
PORT  
1
CONSOLE  
PORT  
2
SUPERVISOR2  
PCMCIA  
EJECT  
1%  
1
WS-X6K-SUP2-2GE  
S
w
i
t
c
h
L
o
a
d
CONSOLE  
PORT  
100%  
PORT  
1
MODE  
CONSOLE  
PORT  
2
SUPERVISOR2  
PCMCIA  
EJECT  
1%  
2
OSM-40  
C12-PO  
S-MM  
1
E
3
IV  
T
T
T
T
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E
E
E
C
C
C
C
X
X
X
X
A
A
A
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R
R
R
R
X
T
IV  
IV  
IV  
I
T
T
T
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3
S
U
C
C
C
C
X
X
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R
R
R
R
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A
A
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IV  
IV  
IV  
IV  
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C
C
C
C
X
X
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IV  
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IV  
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X
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A
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2
E
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C
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IE  
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4
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1
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C
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OC12  
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L
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IE  
R
X
X
X
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OS MM  
A
A
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2
2
2
2
O
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C
C
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C
A
X
X
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T
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IE  
K
K
K
K
P
P
P
P
L
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R
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R
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K
A
R
M
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LA  
IN  
IN  
IN  
IN  
1
1
1
1
O
O
O
O
A
L
L
L
L
IN  
L
K
K
K
K
P
P
P
P
C
C
C
C
3
R
R
3
2
2
2
2
K
K
K
K
IN  
L
3
3
3
3
T
R
M
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IN  
IN  
IN  
IN  
4
4
4
4
A
A
A
A
A
L
L
L
L
O
C
C
C
C
A
P
P
P
P
L
OSM-40  
C12-PO  
A
S-MM  
1
E
E
E
3
IV  
IV  
IV  
X
T
4
S
U
X
X
X
X
T
T
T
T
T
A
T
X
T
S
R
X
R
2
R
IE  
X
4
R
R
R
T
R
M
X
IE  
R
R
T
A
R
OC12  
P
L
M
R
IE  
OS MM  
R
A
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A
L
R
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IE  
R
K
A
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IN  
L
3
T
R
4
R
IN  
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LA  
M
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A
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A
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OSM-40  
C12-PO  
S-MM  
1
3
X
T
5
S
U
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S
R
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2
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IE  
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OC12  
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IE  
OS MM  
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IN  
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5
IN  
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LA  
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C12-PO  
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S-MM  
1
3
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FABRIC  
MDL  
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9
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C12-PO  
S-MM  
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FAN  
US 12  
STAT  
12  
13  
13  
1
2
3
4
5
6
7
Supervisor engine—slot 1  
FlexWAN module—slot 2  
FlexWAN module—slot 3  
FlexWAN module—slot 4  
FlexWAN module—slot 5  
FlexWAN module—slot 6  
FlexWAN module—slot 7  
8
9
FlexWAN module—slot 8  
FlexWAN module—slot 9  
10 FlexWAN module—slot 10  
11 FlexWAN module—slot 11  
12 FlexWAN module—slot 12  
13 FlexWAN module—slot 13  
Note  
Some of the slots used for the FlexWAN module on the Cisco 7613 router can also be used for other  
supervisor engines, RSPs, or OSMs. For details, refer to the Cisco 7600 Series Router Installation Guide  
at the following URL:  
80269a.html  
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Chapter 1 PA-POS-1OC3 Overview  
Identifying Interface Addresses  
Identifying Interface Addresses  
This section describes how to identify interface addresses for the PA-POS-1OC3 in supported platforms.  
Interface addresses specify the actual physical location of each interface on a router or switch.  
Interfaces on a port adapter installed in a router maintain the same address regardless of whether other  
port adapters are installed or removed. However, when you move a port adapter to a different slot, the  
first number in the interface address changes to reflect the new port adapter slot number.  
Interfaces on a port adapter installed in a VIP or FlexWAN module maintain the same address regardless  
of whether other interface processors or modules are installed or removed. However, when you move a  
VIP or FlexWAN module to a different slot, the interface processor or module slot number changes to  
reflect the new interface processor or module slot.  
Note  
Interface ports are numbered from left to right starting with 0.  
The following subsections describe the interface address formats for the supported platforms:  
Table 1-3 summarizes the interface address formats for the supported platforms.  
Table 1-3  
Interface Addresses  
Platform  
Interface Address Format  
Numbers  
Syntax  
1/0  
Cisco 7200 VXR routers  
(7204VXR, 7206VXR)  
Port-adapter-slot-number/interface-port-number  
Port adapter slot—1 through 6  
(depends on the number of slots  
in the router)1  
Interface port—0  
1/0  
1/0  
3/0  
Cisco 7201 router  
Cisco 7301 router  
Port-adapter-slot-number/interface-port number  
Port-adapter-slot-number/interface-port number  
Port adapter slot—always 1  
Interface port—0  
Port adapter slot—always 1  
Interface port—0  
Cisco 7304 PCI port adapter Module-slot-number/interface-port-number  
carrier card in Cisco 7304  
router  
Module slot—2 through 5  
Interface port—0  
1/0  
Cisco 7401ASR router  
Port-adapter-slot-number/interface-port number  
Port adapter slot—always 1  
Interface port—0  
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Chapter 1 PA-POS-1OC3 Overview  
Identifying Interface Addresses  
Table 1-3  
Interface Addresses (continued)  
Platform  
Interface Address Format  
Numbers  
Syntax  
3/1/0  
VIPs in the Cisco 7500  
series routers (7505, 7507, slot-number/interface-port number  
7513)  
Interface-processor-slot-number/port-adapter-  
Interface processor slot—0  
through 12 (depends on the  
number of slots in the router)  
Port adapter slot—0 or 1  
Interface port—0  
3/0/0  
Cisco 7600 series routers  
(7603, 7606, 7609, 7613)  
with FlexWAN or Enhanced  
FlexWAN  
Module-slot-number/port-adapter-bay-number/  
interface-port-number  
Module slot—22 through 13  
(depends on the number of slots  
in the router)  
Port adapter bay—0 or 1  
Interface port—0  
1. Port adapter slot 0 is reserved for the Fast Ethernet port on the I/O controller (if present).  
2. Slot 1 is reserved for the supervisor engine. If a redundant supervisor engine is used, it must go in slot 2; otherwise, slot 2 can be used for other modules.  
Cisco 7200 VXR Routers Interface Addresses  
In Cisco 7200 VXR routers, port adapter slots are numbered from the lower left to the upper right,  
beginning with port adapter slot 1 and continuing through port adapter slot 4 for the Cisco 7204VXR,  
and slot 6 for the Cisco 7206VXR. Port adapters can be installed in any available port adapter slot from  
1 through 6 (depending on the number of slots in the router). (Slot 0 is reserved for the I/O controller.)  
See Figure 1-4.  
The interface address is composed of a two-part number in the format  
port-adapter-slot-number/interface-port-number. See Table 1-3. For example, if the single-port  
PA-POS-1OC3 is installed in slot 1of a Cisco 7200 series router, the interface address would be 1/0. If  
the single-port PA-POS-1OC3 were installed in slot 4, the interface address would be 4/0.  
Cisco 7201 Router Interface Addresses  
In the Cisco 7201 router, only one slot accepts port adapters and it is numbered slot 1. See Figure 1-5.  
The interface address is composed of a two-part number in the format  
port-adapter-slot-number/interface-port-number. See Table 1-3. For example, if a single-port  
PA-POS-1OC3 is installed on a Cisco 7201 router, the interface address would be 1/0.  
Cisco 7301 Router Interface Addresses  
In the Cisco 7301 router, only one slot accepts port adapters and it is numbered slot 1. See Figure 1-6.  
The interface address is composed of a two-part number in the format  
port-adapter-slot-number/interface-port-number. See Table 1-3. For example, if a single-port  
PA-POS-1OC3 is installed on a Cisco 7301 router, the interface address would be 1/0.  
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Chapter 1 PA-POS-1OC3 Overview  
Identifying Interface Addresses  
Cisco 7304 PCI Port Adapter Carrier Card Interface Addresses  
In the Cisco 7304 router, port adapters are installed in a Cisco 7304 PCI port adapter carrier card, which  
installs in Cisco 7304 router module slots 2 through 5. The port adapter slot number is the same as the  
module slot number. See Figure 1-7 and Figure 1-8.  
The interface address is composed of a two-part number in the format  
module-slot-number/interface-port-number. See Table 1-3. For example, if a single-port PA-POS-1OC3  
is installed in the Cisco 7304 PCI port adapter carrier card in Cisco 7304 router module slot 3, the  
interface address would be 3/0.  
Cisco 7401ASR Router Interface Addresses  
In the Cisco 7401ASR router, only one slot accepts port adapters and it is numbered slot 1. See  
The interface address is composed of a two-part number in the format  
port-adapter-slot-number/interface-port-number. See Table 1-3. For example, if a single-port  
PA-POS-1OC3 is installed on a Cisco 7401ASR router, the interface address would be 1/0.  
Cisco 7500 Series Routers VIP Interface Addresses  
In Cisco 7500 series routers, port adapters are installed on a versatile interface processor (VIP), which  
installs in interface processor slots 0 through 12 (depending on the number of slots in the router). The  
port adapter can be installed in either bay (port adapter slot 0 or 1) on the VIP. See Figure 1-10,  
The interface address for the VIP is composed of a three-part number in the format  
interface-processor-slot-number/port-adapter-slot-number/interface-port-number. See Table 1-3.  
The first number identifies the slot in which the VIP is installed (slot 0 through 12, depending on the  
number of slots in the router).  
The second number identifies the bay (port adapter slot) on the VIP in which the port adapter is installed  
(0 or 1). The bays are numbered from left to right on the VIP.  
The third number identifies the physical port number (interface port number) on the port adapter. The  
port numbers always begin at 0 and are numbered from left to right. The number of additional ports  
depends on the number of ports on the port adapter. The PA-POS-1OC3 is a single-port port adapter,  
therefore the port is always 0.  
For example, if a single-port PA-POS-1OC3 is installed in a VIP in interface processor slot 3, port  
adapter slot 1, the interface addresses would be 3/1/0.  
Note  
Although the processor slots in the seven-slot Cisco 7507 and the thirteen-slot Cisco 7513 chassis are  
vertically oriented and those in the five-slot Cisco 7505 are horizontally oriented, all Cisco 7500 series  
routers use the same method for slot and port numbering.  
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Identifying Interface Addresses  
Cisco 7600 Series Routers FlexWAN Module Interface Addresses  
In Cisco 7600 series routers, port adapters are installed in a FlexWAN or Enhanced FlexWAN module,  
which installs in module slots 2 through 13 (depending on the number of slots in the router). The port  
adapter can be installed in either bay (port adapter bay 0 or 1) on the FlexWAN or Enhanced FlexWAN  
The interface address is composed of a three-part number in the format  
module-slot-number/port-adapter-bay-number/interface-port-number. See Table 1-3.  
The first number identifies the module slot of the chassis in which the FlexWAN module is installed (slot  
2 through slot 3, 6, 9, or 13 depending on the number of slots in the chassis). These module slots are  
generally numbered from top to bottom, starting with 1. The Cisco 7609 is the exception with slots  
numbered right to left, starting with 1.  
The second number identifies the bay of the FlexWAN module in which the port adapter is installed  
(0 or 1). The bays are numbered from left to right on the FlexWAN module.  
The third number identifies the physical port number on the port adapter. The PA-POS-1OC3 is a  
single-port port adapter, therefore the port is always 0  
For example, if a single-port PA-POS-1OC3 is installed in the FlexWAN module, which is inserted in  
module slot 3, port adapter bay 0, then the interface address of the port adapter would be 3/0/0 (module  
slot 3, port adapter bay 0, and port 0). If the same port adapter is in port adapter bay 1 on the FlexWAN  
module, the interface addresses would be numbered 3/1/0.  
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Chapter 1 PA-POS-1OC3 Overview  
Identifying Interface Addresses  
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C H A P T E R  
2
Preparing for Installation  
This chapter describes the general equipment, safety, and site preparation requirements for installing the  
PA-POS-1OC3. This chapter contains the following sections:  
Required Tools and Equipment  
You need the following tools and parts to install the PA-POS-1OC3. If you need additional equipment,  
contact a service representative for ordering information.  
PA-POS-1OC3, or PA-POS-1OC3=  
One LC-type duplex or two LC-type simplex, multimode, or single-mode optical fiber cables to  
connect the interface with the network. (Single-mode and multimode optical fiber cables for the  
PA-POS-1OC3 are not available from Cisco Systems but are available from commercial cable  
vendors. For information about optical fiber cables, see the “OC-3 Optical Fiber Specifications”  
Phillips screwdriver (1 or 2)  
Your own electrostatic discharge (ESD)-prevention equipment or the disposable grounding wrist  
strap included with all upgrade kits, field-replaceable units (FRUs), and spares  
Antistatic mat  
Antistatic container  
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Chapter 2 Preparing for Installation  
Software and Hardware Requirements  
Software and Hardware Requirements  
Table 2-1 lists the minimum Cisco IOS software release required to use the PA-POS-1OC3 in supported  
router or switch platforms.  
Table 2-1  
PA-POS-1OC3 Software Requirements  
Platform  
Recommended Minimum Cisco IOS Release  
Cisco 7200 VXR routers  
Cisco 7204VXR and  
Cisco 7206VXR  
Cisco IOS Release 12.0 (30)S or a later release of Cisco IOS Release 12.0S  
Cisco IOS Release 12.3(10) or a later release of Cisco IOS Release 12.3  
Cisco IOS Release 12.3(13)T or a later release of Cisco IOS Release 12.3T  
Cisco IOS Release 12.2(28)SB6 or later releases of Cisco IOS Release 12.2SB  
Cisco IOS Release 12.4(4)XD7 or a later release of Cisco IOS Release 12.4XD,  
Cisco IOS Release 12.2(31)SB5 or a later release of Cisco IOS Release 12.2(31)SB5  
Cisco 7201 router  
Cisco IOS Release 12.2(31)SB2 or later releases of Cisco IOS Release 12.2SB  
Cisco IOS Release 12.2(31)SB2 or later releases of Cisco IOS Release 12.2SB  
Cisco IOS Release 12.2(31)SB3 or later releases of Cisco IOS Release 12.2SB  
Cisco 7301 router  
Cisco 7304 router  
Cisco 7401 router  
Cisco IOS Release 12.0(30)S or later releases of Cisco IOS Release 12.0S  
Cisco IOS Release 12.3(10) or later releases of Cisco IOS Release 12.3  
Cisco IOS Release 12.3(12.12)T1 or later releases of Cisco IOS Release 12.3T  
Cisco 7500 series routers  
(RSP4+, RSP8, RSP16, VIP4-50, VIP4-80,  
VIP6-80)  
Cisco IOS Release 12.2(31)SB3 or later releases of Cisco IOS Release 12.2SB  
Cisco 7600 series routers  
Note  
The PA-POS-1OC3 is considered a high-bandwidth port adapter. Traffic from multiple PA-POS-1OC3  
network interfaces could theoretically exceed the bandwidth of the CxBus or CyBus. This would cause  
packets to be dropped.  
Cisco 7200 VXR Routers  
Cisco 7200 VXR routers have certain data-carrying capacity (or bandwidth) restrictions that affect the  
number of high-bandwidth, medium-bandwidth, and low-bandwidth port adapters you can install. Refer  
to the Cisco 7200 Series Port Adapter Hardware Configuration Guidelines for more information on port  
adapter installation restrictions.  
The PA-POS-1OC3 is supported on Cisco 7200 VXR routers with network processing services engine  
NSE-1, and network processing engines NPE-400 and forward.  
For all systems in which you install the PA-POS-1OC3, use the show version command to display the  
current configuration of the router or switch, including the system software version that is currently  
loaded and running. Use the show diag slot command to view specific information about the hardware  
installed in your system.  
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Chapter 2 Preparing for Installation  
Checking Hardware and Software Compatibility  
Cisco 7201 Router  
The PA-POS-1OC3 port adapter is installed in the single port adapter slot of the Cisco 7201 router.  
Cisco 7301 Router  
The PA-POS-1OC3 port adapter is installed in the single port adapter slot of the Cisco 7301 router.  
Cisco 7401ASR Router  
The PA-POS-1OC3 port adapter is installed in the single port adapter slot of the Cisco 7401ASR router.  
Cisco 7500 Series Routers  
The PA-POS-1OC3 port adapter is supported with the RSP4+, RSP8, and RSP16, and the VIP4-50,  
VIP4-80,and VIP6-80.  
Cisco 7600 Series Routers  
The Cisco PA-POS-1OC3 port adapters can be installed on FlexWAN or Enhanced FlexWAN modules  
in slots 2 through 6 or 9. If either slot 7 or slot 8 does not have a supervisor engine in it, that slot is also  
available.  
Checking Hardware and Software Compatibility  
To check the minimum software requirements of Cisco IOS software with the hardware installed on your  
router, Cisco maintains the Software Advisor tool on Cisco.com. This tool does not verify whether  
modules within a system are compatible, but it does provide the minimum Cisco IOS requirements for  
individual hardware modules or components.  
Note  
Access to this tool is limited to users with Cisco.com login accounts.  
To access Software Advisor, click Login at Cisco.com and go to Support > Tools and Resources >  
Software Advisor. You can also access the tool by pointing your browser directly to  
Choose a product family or enter a specific product number to search for the minimum supported  
software release needed for your hardware.  
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Chapter 2 Preparing for Installation  
Safety Guidelines  
Safety Guidelines  
This section provides safety guidelines that you should follow when working with any equipment that  
connects to electrical power or telephone wiring.  
Safety Warnings  
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may  
harm you. A warning symbol precedes each warning statement.  
Warning Definition  
Warning  
IMPORTANT SAFETY INSTRUCTIONS  
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you  
work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar  
with standard practices for preventing accidents. Use the statement number provided at the end of  
each warning to locate its translation in the translated safety warnings that accompanied this  
device. Statement 1071  
SAVE THESE INSTRUCTIONS  
Waarschuwing  
BELANGRIJKE VEILIGHEIDSINSTRUCTIES  
Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan  
veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij  
elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van de standaard  
praktijken om ongelukken te voorkomen. Gebruik het nummer van de verklaring onderaan de  
waarschuwing als u een vertaling van de waarschuwing die bij het apparaat wordt geleverd, wilt  
raadplegen.  
BEWAAR DEZE INSTRUCTIES  
Varoitus  
TÄRKEITÄ TURVALLISUUSOHJEITA  
Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia vammoja. Ennen kuin  
käsittelet laitteistoa, huomioi sähköpiirien käsittelemiseen liittyvät riskit ja tutustu  
onnettomuuksien yleisiin ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen  
mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta varoitusten lopussa näkyvien  
lausuntonumeroiden avulla.  
SÄILYTÄ NÄMÄ OHJEET  
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Chapter 2 Preparing for Installation  
Safety Guidelines  
Attention  
IMPORTANTES INFORMATIONS DE SÉCURITÉ  
Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant  
entraîner des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez  
conscient des dangers liés aux circuits électriques et familiarisez-vous avec les procédures  
couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions des  
avertissements figurant dans les consignes de sécurité traduites qui accompagnent cet appareil,  
référez-vous au numéro de l'instruction situé à la fin de chaque avertissement.  
CONSERVEZ CES INFORMATIONS  
WICHTIGE SICHERHEITSHINWEISE  
Warnung  
Avvertenza  
Advarsel  
Aviso  
Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu Verletzungen führen  
kann. Machen Sie sich vor der Arbeit mit Geräten mit den Gefahren elektrischer Schaltungen und  
den üblichen Verfahren zur Vorbeugung vor Unfällen vertraut. Suchen Sie mit der am Ende jeder  
Warnung angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den übersetzten  
Sicherheitshinweisen, die zusammen mit diesem Gerät ausgeliefert wurden.  
BEWAHREN SIE DIESE HINWEISE GUT AUF.  
IMPORTANTI ISTRUZIONI SULLA SICUREZZA  
Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle  
persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli  
relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti.  
Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza per individuare le  
traduzioni delle avvertenze riportate in questo documento.  
CONSERVARE QUESTE ISTRUZIONI  
VIKTIGE SIKKERHETSINSTRUKSJONER  
Dette advarselssymbolet betyr fare. Du er i en situasjon som kan føre til skade på person. Før du  
begynner å arbeide med noe av utstyret, må du være oppmerksom på farene forbundet med  
elektriske kretser, og kjenne til standardprosedyrer for å forhindre ulykker. Bruk nummeret i slutten  
av hver advarsel for å finne oversettelsen i de oversatte sikkerhetsadvarslene som fulgte med denne  
enheten.  
TA VARE PÅ DISSE INSTRUKSJONENE  
INSTRUÇÕES IMPORTANTES DE SEGURANÇA  
Este símbolo de aviso significa perigo. Você está em uma situação que poderá ser causadora de  
lesões corporais. Antes de iniciar a utilização de qualquer equipamento, tenha conhecimento dos  
perigos envolvidos no manuseio de circuitos elétricos e familiarize-se com as práticas habituais de  
prevenção de acidentes. Utilize o número da instrução fornecido ao final de cada aviso para  
localizar sua tradução nos avisos de segurança traduzidos que acompanham este dispositivo.  
GUARDE ESTAS INSTRUÇÕES  
PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide  
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Chapter 2 Preparing for Installation  
Safety Guidelines  
¡Advertencia!  
INSTRUCCIONES IMPORTANTES DE SEGURIDAD  
Este símbolo de aviso indica peligro. Existe riesgo para su integridad física. Antes de manipular  
cualquier equipo, considere los riesgos de la corriente eléctrica y familiarícese con los  
procedimientos estándar de prevención de accidentes. Al final de cada advertencia encontrará el  
número que le ayudará a encontrar el texto traducido en el apartado de traducciones que acompaña  
a este dispositivo.  
GUARDE ESTAS INSTRUCCIONES  
VIKTIGA SÄKERHETSANVISNINGAR  
Varning!  
Denna varningssignal signalerar fara. Du befinner dig i en situation som kan leda till personskada.  
Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och  
känna till vanliga förfaranden för att förebygga olyckor. Använd det nummer som finns i slutet av  
varje varning för att hitta dess översättning i de översatta säkerhetsvarningar som medföljer denna  
anordning.  
SPARA DESSA ANVISNINGAR  
PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide  
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Chapter 2 Preparing for Installation  
Safety Guidelines  
Aviso  
INSTRUÇÕES IMPORTANTES DE SEGURANÇA  
Este símbolo de aviso significa perigo. Você se encontra em uma situação em que há risco de lesões  
corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os  
circuitos elétricos e familiarize-se com as práticas padrão de prevenção de acidentes. Use o  
número da declaração fornecido ao final de cada aviso para localizar sua tradução nos avisos de  
segurança traduzidos que acompanham o dispositivo.  
GUARDE ESTAS INSTRUÇÕES  
Advarsel  
VIGTIGE SIKKERHEDSANVISNINGER  
Dette advarselssymbol betyder fare. Du befinder dig i en situation med risiko for  
legemesbeskadigelse. Før du begynder arbejde på udstyr, skal du være opmærksom på de  
involverede risici, der er ved elektriske kredsløb, og du skal sætte dig ind i standardprocedurer til  
undgåelse af ulykker. Brug erklæringsnummeret efter hver advarsel for at finde oversættelsen i de  
oversatte advarsler, der fulgte med denne enhed.  
GEM DISSE ANVISNINGER  
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Chapter 2 Preparing for Installation  
Safety Guidelines  
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Chapter 2 Preparing for Installation  
Safety Guidelines  
Electrical Equipment Guidelines  
Follow these basic guidelines when working with any electrical equipment:  
Before beginning any procedures requiring access to the chassis interior, locate the emergency  
power-off switch for the room in which you are working.  
Disconnect all power and external cables before moving a chassis.  
Do not work alone if potentially hazardous conditions exist.  
Never assume that power has been disconnected from a circuit; always check.  
Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.  
Carefully examine your work area for possible hazards such as moist floors, ungrounded power  
extension cables, and missing safety grounds.  
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Chapter 2 Preparing for Installation  
Safety Guidelines  
Telephone Wiring Guidelines  
Use the following guidelines when working with any equipment that is connected to telephone wiring or  
to other network cabling:  
Never install telephone wiring during a lightning storm.  
Never install telephone jacks in wet locations unless the jack is specifically designed for wet  
locations.  
Never touch uninsulated telephone wires or terminals unless the telephone line has been  
disconnected at the network interface.  
Use caution when installing or modifying telephone lines.  
Preventing Electrostatic Discharge Damage  
Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are  
improperly handled, results in complete or intermittent failures. Port adapters and processor modules  
consist of printed circuit boards that are fixed in metal carriers. Electromagnetic interference (EMI)  
shielding and connectors are integral components of the carrier. Although the metal carrier helps to  
protect the board from ESD, use a preventive antistatic strap during handling.  
Following are guidelines for preventing ESD damage:  
Always use an ESD wrist or ankle strap and ensure that it makes good skin contact.  
Connect the equipment end of the strap to an unfinished chassis surface.  
When installing a component, use any available ejector levers or captive installation screws to  
properly seat the bus connectors in the backplane or midplane. These devices prevent accidental  
removal, provide proper grounding for the system, and help to ensure that bus connectors are  
properly seated.  
When removing a component, use any available ejector levers or captive installation screws to  
release the bus connectors from the backplane or midplane.  
Handle carriers by available handles or edges only; avoid touching the printed circuit boards or  
connectors.  
Place a removed component board-side-up on an antistatic surface or in a static shielding container.  
If you plan to return the component to the factory, immediately place it in a static shielding  
container.  
Avoid contact between the printed circuit boards and clothing. The wrist strap only protects  
components from ESD voltages on the body; ESD voltages on clothing can still cause damage.  
Never attempt to remove the printed circuit board from the metal carrier.  
Caution  
For safety, periodically check the resistance value of the antistatic strap. The measurement should be  
between 1 and 10 megohms (Mohms).  
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Chapter 2 Preparing for Installation  
FCC Class A Compliance  
Laser Safety  
The multimode aperture has a Class 1 laser warning label, as shown in Figure 2-1.  
Figure 2-1 Class 1 Laser Product Warning Label on the PA-POS-1OC3  
CLASS 1 LASER PRODUCT  
LASERPRODUKT DER KLASSE 1  
PRODUIT LASER DE CLASSE 1  
PRODUCTO LASER CLASE 1  
Warning  
Warning  
Class 1 laser product. Statement 1008  
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into  
beams or view directly with optical instruments. Statement 1051  
FCC Class A Compliance  
This equipment has been tested and found to comply 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 when the equipment is operated in a commercial environment. This equipment generates,  
uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the  
instruction manual, may cause harmful interference to radio communications. Operation of this  
equipment in a residential area is likely to cause harmful interference, in which case users will be  
required to correct the interference at their own expense.  
You can determine whether your equipment is causing interference by turning it off. If the interference  
stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment  
causes interference to radio or television reception, try to correct the interference by using one or more  
of the following measures:  
Turn the television or radio antenna until the interference stops.  
Move the equipment to one side or the other of the television or radio.  
Move the equipment farther away from the television or radio.  
Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is,  
make certain the equipment and the television or radio are on circuits controlled by different circuit  
breakers or fuses.)  
Caution  
PA-POS-1OC3 is designed to meet these requirements. Modifications to this product that are not  
authorized by Cisco Systems, Inc. could void the various approvals and negate your authority to operate  
the product.  
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Chapter 2 Preparing for Installation  
FCC Class A Compliance  
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C H A P T E R  
3
Removing and Installing the PA-POS-1OC3  
This chapter describes how to remove the PA-POS-1OC3 from supported platforms, how to install a new  
or replacement port adapter, and how to connect cables.  
This chapter contains the following sections:  
Before you begin installation, read the “Required Tools and Equipment” section on page 2-1 for a list of  
parts and tools required for installation.  
Handling Port Adapters  
Each port adapter circuit board is mounted to a metal carrier and is sensitive to electrostatic discharge  
(ESD) damage.  
Note  
When a port adapter slot is not in use, a blank port adapter must fill the empty slot to allow the router or  
switch to conform to electromagnetic interference (EMI) emissions requirements and to allow proper  
airflow across the port adapters. If you plan to install a new port adapter in a slot that is not in use, you  
must first remove the blank port adapter.  
Caution  
When powering off the router, wait a minimum of 30 seconds before powering it on again.  
PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide  
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Online Insertion and Removal  
Caution  
Always handle the port adapter by the carrier edges and handle; never touch the port adapter components  
or connector pins. (See Figure 3-1.)  
Figure 3-1  
Handling a Port Adapter  
Metal carrier  
Printed circuit board  
Online Insertion and Removal  
Several platforms support online insertion and removal (OIR) of port adapters; therefore, you do not  
have to power down routers when removing and replacing a PA-POS-1OC3 in the Cisco 7200 VXR  
routers, Cisco 7201 router, Cisco 7301 router, or Cisco 7401ASR router.  
For the Cisco 7304 router, you must remove the Cisco 7304 PCI port adapter carrier card before  
removing or replacing port adapters.  
For Cisco 7500 series routers, you must remove the VIP before removing and replacing port adapters.  
For Cisco 7600 series routers, you must remove the FlexWAN module before removing or replacing port  
adapters.  
It is wise to gracefully shut down the system before removing a port adapter or module that has active  
traffic moving through it. Removing a port adapter or module while traffic is flowing through the ports  
can cause system disruption. Once the port adapter or module is inserted, the ports can be brought back  
up.  
Note  
As you disengage the port adapter from the router or switch, online insertion and removal (OIR)  
administratively shuts down all active interfaces in the port adapter.  
OIR allows you to install and replace port adapters or service adapters (carrier cards, VIPs and FlexWAN  
modules) while the router is operating; you do not need to notify the software or shut down the system  
power, although you should not run traffic through the port adapter you are removing while it is being  
removed. OIR is a method that is seamless to end users on the network, maintains all routing  
information, and preserves sessions.  
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Warnings and Cautions  
OIR Functional Description  
The following is a functional description of OIR for background information only; for specific  
procedures for installing and replacing a port adapter in a supported platform, refer to the “Port Adapter  
Each port adapter has a bus connector that connects it to the router. The connector has a set of tiered pins  
in three lengths that send specific signals to the system as they make contact with the port adapter. The  
system assesses the signals it receives and the order in which it receives them to determine if a port  
adapter is being removed from or introduced to the system. From these signals, the system determines  
whether to reinitialize a new interface or to shut down a disconnected interface.  
Specifically, when you insert a port adapter, the longest pins make contact with the port adapter first, and  
the shortest pins make contact last. The system recognizes the signals and the sequence in which it  
receives them.  
When you remove or insert a port adapter, the pins send signals to notify the system of changes. The  
router then performs the following procedure:  
1. Rapidly scans the system for configuration changes.  
2. Initializes newly inserted port adapters or administratively shuts down any vacant interfaces.  
3. Brings all previously configured interfaces on the port adapter back to their previously installed  
state. Any newly inserted interface is put in the administratively shutdown state, as if it were present  
(but not configured) at boot time. If a similar port adapter type is reinserted into a slot, its ports are  
configured and brought online up to the port count of the originally installed port adapter of that  
type.  
Warnings and Cautions  
Observe all the warnings and cautions when installing or removing port adapters.  
Caution  
Do not slide a port adapter all the way into the slot until you have connected all required cables. Trying  
to do so disrupts normal operation of the router or switch.  
Caution  
If a port adapter lever or other retaining mechanism does not move to the locked position, the port  
adapter is not completely seated in the midplane. Carefully pull the port adapter halfway out of the slot,  
reinsert it, and move the port adapter lever or other mechanism to the locked position.  
Caution  
To prevent jamming the carrier between the upper and the lower edges of the port adapter slot, and to  
ensure that the edge connector at the rear of the port adapter mates with the connection at the rear of the  
port adapter slot, make certain that the carrier is positioned correctly, as shown in the “Port Adapter  
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Port Adapter Removal and Installation  
Warning  
Blank faceplates and cover panels serve three important functions: they prevent exposure to  
hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI)  
that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not  
operate the system unless all cards, faceplates, front covers, and rear covers are in place.  
Statement 1029  
Port Adapter Removal and Installation  
In this section, the illustrations that follow give step-by-step instructions on how to remove and install  
port adapters in each of the following supported platforms:  
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Port Adapter Removal and Installation  
Cisco 7200 VXR Routers—Removing and Installing a Port Adapter  
Step 1  
Port adapter lever  
To remove the port adapter, place  
the port adapter lever in the  
unlocked position. (See A.) The  
port adapter lever remains in the  
unlocked position.  
(locked position)  
N RING  
Step 2  
NET  
FAST ETHER  
ETHERNET 10BT  
Grasp the handle of the port adapter  
and pull the port adapter from the  
router, about halfway out of its slot.  
If you are removing a blank port  
adapter, pull the blank port adapter  
completely out of the chassis slot.  
A
FAST SERIAL  
FAST ETHERNET INPUT/OUTPUT CONTROLLER  
Cisco 7200  
Series  
Note: This adapter  
removal applies to any  
port or service adapter.  
Step 3  
Port adapter lever  
(unlocked position)  
With the port adapter halfway out of  
the slot, disconnect all cables from  
the port adapter. After disconnecting  
the cables, pull the port adapter  
from its chassis slot.  
Step 4  
To insert the port adapter, carefully  
align the port adapter carrier  
between the upper and the lower  
edges of the port adapter slot.  
(See B.)  
EN RING  
3
2
1
0
Slot  
NET  
FAST ETHER  
ETHERNET 10BT  
Step 5  
guide  
Carefully slide the new port adapter  
halfway into the port adapter slot.  
(See B.)  
o 7200  
Series  
B
Step 6  
With the port adapter halfway into  
the slot, connect all required cables  
to the port adapter. After connecting  
all required cables, carefully slide  
the port adapter all the way into the  
slot until the port adapter is seated  
in the router midplane.  
Step 7  
After the port adapter is properly  
seated, lock the port adapter lever.  
(See A.)  
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Port Adapter Removal and Installation  
Cisco 7201 Router—Removing and Installing a Port Adapter  
Step 1  
Use an ESD wrist strap to ground yourself to the router.  
Step 2  
To remove the port adapter, place the port adapter lever in the unlocked position. The port adapter lever  
remains in the unlocked position.  
Step 3  
Grasp the handle of the port adapter and pull the port adapter about halfway out of its slot. If you are  
removing a blank port adapter, pull the blank port adapter completely out of the chassis slot.  
Step 4  
With the port adapter halfway out of the slot, disconnect all cables from the port adapter.  
After disconnecting the cables, pull the port adapter from the chassis slot.  
Caution  
The port adapter must slide into the slot guides close to the chassis lid. Do not allow the port adapter  
components to come in contact with the system board or the port adapter could be damaged.  
R
E
S
I
Cisco  
7201  
LIN  
L
M
R
R
L
R
R
E
A
A
C
C
L
ENABLED  
X
A
X
R
X
R
RJ  
45  
EN  
K/A  
CT  
V
CO  
NS  
OLE  
SF  
P
AT  
M
RJ  
45  
EN  
LIN  
K/A  
CT  
V
RX  
LIN  
SF  
TX  
K/A  
P
CTV  
SF  
P
LIN  
K/A  
CT  
V
RX  
TX  
SF  
P
GE  
M
NG  
MN  
0/0  
T
U
SE  
ON  
L
Y
GE  
0/1  
GE  
0/2  
AL  
AR  
M
GE  
0/3  
AU  
X
PW  
R
O
K
FE  
0/0  
0
FE  
LIN  
K
ST  
A
TU  
S
CO  
MP  
AC  
T
F
LA  
SH  
CF  
AC  
TV  
Step 5  
To insert the port adapter, carefully align the port adapter carrier in the slot guides. Slide the new port  
adapter halfway into the chassis.  
Step 6  
Connect all the required cables to the port adapter. After connecting all required cables, carefully slide the  
port adapter all the way into the slot until the port adapter is seated in the midplane.  
Step 7  
After the port adapter is properly seated, lock the port adapter lever.  
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Port Adapter Removal and Installation  
Cisco 7301 Router—Removing and Installing a Port Adapter  
Step 1  
Use an ESD wrist strap to ground yourself to the router.  
Step 2  
To remove a port adapter, use a Phillips screwdriver to turn the screw holding the port adapter latch. The screw  
should be loose enough to allow the latch to rotate to an unlocked position. (See A.) The latch can rotate 360˚.  
Step 3  
Grasp the handle and pull the port adapter from the router, about halfway out of its slot. (See B.) If you are  
removing a blank port adapter, pull the blank port adapter completely out of the chassis slot.  
Step 4  
With the port adapter halfway out of the slot, diconnect all cables from the port adapter. After disconnecting  
the cables, pull the port adapter from its chassis slot.  
Caution  
The port adapter must slide into the slot guides close to the chassis lid. (See C.) Do not allow the port  
adapter components to come in contact with the system board or the port adapter could be damaged.  
GIG  
SL  
OT  
AB  
IT  
E
TH  
ER  
NE  
1
T
0
/0  
RJ4  
5
E
N
GIG  
AB  
LIN  
IT ETH  
K
ER  
NE  
R
T
0
/1  
S
IE  
X
RJ4  
TX  
5
E
N
L
M
GB  
IC  
R
L
GIG  
AB  
IT  
R
R
RX  
LIN  
E
K
E
TH  
ER  
NE  
A
A
C
L
T
0
/2  
C
ENABLED  
X
A
RJ4  
X
TX  
5
R
GB  
IC  
E
N
R
R
RX  
LIN  
A
UX  
K
CO  
NS  
OL  
TX  
E
GB  
IC  
RX  
AT  
M
100  
24V  
-24  
9
0V,  
A,  
2
A, 50  
/60  
=
Hz  
5A  
=
4
8
-
6
0V  
ALA  
C
ISC  
RM  
O
7
411  
CO  
MP  
AC  
T
FLA  
SH  
ST  
A
TU  
S
B
A
A
B
C
Step 5  
To insert the port adapter, carefully align the port adapter carrier in the slot guides. (See C.) Slide the new  
port adapter halfway into the chassis.  
Step 6  
Connect all required cables to the port adapter. After connecting all required cables, carefully slide the port  
adapter all the way into the slot until the port adapter is seated in the midplane.  
Step 7  
After the port adapter is properly seated, turn and secure the port adapter latch in the upright, locked  
position. (See A.) Tighten the screw to ensure the port adapter remains firmly in place.  
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Port Adapter Removal and Installation  
Cisco 7304 PCI Port Adapter Carrier Card—Removing and Installing a Port  
Adapter  
You can install one single-width port adapter in a Cisco 7304 PCI port adapter carrier card. This section  
provides step-by-step instructions for removing and installing a port adapter in a Cisco 7304 PCI port  
adapter carrier card.  
Caution  
Note  
When performing the following procedures, wear a grounding wrist strap to avoid ESD damage to the  
Cisco 7304 PCI port adapter carrier card.  
If the Cisco 7304 PCI port adapter carrier card is still in the router, you must remove the port adapter  
carrier card before removing a port adapter.  
To remove and install a port adapter in a Cisco 7304 PCI port adapter carrier card, refer to Figure 3-2  
and do the following:  
Step 1  
To remove the port adapter from the Cisco 7304 PCI port adapter carrier card, turn the port adapter lock  
from its locked and horizontal position shown in A of Figure 3-2 to its unlocked and vertical position  
shown in B of Figure 3-2.  
Step 2  
Step 3  
Step 4  
Ensure that the cables are disconnected from the port adapter before removing the Cisco 7304 PCI port  
adapter carrier card from the chassis.  
Grasp the handle of the port adapter and pull the port adapter from the Cisco 7304 PCI port adapter  
carrier card.  
To insert the port adapter in the Cisco 7304 PCI port adapter carrier card, locate the guide rails inside  
the Cisco 7304 PCI port adapter carrier card that hold the port adapter in place. They are at the top left  
and top right of the port adapter slot and are recessed about an inch, as shown in C of Figure 3-2.  
Step 5  
Step 6  
Carefully slide the port adapter in the Cisco 7304 PCI port adapter carrier card until the port adapter  
makes contact with the port adapter interface connector. When fully seated, the port adapter front panel  
should be flush with the face of the Cisco 7304 PCI port adapter carrier card.  
After the port adapter is properly seated, turn the port adapter lock to its locked and horizontal position,  
as shown in A of Figure 3-2.  
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Port Adapter Removal and Installation  
Figure 3-2 illustrates how to remove and install a port adapter in a Cisco 7304 PCI port adapter carrier  
card.  
Figure 3-2  
Cisco 7304 PCI Port Adapter Carrier Card—Port Adapter Removal and Installation  
A
B
7300-CC-PA  
ENABLED  
RX CELLS  
RX CARRIER  
RX ALARM  
O
IR  
S
TA  
T
US  
A
TM  
7300  
P
A
CA  
RRIER  
C
7300-CC-PA  
7300-CC  
-PA  
ENABLED  
RX CELLS  
RX CARRIER  
RX ALARM  
AT  
M
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Port Adapter Removal and Installation  
Cisco 7401ASR Router—Removing and Installing a Port Adapter  
Step 1  
To remove the port adapter, use a number 2 Phillips screwdriver to loosen the screw on the port adapter  
latch. Rotate the port adapter latch until it clears the faceplate of the port adapter. (See A.) The latch can  
rotate 360˚.  
Unlocked  
Locked  
D
R
E
S
IE  
X
L
L
R
M
B
L
R
R
E
A
A
A
N
C
L
C
E
X
A
X
X
R
T
R
R
X
R
ENHANCED  
A
TM  
A
Step 2  
Pull the port adapter from the router, about halfway out of its slot. (If you remove a blank port adapter, keep  
the blank port adapter for use in the router if you should ever remove the port adapter. The port adapter slot  
must always be filled.)  
Step 3  
With the port adapter halfway out of the slot, disconnect all cables from the port adapter. After  
disconnecting the cables, pull the port adapter completely out of the chassis slot.  
Step 4  
To insert the port adapter, locate the port adapter slot guides inside the Cisco 7401ASR router. They are  
near the top, and are recessed about 1/2 inch. (See B.)  
Caution  
The port adapter must slide into the slot guides under the chassis lid. Do not allow the port adapter  
components to come in contact with the system board, or the port adapter could be damaged.  
B
ENABLED  
RX CELLS  
TX  
RX CARRIER  
RX ALARM  
RX  
ENHANCED  
A
TM  
Step 5  
Insert the port adapter in the slot guides halfway, and then reconnect the port adapter cables.  
Step 6  
After the cables are connected, carefully slide the port adapter all the way into the slot until the port adapter  
is seated in the router midplane. When installed, the port adapter input/output panel should be flush with the  
face of the router.  
Step 7  
After the port adapter is properly seated, rotate the port adapter latch to the upright locked position and use  
a number 2 Phillips screwdriver to tighten the latch screw. If needed, loosen the latch screw to rotate the  
latch over the port adapter. Finish the installation by tightening the latch screw.  
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Port Adapter Removal and Installation  
Cisco 7500 Series Routers—Removing and Installing a Port Adapter  
Note: You must first remove the VIP  
from the chassis before removing a port  
adapter from the VIP.  
Step 1  
To remove the port adapter, remove  
the screw that secures the port  
adapter (or blank port adapter).  
A
(See A.)  
Step 2  
Screw  
With the screw removed, grasp the  
handle on the front of the port adapter  
(or blank port adapter) and carefully pull  
it out of its slot, away from the edge  
connector at the rear of the slot. (See A.)  
Step 3  
To insert the port adapter, carefully align  
the port adapter carrier between the  
upper and the lower edges of the port  
adapter slot. (See B.)  
B
Step 4  
Carrier  
Carefully slide the new port adapter into  
the port adapter slot until the connector  
on the port adapter is completely seated  
in the connector at the rear of the port  
adapter slot. (See B.)  
Upper edge  
Lower edge  
Step 5  
Captive  
installation  
screw  
Install the screw in the rear of the port  
adapter slot on the VIP. Do not  
overtighten the screw. (See A.)  
Step 6  
ROUTE SWITCH PROCESSOR  
T
L
A
T
E
T
H
C
JE  
1
U
S
E
T
LO  
P
E
C
R
.
LE  
L
X
A
O
0
S
U
S
M
T
A
N
O
R
O
L
O
Carefully slide the VIP motherboard into  
the interface processor slot until the  
connectors at the rear of the VIP are  
completely seated in the connectors at  
the rear of the interface processor slot.  
Use the ejector levers to seat the VIP in  
the interface processor slot. Tighten the  
captive installation screws on the VIP.  
(See C.)  
S
C
N
C
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Port Adapter Removal and Installation  
Cisco 7600 Series Router—Removing and Installing a Port Adapter  
Note: You must first remove the  
Enhanced FlexWAN Module from  
the chassis before removing a port  
adapter from the Enhanced  
FlexWAN Module.  
Screw  
A
Step 1  
To remove the port adapter,  
remove the screw that  
secures the port adapter (or  
blank port adapter). (See A.)  
Step 2  
With the screw removed, grasp the  
handle on the front of the  
port adapter (or blank port adapter)  
and carefully pull it out of its bay,  
away from the edge connector at  
the rear of the bay. (See A.)  
Step 3  
Slot  
guide  
To install the port adapter, carefully  
align the port adapter carrier  
between the upper and the lower  
edges of the port adapter bay.  
(See B.)  
B
Step 4  
Carefully slide the new  
port adapter into the port adapter  
bay until the connector on the  
port adapter is completely seated in  
the connector at the rear of the  
port adapter slot. (See B.)  
CONSOLE  
1%  
SUPERVISOR  
WS-X6K-SUP1  
I
PCMCIA  
EJECT  
Switch  
100%  
Load  
DTE/  
DCE  
PORT  
1
PORT  
2
2
CONSOLE  
1%  
SUPERVISOR  
WS-X6408  
I
PCMCIA  
EJECT  
Step 5  
1
1
1
2
2
2
3
3
3
4
5
5
5
6
3
4
7
8
8
8
8
PORT GIG  
ABIT ETHE  
RNET  
ERNET  
ERNET  
Install the screw in the rear of the  
port adapter bay. Do not overtighten  
the screw. (See A.)  
WS-X6408  
4
6
7
8
PORT GI  
GABIT ETH  
WS-X6408  
4
6
7
5
6
8
PORT GI  
GABIT ETH  
Step 6  
TA  
S
7
8
17  
17  
1
18  
18  
19  
19  
22  
22  
23  
23  
23  
24  
24  
24  
Reinstall the Enhanced FlexWAN  
Module in the chassis, and tighten  
the captive installation screw on each  
side of the Enhanced FlexWAN  
Module faceplate. (See C.)  
24 PORT  
1
00FX  
00FX  
00FX  
WS-X6224  
S
U
T
1
2
3
4
5
6
TA  
7
8
S
9
10  
11  
12  
13  
14  
15  
16  
20  
21  
24 PORT  
1
FAN  
LED  
WS-X6224  
S
TU  
TA  
1
2
3
4
5
S
6
7
8
9
10  
9
11  
12  
13  
14  
15  
16  
20  
21  
24 PORT  
1
C
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Connecting PA-POS-1OC3 Interface Cables  
Connecting PA-POS-1OC3 Interface Cables  
To continue your PA-POS-1OC3 installation, you must connect the interface cables. The instructions  
that follow apply to all supported platforms.  
Note  
Optical fiber cables are not available from Cisco Systems; they are available from outside commercial  
cable vendors. For more information on the cables you should use with this port adapter, see the “Cables  
Note  
We strongly recommend cleaning any optical-fiber connectors before making new connections to  
optical-fiber equipment. For more information, see the Inspection and Cleaning Procedures for  
Fiber-Optic Connections document at  
and the Compressed Air Cleaning Issues for Fiber-Optic Connections at  
To connect the cables to the PA-POS-1OC3, attach either one duplex optical fiber cable or two simplex  
optical fiber cables between the PA-POS-1OC3 interface port on your PA-POS-1OC3 and your network.  
(See Figure 3-3.)  
Make sure that the receive (RX) cable goes to the RX LC-type receptacle and transmit (TX) cable goes  
to the TX LC-type receptacle on the PA-POS-1OC3.  
Figure 3-3  
Connecting Simplex or Duplex Optical Fiber Cables to the PA-POS-1OC3  
PA-POS-1OC3  
RX  
TX  
ALARM  
RCV  
ENABLED  
POS  
0
or  
To external  
OC-3 network  
To external  
OC-3 network  
TX  
RX  
TX RX  
2 simplex  
connectors  
1 duplex  
connector  
Warning  
Warning  
Class 1 laser product. Statement 1008  
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into  
beams or view directly with optical instruments. Statement 1051  
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Replacing the SFP Optics Module  
Replacing the SFP Optics Module  
The following section describes how to remove and install the small form-factor pluggable (SFP) optics  
modules in the PA-POS-1OC3.  
Note  
The SFP optics modules used with the PA-POS-1OC3 have LC type connectors  
The SFP optics modules support online insertion and removal (OIR). However, if the port adapter is  
already installed in the router and the system is operational, we recommend that you administratively  
shut down the SFP port before installing a new SFP optics module.  
Available Cisco SFP optics modules include the following:  
POM-OC3-MM (short range, multimode fiber)  
POM-OC3-SMIR (intermediate range, single-mode fiber)  
POM-OC3-SMLR (long range, single-mode fiber)  
Handling the SFP Optics Module  
Before handling the SFP optics module, observe the following guidelines:  
SFP optics modules are static-sensitive. To prevent electrostatic discharge (ESD) damage, follow  
your normal board- and component-handling procedures.  
SFP optics modules are dust-sensitive. When storing an SFP optics module or when a fiber-optics  
cable is not plugged into the connector, always keep plugs in the SFP optical bores.  
The most common source of contaminants in the optical bores is debris picked up on the ferrules of the  
optical connectors. For information about inspecting and cleaning fiber optic connections, see the  
Inspection and Cleaning Procedures for Fiber-Optic Connections document at  
and the Compressed Air Cleaning Issues for Fiber-Optic Connections at  
Note  
We strongly recommend cleaning any optical-fiber connectors before making new connections to  
optical-fiber equipment.  
Removing the SFP Optics Module  
The following procedure describes removing the SFP optics module from a vertically or horizontally  
oriented port adapter slot.  
Warning  
Caution  
Ultimate disposal of this product should be handled according to all national laws and regulations.  
Statement 1040  
You can remove and install SFP optics modules with power on to the system; however, we strongly  
recommend that you do not remove or install an SFP optics module with optical fiber cables attached.  
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Replacing the SFP Optics Module  
To remove the SFP optics module, perform the following steps:  
Step 1  
Attach an ESD wrist strap to your wrist and to the ESD connection socket on the chassis or to a bare  
metal surface on the chassis or frame.  
Step 2  
Step 3  
Disconnect the network fiber cable from the SFP optics module connector.  
Remove the SFP optics module from the slot.  
a. Using your thumb and forefinger, grip the colored latching band on the front of the SFP optics  
module.  
b. Gently push the latching band back toward the SFP slot. You may hear a click or feel the SFP optics  
module disengage from the holding latch.  
Note  
Not all SFP optics modules have the same kind of latching mechanism.  
c. While still holding the latching band, pull the SFP optics module forward and out of the slot.  
Step 4  
Set the SFP optics module aside on an antistatic surface.  
Installing the SFP Optics Module  
Use the following procedure to install the SFP optics modules:  
Step 1  
Step 2  
Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.  
Verify that you have the correct SFP optics module for your installation.  
a. Check the part number and distance information on the SFP optics module label.  
b. If the distance information is not on the label, use the show controller pos x/y command to display  
the information after the SFP optics module is installed. See Verifying the SFP Optics Module  
Step 3  
Align the SFP optics module with the slot so that the label is facing away from the handle.  
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Replacing the SFP Optics Module  
Figure 3-4  
Inserting an SFP Optics Module  
1
1
ENABLED  
1
CLASS  
1
LASER PRODUCT  
LASERPRODUKT DER KLASSE  
PRODUIT LASER DE CLASSE  
PRODUCTO LASER CLASE  
RX  
TX  
PA-POS-1OC3  
ALARM  
POS  
0
RCV  
Step 4  
Step 5  
Holding the module at the latching band (with your thumb and forefinger), insert the SFP optics module  
into the slot on the port adapter.  
Push the module back into the slot until the latch engages. When fully inserted, only the band around the  
front of the SFP optics module is visible.  
Step 6  
Step 7  
Remove the plug from the SFP optical bores and save the plug for future use.  
Attach the network interface fiber-optics cable, as described in the “Cisco 7500 Series  
Verifying the SFP Optics Module Installation  
There are two ways that you can verify the SFP installation,  
Check the type of SFP optics module installed using the console.  
Cable the SFP optics module and check the LEDs on the front of the PA-POS-1OC3.  
Use this procedure to verify the SFP optics module installation in the PA-POS-1OC3:  
Step 1  
Step 2  
Verify the type of SFP optics module that is installed, by entering show controller pos x/y  
(example: 1/0)  
Check the text in the output to verify the type of SFP that is installed.  
NPE-400#show controller pos 1/0  
<< omitted text >>  
ipv62tag optimum fs = 0x612C6754, ipv62tagfs = 0x612C6754  
SFP is TRP-03L3I1BCS OC3 SM-IR  
Serial Number : 2014293  
Framer is PMC PM5379 S/UNI-4x155 1 0  
<< omitted text >>  
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Chapter 3 Removing and Installing the PA-POS-1OC3  
Replacing the SFP Optics Module  
Step 3  
Verify that the SFP optics module is functioning, by checking that the LINK LED is green.  
Note  
The green (LINK) LED is turned on only if the cable is connected and the link is up. The orange  
(ALARM) LED is turned on by the software if there are SONET alarms on the interface.  
Step 4  
Note  
Verify that the cabling is correct—single-mode to single-mode or multimode to multimode.  
If the wavelength of the SFP optics modules are matched, but different modes are used (multimode to  
single-mode or vise versa), the SFP optics module functions but not reliably.  
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Replacing the SFP Optics Module  
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C H A P T E R  
4
Configuring the PA-POS-1OC3  
The following instructions apply to all supported platforms. Minor differences among the  
platforms—with Cisco IOS software commands—are noted.  
This chapter contains the following sections:  
Using the EXEC Command Interpreter  
You modify the configuration of your router through the software command interpreter called the EXEC  
(also called enable mode). You must enter the privileged level of the EXEC command interpreter with  
the enable command before you can use the configure command to configure a new interface or change  
the existing configuration of an interface. The system prompts you for a password if one has been set.  
The system prompt for the privileged level ends with a pound sign (#) instead of an angle bracket (>).  
At the console terminal, use the following procedure to enter the privileged level:  
Step 1  
Step 2  
At the user-level EXEC prompt, enter the enable command. The EXEC prompts you for a  
privileged-level password.  
Router> enable  
Password:  
Enter the password (the password is case sensitive). For security purposes, the password is not displayed.  
When you enter the correct password, the system displays the privileged-level system prompt (#).  
Router#  
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Chapter 4 Configuring the PA-POS-1OC3  
Configuring the Interfaces  
To configure the new interfaces, proceed to the “Configuring the Interfaces” section on page 4-2.  
Configuring the Interfaces  
After you verify that the new PA-POS-1OC3 is installed correctly (the ENABLED LED goes on), use  
the privileged-level configure command to configure the new interfaces. Have the following information  
available:  
IP addresses, if you plan to configure the interface for IP routing  
MTU size  
Framing mode  
Transmit clock source  
Loopback modes (if testing is required)  
If you installed a new PA-POS-1OC3 or if you want to change the configuration of an existing interface,  
you must enter configuration mode to configure the new interfaces. If you replaced a PA-POS-1OC3 that  
was previously configured, the system recognizes the new interfaces and brings each of them up in their  
existing configurations.  
For a summary of the configuration options available and instructions for configuring the interfaces on  
a PA-POS-1OC3, refer to the appropriate configuration publications listed in the “Related  
You execute configuration commands from the privileged level of the EXEC command interpreter, which  
usually requires password access. (See the “Using the EXEC Command Interpreter” section on page 4-1  
for an explanation of the privileged level of the EXEC.) Contact your system administrator, if necessary,  
to obtain password access.  
On power-up, the OC-3 interface on a new PA-POS-1OC3 is shut down. To enable the interfaces, you  
must enter the no shutdown command in configuration mode. (See “Performing a Basic Configuration”  
section on page 4-6.) When the OC-3 interface is enabled (taken out of shutdown) with no additional  
arguments, the default interface configuration file parameters look like those in Table 4-1.  
Table 4-1  
PA-POS-1OC3 Configuration Default Values  
Parameter1  
Configuration Commands  
Default Value  
MTU  
mtu bytes (no mtu bytes)  
4470 bytes  
Framing  
pos framing sdh (no pos framing sdh) SONET framing  
Loopback internal  
Loopback line  
Transmit clocking source  
loop internal (no loop internal)  
loop line (no loop line)  
No internal loopback  
No line loopback  
clock source internal  
clock source line  
Loop timing  
(clock source internal)  
Cyclic redundancy checks  
crc 16  
crc 32  
crc 16  
SONET payload scrambling pos scramble-atm  
(no pos scramble-atm)  
No scrambling  
(no pos scramble-atm)  
1. These default parameters apply to the PA-POS-1OC3 in all supported platforms.  
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Chapter 4 Configuring the PA-POS-1OC3  
Configuring the Interfaces  
Shutting Down an Interface  
Before you remove an interface that you will not replace, or replace port adapters, use the shutdown  
command to shut down (disable) the interfaces to prevent anomalies when you reinstall the new or  
reconfigured interface processor. When you shut down an interface, it is designated administratively  
down in the show command displays.  
Follow these steps to shut down an interface:  
Step 1  
Step 2  
Enter the privileged level of the EXEC command interpreter (also called enable mode). (See the "Using  
the EXEC Command Interpreter" section for instructions.)  
At the privileged-level prompt, enter configuration mode and specify that the console terminal is the  
source of the configuration subcommands, as follows:  
Router# configure terminal  
Enter configuration commands, one per line. End with CNTL/Z.  
Router(config)#  
Step 3  
Shut down interfaces by entering the interface pos subcommand (followed by the interface address of  
the interface), and then enter the shutdown command.  
When you have finished, press Ctrl-Z—hold down the Control key while you press Z—or enter end or  
exit to exit the configuration mode and return to the EXEC command interpreter.  
Table 4-2 shows the shutdown command syntax for the supported platforms.  
Table 4-2  
Syntax of the shutdown Command for the Supported Platforms  
Platform  
Command  
Example  
Cisco 7200 VXR routers1  
interface, followed by the type (pos) and The example is for interface 0 on a port adapter  
slot/port (port-adapter-slot-number/  
in slot 6.  
interface-port-number)  
Router(config-if)# interface pos 6/0  
Router(config-if)# shutdown  
Ctrl-Z  
Router#  
shutdown  
Cisco 7201 router  
Cisco 7301 router  
interface, followed by the type (pos) and The example is for interface 0 on a port adapter  
slot/port (port-adapter-slot-number/  
in slot 1.  
interface-port-number)  
Router(config-if)# interface pos 1/0  
Router(config-if)# shutdown  
Ctrl-Z  
Router#  
shutdown  
interface, followed by the type (pos) and The example is for interface 0 on a port adapter  
slot/port (port-adapter-slot-number/  
in slot 1.  
interface-port-number)  
Router(config-if)# interface pos 1/0  
Router(config-if)# shutdown  
Ctrl-Z  
Router#  
shutdown  
Cisco 7304 PCI Port Adapter  
Carrier Card in a Cisco 7304  
router  
interface, followed by the type (pos) and The example is for interface 0 on a port adapter  
slot/port (module-slot-number/  
in a Cisco 7304 PCI Port Adapter Carrier Card  
in module slot 3 of a Cisco 7304 router.  
interface-port-number)  
Router(config-if)# interface pos 3/0  
Router(config-if)# shutdown  
shutdown  
Ctrl-Z  
Router#  
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Chapter 4 Configuring the PA-POS-1OC3  
Configuring the Interfaces  
Table 4-2  
Syntax of the shutdown Command for the Supported Platforms (continued)  
Platform  
Command  
Example  
Cisco 7401ASR router  
interface, followed by the type (pos) and The example is for interface 0 on a port adapter  
slot/port (port-adapter-slot-number/  
in slot 1.  
interface-port-number)  
Router(config-if)# interface pos 1/0  
Router(config-if)# shutdown  
Ctrl-Z  
Router#  
shutdown  
VIP in the Cisco 7500 series  
routers (7505, 7507, 7513)  
interface, followed by the type (pos)  
slot/port-adapter/port  
(interface-processor-slot-number/  
port-adapter-slot-number/  
interface-port-number)  
The example is for interface 0 in port adapter  
slot 1 of a VIP installed in interface processor  
slot 1.  
Router(config)# interface pos 1/1/0  
Router(config-if)# shutdown  
Ctrl-Z  
Router#  
shutdown  
Cisco 7600 series routers (7603, interface, followed by the type (pos)  
The example is for interface 0 on a port adapter  
in port adapter bay 0 of a FlexWAN module in  
module slot 3.  
7606, 7609, 7613) with  
FlexWAN or Enhanced  
FlexWAN  
module/bay/port  
(module-slot-number/port-adapter-bay-  
number/interface-port-number)  
Router# interfaces pos 3/0/0  
Router(config-if)# shutdown  
Ctrl-Z  
shutdown  
Router#  
1. For the Cisco 7206VXR router shelves in the Cisco AS5800, the interface specified in the above example would include a shelf number. For example,  
the command interface serial 5/3/0 specifies the OC-3 interface of the PA-POS-1OC3 in port adapter slot 3 of router shelf 5.  
Step 4  
Write the new configuration to NVRAM as follows:  
Router# copy running-config startup-config  
[OK]  
Router#  
The system displays an OK message when the configuration has been stored in NVRAM.  
Verify that new interfaces are now in the correct state (shut down) using the show interfaces command  
(followed by the interface type and interface address of the interface) to display the specific interface.  
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Chapter 4 Configuring the PA-POS-1OC3  
Configuring the Interfaces  
Table 4-3 provides examples of the show interfaces pos command for the supported platforms.  
Table 4-3  
Examples of the show interfaces pos Command for the Supported Platforms  
PLatform  
Command  
Example  
Cisco 7200 VXR routers1  
show interfaces pos, followed by  
slot/port (port-adapter-slot-number/  
interface-port-number)  
The example is for interface 0 on a port adapter  
in slot 6.  
Router# show interfaces pos 6/0  
Pos 6/0 is administratively down, line  
protocol is down  
[Additional display text omitted from  
this example]  
Cisco 7201 router  
show interfaces pos, followed by  
slot/port (port-adapter-slot-number/  
interface-port-number)  
The example is for interface 0 on a port adapter  
in slot 1.  
Router# show interfaces pos 1/0  
Pos 1/0 is administratively down, line  
protocol is down  
[Additional display text omitted from  
this example]  
Cisco 7301 router  
show interfaces pos, followed by  
slot/port (port-adapter-slot-number/  
interface-port-number)  
The example is for interface 0 on a port adapter  
in slot 1.  
Router# show interfaces pos 1/0  
Pos 1/0 is administratively down, line  
protocol is down  
[Additional display text omitted from  
this example]  
Cisco 7304 PCI Port Adapter  
Carrier Card in a Cisco 7304  
router  
show interfaces pos, followed by  
slot/port (module-slot-number/  
interface-port-number)  
The example is for interface 0 on a port adapter  
in a Cisco 7304 PCI Port Adapter Carrier Card  
in module slot 3 of a Cisco 7304 router.  
Router# show interfaces pos 3/0  
Pos 3/0 is administratively down, line  
protocol is down  
[Additional display text omitted from  
this example]  
Cisco 7401ASR router  
show interfaces pos, followed by  
slot/port (port-adapter-slot-number/  
interface-port-number)  
The example is for interface 0 on a port adapter  
in slot 1.  
Router# show interfaces pos 1/0  
Pos 1/0 is administratively down, line  
protocol is down  
[Additional display text omitted from  
this example]  
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Chapter 4 Configuring the PA-POS-1OC3  
Configuring the Interfaces  
Table 4-3  
Examples of the show interfaces pos Command for the Supported Platforms (continued)  
PLatform  
Command  
Example  
VIP in the Cisco 7500 series  
routers (7505, 7507, 7513)  
show interfaces pos followed by  
slot/port-adapter/port  
(interface-processor-slot-number/  
port-adapter-slot-number/  
interface-port-number)  
The example is for interface 0 in port adapter  
slot 1 of a VIP installed in interface processor  
slot 1.  
Router#show interface pos 1/1/0  
Pos 1/1/0 is administratively down, line  
protocol is down  
[Additional display text omitted from  
this example]  
Cisco 7600 series routers (7603, show interfaces pos followed by  
The example is for interface 0 on a port adapter  
in port adapter bay 0 of a FlexWAN module in  
module slot 3.  
7606, 7609, 7613) with  
FlexWAN or Enhanced  
FlexWAN  
slot/port-adapter/port  
(module-slot-number/  
port-adapter-bay-number/  
interface-port-number)  
Router# show interfaces pos 3/0/0  
Pos 3/0/0 is administratively down, line  
protocol is down  
[Additional display text omitted from  
this example]  
1. For the Cisco 7206VXR router shelves in the Cisco AS5800, the interface specified in the above example would include a shelf number. For example,  
the command show interface 5/3/0 specifies the OC-3 interface of the PA-POS-1OC3 in port adapter slot 3 of router shelf 5.  
Step 5  
Re-enable interfaces by doing the following:  
a. Repeat Step 3 to re-enable an interface. Substitute the no shutdown command for the shutdown  
command.  
b. Repeat Step 4 to write the new configuration to memory. Use the copy running-config  
startup-config command.  
c. Repeat to verify that the interfaces are in the correct state. Use the show interfaces command  
followed by the interface type and interface address of the interface.  
Performing a Basic Configuration  
Following are instructions for performing a basic configuration, which include enabling an interface  
(with the no shutdown command) and specifying IP routing. You might also need to enter other  
configuration commands, depending on the requirements for your system configuration and the  
protocols you plan to route on the interface.  
For complete descriptions of configuration commands and the configuration options available for the  
interfaces of your port adapter, refer to the appropriate software documentation.  
In the following procedure, press the Return key after each step unless otherwise noted. At any time,  
you can exit the privileged level and return to the user level by entering disable at the prompt as follows:  
Router# disable  
Router>  
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Chapter 4 Configuring the PA-POS-1OC3  
Configuring the Interfaces  
Step 1  
Step 2  
Enter configuration mode and specify that the console terminal will be the source of the configuration  
subcommands as follows:  
Router# configure terminal  
Enter configuration commands, one per line. End with CNTL/Z.  
Router(config)#  
Specify the new interface to configure by entering the interface pos command, followed by the interface  
address of the interface you plan to configure.  
Table 4-4 provides example of the interface pos subcommand for the supported platforms.  
Table 4-4  
Examples of the interface pos Subcommand for the Supported Platforms  
Platform  
Command  
Example  
Cisco 7200 VXR routers1  
interface pos, followed by slot/port  
(port-adapter-slot-number/  
interface-port-number)  
This example is for interface 0 of a  
PA-POS-1OC3 in port adapter slot 6:  
Router(config)# interface pos 6/0  
Router(config-if)#  
Cisco 7201 router  
Cisco 7301 router  
interface pos, followed by slot/port  
(port-adapter-slot-number/  
interface-port-number)  
The example is for interface o of a  
PA-POS-1OC3 in port adapter slot 1:  
Router(config)# interface pos 1/0  
Router(config-if)#  
interface pos, followed by slot/port  
(port-adapter-slot-number/  
interface-port-number)  
The example is for interface o of a  
PA-POS-1OC3 in port adapter slot 1:  
Router(config)# interface pos 1/0  
Router(config-if)#  
Cisco 7304 PCI Port Adapter  
Carrier Card in a Cisco 7304  
router  
interface pos, followed by slot/port  
(module-slot-number/  
interface-port-number)  
The example is for interface 0 on a port adapter  
in a Cisco 7304 PCI Port Adapter Carrier Card  
in module slot 3 of a Cisco 7304 router.  
Router# interface pos 3/0  
Router(config-if)#  
Cisco 7401ASR router  
interface pos, followed by slot/port  
(port-adapter-slot-number/  
interface-port-number)  
The example is for interface 0 of a  
PA-POS-1OC3 in port adapter slot 1:  
Router(config)# interface pos 1/0  
Router(config-if)#  
VIPs in the Cisco 7500 series  
routers (7505, 7507, 7513)  
interface pos, followed by  
slot/port-adapter/port  
(interface-processor-slot-number/  
port-adapter-slot-number/  
interface-port-number)  
The example is for interface 0 in port adapter  
slot 1 of a VIP installed in interface processor  
slot 1.  
Router(config)# interface pos 1/1/0  
Router(config-if)#  
Cisco 7600 series routers (7603, interface pos, followed by  
The example is for interface 0 on a port adapter  
in port adapter bay 0 of a FlexWAN module in  
module slot 3.  
7606, 7609, 7613) with  
FlexWAN or Enhanced  
FlexWAN  
slot/port-adapter/port  
(module-slot-number/  
port-adapter-bay-number/  
interface-port-number)  
Router# interface pos 3/0/0  
Router(config-if)#  
1. For the Cisco 7206VXR router shelves in the Cisco AS5800, the interface specified in the above example would include a shelf number. For example,  
the command interface pos 5/3/0 specifies the OC-3 interface of the PA-POS-1OC3 in port adapter slot 3 of router shelf 5.  
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Chapter 4 Configuring the PA-POS-1OC3  
Customizing the Configuration  
Step 3  
Step 4  
Assign an IP address and subnet mask to the interface (if IP routing is enabled on the system) by using  
the ip address configuration subcommand, as in the following example:  
Router(config-if)# ip address 10.0.0.10 255.255.255.255  
Change the shutdown state to up and enable the interface as follows:  
Router(config-if)# no shutdown  
The no shutdown command passes an enable command to the interface and causes the PA-POS-1OC3  
to configure itself based on the previous configuration commands sent.  
Step 5  
Step 6  
Add any additional configuration subcommands required to enable routing protocols and set the  
interface characteristics.  
After including all of the configuration commands to complete your configuration, press Ctrl-Z—hold  
down the Control key while you press Z—or enter end or exit to exit configuration mode and return to  
the EXEC command interpreter prompt.  
Step 7  
Write the new configuration to NVRAM as follows:  
Router# copy running-config startup-config  
[OK]  
Router#  
This completes the procedure for creating a basic configuration. To check the interface configuration  
with show commands, proceed to the “Checking the Configuration” section on page 4-12.  
Customizing the Configuration  
You can customize the default values of all configuration parameters to match your network  
environment. Use the interface subcommands in the following sections if you need to customize the  
PA-POS-1OC3 configuration:  
The interface subcommands that follow function the same regardless of the platform in which your  
PA-POS-1OC3 is installed; however, all these commands require that you first enter the interface pos  
command to select the interface that you want to configure. In all the configuration examples that follow,  
the interface address argument for the interface pos command is for a Cisco 7200 VXR router: 3/0 (port  
adapter slot 3, interface 0).  
For the appropriate interface pos command syntax to use for your particular platform, see Table 4-4 on  
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Chapter 4 Configuring the PA-POS-1OC3  
Customizing the Configuration  
Setting the MTU Size  
Note  
The default MTU size is 4470 bytes. The default value, 4470 bytes, exactly matches the maximum  
transmission unit (MTU) of the fiber distributed data interface (FDDI) and high-speed serial interface  
(HSSI) for autonomous switching.  
Step 1  
Step 2  
To set the MTU size, enter the mtu bytes command, where bytes is a value in the range of 64 to 117994.  
Router(config)# interface pos 3/0  
Router(config-if)# mtu3000  
To restore the default of 4470 bytes, enter the no mtu command.  
Router(config)# interface pos 3/0  
Router(config-if)# no mtu3000  
Configuring Framing  
The default framing setting is SONET STS-3c.  
Step 1  
Step 2  
To configure for SDH STM-1, enter the pos framing sdh command:  
Router(config)# interfacepos 3/0  
Router(config-if)# pos framing sdh  
To change back to SONET STS-3c, enter the no pos framing sdh command.  
Router(config)# interfacepos 3/0  
Router(config-if)# no pos framing sdh  
Setting the Source of the Transmit Clock  
The clocking default specifies that the PA-POS-1OC3 use the recovered receive (RX) clock to provide  
transmit (TX) clocking (called loop timing).  
Note  
If line loopback is selected, the PA-POS-1OC3 is forced into loop timing mode until the loopback is  
disengaged.  
Step 1  
To specify that the PA-POS-1OC3 generate the transmit clock internally, enter the clock source internal  
command:  
Router(config)# interfacepos 3/0  
Router(config-if)# clock source internal  
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Chapter 4 Configuring the PA-POS-1OC3  
Customizing the Configuration  
Step 2  
To restore loop timing, enter the no clock source internal command or the clock source line command.  
Router(config)# interfacepos 3/0  
Router(config-if)# no clock source internal  
Configuring Cyclic Redundancy Checks  
The cyclic redundancy check (CRC) default is for a 16-bit CRC. The CRC is an error-checking technique  
that uses a calculated numeric value to detect errors in transmitted data. The PA-POS-1OC3 also  
supports a 32-bit CRC. The sender of a data frame calculates the frame check sequence (FCS). The  
sender appends the FCS value to outgoing messages. The receiver recalculates the FCS and compares it  
to the FCS from the sender. If a difference exists, the receiver assumes that a transmission error occurred  
and sends a request to the sender to resend the frame.  
Step 1  
Step 2  
To configure an interface for a 32-bit CRC, enter the crc 32 command:  
Router(config)# interfacepos 3/0  
Router(config-if)# crc 32  
To disable the 32-bit CRC and return the interface to the default 16-bit CRC, enter the no crc 32  
command.  
Router(config)# interfacepos 3/0  
Router(config-if)# no crc 32  
Configuring SONET Payload Scrambling  
The default is for SONET payload scrambling to be disabled. SONET payload scrambling applies a  
self-synchronous scrambler (x^43+1) to the Synchronous Payload Envelope (SPE) of the OC-3 interface  
to ensure sufficient bit-transition density.  
Note  
Step 1  
Step 2  
Both ends of the connection must use the same scrambling algorithm.  
You enable SONET payload scrambling using the pos scramble-atm command. (This command has no  
keywords or arguments.)  
To enable SONET payload scrambling, use the following command sequence:  
Router(config)# interface pos 3/0  
Router(config-if)# pos scramble-atm  
Router(config-if)# no shutdown  
Router(config-if)# end  
To verify that SONET payload scrambling is enabled on an interface, enter the show startup-config  
command. If scrambling is enabled, the following line is displayed in the configuration:  
pos scramble-atm  
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Chapter 4 Configuring the PA-POS-1OC3  
Customizing the Configuration  
Step 3  
To disable SONET payload scrambling, use the no pos scramble-atm command.  
Router(config)# interface pos 3/0  
Router(config-if)# no pos scramble-atm  
Configuring APS  
The following example shows the configuration of automatic protection switching (APS) on router A  
and router B. (See Figure 4-1.) In this example, router A is configured with the working interface, and  
router B is configured with the protect interface. If the working interface on router A becomes  
unavailable, the connection will automatically switch over to the protect interface on router B.  
Figure 4-1  
Basic APS Configuration  
POS 2/0/0  
Working interface  
Router A  
E 0/0  
SONET  
network  
equipment  
POS 3/0/0  
E 0/0  
Protect interface  
Router B  
Add Drop Multiplexer (ADM)  
On router A, which contains the working interface, use the following configuration:  
Router#configure terminal  
Router(config)# interface loopback 1  
Router(config-if)# ip address 10.7.7.7 255.255.255.0  
Router(config)# interface pos 2/0/0  
Router(config-if)# aps group 1  
Router(config-if)# aps working 1  
Router(config-if)# pos ais-shut  
Router(config-if)# end  
Router#  
On router B, which contains the protect interface, use the following configuration:  
Router# configure terminal  
Router(config)# interface loopback 2  
Router(config-if)# ip address 10.7.7.6 255.255.255.0  
Router(config)# interface pos 3/0/0  
Router(config-if)# aps group 1  
Router(config-if)# aps protect 1 10.7.7.7  
Router(config-if)# pos ais-shut  
Router(config-if)# end  
Router#  
Note  
The loopback interface is used as the interconnect. The aps group command is used even when a single  
protect group is configured.  
To verify the configuration or to determine if a switchover has occurred, use the show aps command.  
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Chapter 4 Configuring the PA-POS-1OC3  
Checking the Configuration  
For more information on SONET APS, see the following documents:  
Automatic Protection Switching of Packet-over-SONET Circuits at the following URL:  
ad9.html  
Configuring Redundancy for POS/APS at the following URL:  
Checking the Configuration  
After configuring the new interface, use show commands to display the status of the new interface or all  
interfaces, and use the ping and loopback commands to check connectivity. This section includes the  
following subsections:  
For complete command descriptions and examples, refer to the publications listed in the “Related  
Using show Commands to Verify the New Interface Status  
Table 4-5 demonstrates how you can use the show commands to verify that new interfaces are configured  
and operating correctly and that the PA-POS-1OC3 appears in them correctly. Sample displays of the  
output of selected show commands appear in the sections that follow.  
Note  
The outputs that appear in this document may not match the output you receive when running these  
commands. The outputs in this document are examples only.  
Table 4-5  
Using show commands  
Command  
Function  
Example  
Router# show version  
show version or  
show hardware  
Displays system hardware configuration,  
the number of each interface type  
installed, Cisco IOS software version,  
names and sources of configuration files,  
and boot images  
Router# show diag 2  
show diag slot  
Displays types of port adapters installed  
in your system and information about a  
specific port adapter slot, interface  
processor slot, or chassis slot  
Router# show interfaces pos 1/0  
show interfaces pos  
port-adapter-slot-number/interface port  
number  
Displays status information about the pos  
interface in the Cisco 7200 VXR routers,  
Cisco 7201 router, Cisco 7301 router, or  
Cisco 7401ASR router  
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Chapter 4 Configuring the PA-POS-1OC3  
Checking the Configuration  
Table 4-5  
Using show commands (continued)  
Command  
Function  
Example  
Router# show interfaces pos 3/0  
show interfaces pos 2 or 3 or 4 or 5/  
interface-port-number  
Displays status information about the pos  
interface on a Cisco 7304 PCI Port  
Adapter Carrier Card in a Cisco 7304  
router  
Router# show interfaces pos  
3/1/0  
show interfaces pos interface-processor- Displays status information about the pos  
slot-number/port-adapter-slot-number/  
interface on a VIP in a Cisco 7500 series  
router  
interface-port-number  
Router# show interfaces pos  
3/0/0  
show interfaces pos module-slot-  
number/port-adapter-bay-number/  
interface-port-number  
Displays status information about the pos  
interface on a Cisco 7600 series router  
FlexWAN module  
Router# show controllers  
Router# show protocols  
show controllers  
Displays all the current interface  
processors and their interfaces  
show protocols  
Displays protocols configured for the  
entire system and for specific interfaces  
Router# show running-config  
Router# show startup-config  
show running-config  
show startup-config  
Displays the running configuration file  
Displays the configuration stored in  
NVRAM  
If an interface is shut down and you configured it as up, or if the displays indicate that the hardware is  
not functioning properly, ensure that the interface is properly connected and terminated. If you still have  
problems bringing up the interface, contact a service representative for assistance.  
This section includes the following subsections:  
Choose the subsection appropriate for your system. Proceed to the “Using the ping Command to Verify  
Network Connectivity” section on page 4-22 when you have finished using the show commands.  
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Chapter 4 Configuring the PA-POS-1OC3  
Checking the Configuration  
Using the show version or show hardware Commands  
Display the configuration of the system hardware, the number of each interface type installed, the  
Cisco IOS software version, the names and sources of configuration files, and the boot images using the  
show version (or show hardware) command.  
Note  
The outputs that appear in this document may not match the output you receive when running these  
commands. The outputs in this document are examples only.  
The following sections provide output of the show version command for some of the supported  
platforms:  
Cisco 7200 VXR Routers—Example Output of the show version Command  
Following is an example of the show version command from a Cisco 7206 VXR router with the  
PA-POS-1OC3 installed:  
Router# show version  
Cisco Internetwork Operating System Software  
IOS (tm) 7200 Software (C7200-JS-M), Version 12.3(10), RELEASE SOFTWARE (fc3)  
Copyright (c) 1986-2004 by cisco Systems, Inc.  
Compiled Mon 16-Aug-04 23:46 by kellythw  
Image text-base: 0x60008AF4, data-base: 0x62014000  
ROM: System Bootstrap, Version 12.3(4r)T1, RELEASE SOFTWARE (fc1)  
Router uptime is 3 minutes  
System returned to ROM by power-on  
System image file is "disk2:c7200-js-mz.123-10"  
cisco 7206VXR (NPE-G1) processor (revision A) with 491520K/32768K bytes of memory.  
Processor board ID 26813737  
SB-1 CPU at 700MHz, Implementation 1, Rev 0.2, 512KB L2 Cache  
6 slot VXR midplane, Version 2.6  
Last reset from power-on  
Bridging software.  
X.25 software, Version 3.0.0.  
SuperLAT software (copyright 1990 by Meridian Technology Corp).  
TN3270 Emulation software.  
PCI bus mb1 (Slots 1, 3 and 5) has a capacity of 600 bandwidth points.  
Current configuration on bus mb1 has a total of 0 bandwidth points. This configuration is  
within the PCI bus capacity and is supported.  
PCI bus mb2 (Slots 2, 4 and 6) has a capacity of 600 bandwidth points.  
Current configuration on bus mb2 has a total of 300 bandwidth points. This configuration  
is within the PCI bus capacity and is supported.  
Please refer to the following document "Cisco 7200 Series Port Adaptor Hardware  
Configuration Guidelines" on CCO <www.cisco.com>, for c7200 bandwidth points  
oversubscription/usage guidelines.  
3 Gigabit Ethernet/IEEE 802.3 interface(s)  
1 Packet over SONET network interface(s)  
509K bytes of non-volatile configuration memory.  
125184K bytes of ATA PCMCIA card at slot 2 (Sector size 512 bytes).  
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Chapter 4 Configuring the PA-POS-1OC3  
Checking the Configuration  
16384K bytes of Flash internal SIMM (Sector size 256K).  
Configuration register is 0x0  
Cisco 7201 Router—Example Output of the show version Command  
Following is an example of the show version command from a Cisco 7201 router:  
Router# show version  
Cisco IOS Software, 7200 Software (C7200P-ADVENTERPRISEK9-M), Version  
12.4(biffDEV.061001), INTERIM SOFTWARE Copyright (c) 1986-2006 by Cisco Systems, Inc.  
Compiled Sun 01-Oct-06 23:42 by biff  
ROM: System Bootstrap, Version 12.4(4r)XD5, RELEASE SOFTWARE (fc1)  
BOOTLDR: Cisco IOS Software, 7200 Software (C7200P-KBOOT-M), Version 12.4(TAZ3DEV.060927),  
INTERIM SOFTWARE  
c7201alpha1 uptime is 5 days, 18 hours, 32 minutes System returned to ROM by power-on  
System image file is "disk0:c7200p-adventerprisek9-mz.2006-10-01.biffdev"  
This product contains cryptographic features and is subject to United States and local  
country laws governing import, export, transfer and use. Delivery of Cisco cryptographic  
products does not imply third-party authority to import, export, distribute or use  
encryption.  
Importers, exporters, distributors and users are responsible for compliance with U.S. and  
local country laws. By using this product you agree to comply with applicable laws and  
regulations. If you are unable to comply with U.S. and local laws, return this product  
immediately.  
A summary of U.S. laws governing Cisco cryptographic products may be found at:  
If you require further assistance please contact us by sending email to [email protected].  
Cisco 7201 (c7201) processor (revision A) with 917504K/65536K bytes of memory.  
Processor board ID 2222222222222  
MPC7448 CPU at 1666Mhz, Implementation 0, Rev 2.2  
1 slot midplane, Version 2.255  
Last reset from power-on  
1 FastEthernet interface  
4 Gigabit Ethernet interfaces  
2045K bytes of NVRAM.  
62443K bytes of USB Flash usbflash0 (Read/Write)  
250880K bytes of ATA PCMCIA card at slot 0 (Sector size 512 bytes).  
65536K bytes of Flash internal SIMM (Sector size 512K).  
Configuration register is 0x2  
Cisco 7301 Router—Example Output of the show version Command  
Following is an example of the show version command from a Cisco 7301 router with the  
PA-POS-1OC3 installed:  
Router# show version  
Cisco Internetwork Operating System Software  
IOS (tm) 7301 Software (C7301-JS-M), Version 12.3(10), RELEASE SOFTWARE (fc3)  
Copyright (c) 1986-2004 by cisco Systems, Inc.  
Compiled Mon 16-Aug-04 22:00 by kellythw  
Image text-base: 0x60008AF4, data-base: 0x61F8A000  
ROM: System Bootstrap, Version 12.2(8r)B3, RELEASE SOFTWARE (fc1)  
rac3-7301 uptime is 0 minutes  
System returned to ROM by power-on  
System image file is "disk0:c7301-js-mz.123-10"  
cisco 7301 (NPE) processor (revision A) with 983040K/65536K bytes of memory.  
Processor board ID 74998962  
SB-1 CPU at 700MHz, Implementation 1, Rev 0.2, 512KB L2 Cache  
1 slot midplane, Version 2.0  
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Checking the Configuration  
Last reset from power-on  
Bridging software.  
X.25 software, Version 3.0.0.  
SuperLAT software (copyright 1990 by Meridian Technology Corp).  
TN3270 Emulation software.  
3 Gigabit Ethernet/IEEE 802.3 interface(s)  
1 Packet over SONET network interface(s)  
509K bytes of non-volatile configuration memory.  
125184K bytes of ATA PCMCIA card at slot 0 (Sector size 512 bytes).  
32768K bytes of Flash internal SIMM (Sector size 256K).  
Configuration register is 0x0  
VIP in Cisco 7500 Series Routers—Example Output of the show version Command  
Following is an example of the show version command from a Cisco 7500 series router with the  
Cisco PA-POS-1OC3 port adapter installed in a VIP:  
Router#show version  
Cisco Internetwork Operating System Software  
IOS (tm) RSP Software (RSP-PV-M), Version 12.2(613), RELEASE SOFTWARE (fc1)  
Copyright (c) 1986-2002 by cisco Systems, Inc.  
Compiled Sun 08-Dec-02 16:14 by biff  
Image text-base:0x60010B50, data-base:0x61620000  
ROM:System Bootstrap, Version 11.1(2), RELEASE SOFTWARE (fc1)  
Router uptime is 1 minute  
System returned to ROM by reload at 00:53:36 UTC Mon Dec 9 2002  
System image file is "slot0:rsp-pv-mz"  
cisco RSP8 (R7000) processor with 131072K/8216K bytes of memory.  
R7000 CPU at 250Mhz, Implementation 39, Rev 1.0, 256KB L2, 2048KB L3 Cache  
Last reset from power-on  
G.703/E1 software, Version 1.0.  
G.703/JT2 software, Version 1.0.  
X.25 software, Version 3.0.0.  
Bridging software.  
Chassis Interface.  
1 EIP controller (6 Ethernet).  
1 VIP4-50 RM5271 controller (2 POS).  
6 Ethernet/IEEE 802.3 interface(s)  
2 Packet over SONET network interface(s)  
123K bytes of non-volatile configuration memory.  
16384K bytes of Flash PCMCIA card at slot 0 (Sector size 128K).  
8192K bytes of Flash internal SIMM (Sector size 256K).  
Configuration register is 0x0  
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Chapter 4 Configuring the PA-POS-1OC3  
Checking the Configuration  
Using the show diag Command  
Display the types of port adapters installed in your system (and specific information about each) using  
the show diag slot command, where slot is the port adapter slot in a Cisco 7200 VXR router, Cisco 7201  
router, Cisco 7301 router, and Cisco 7401ASR router, the module slot in a Cisco 7304 PCI Port Adapter  
Carrier Card in a Cisco 7304 router, and the interface processor slot in Cisco 7500 series routers with a  
VIP. In the FlexWAN module, the show diag command is used without the slot designation.  
Note  
The outputs that appear in this document may not match the output you receive when running these  
commands. The outputs in this document are examples only.  
The following sections provide output of the show diag command for some of the supported platforms:  
Cisco 7200 VXR Routers—Example Output of the show diag Command  
Following is an example of the show diag command for a PA-POS-1OC3 in port adapter slot 2 of a Cisco  
7200 VXR router:  
Router# show diag 2  
Slot 2:  
single OC3 POS Port adapter, 1 port  
Port adapter is analyzed  
Port adapter insertion time 16:01:44 ago  
EEPROM contents at hardware discovery:  
Hardware Revision  
PCB Serial Number  
Part Number  
Board Revision  
RMA Test History  
RMA Number  
:1.0  
:00000000000  
:73-8220-01  
:01  
:00  
:0-0-0-0  
:00  
RMA History  
Unknown Field (type 0088):00 00 00 00  
Product Number  
:PA-POS-1OC3  
:800-21857-01  
Top Assy. Part Number  
EEPROM format version 4  
EEPROM contents (hex):  
0x00:04 FF 40 03 E3 41 01 00 C1 8B 30 30 30 30 30 30  
0x10:30 30 30 30 30 82 49 20 1C 01 42 30 31 03 00 81  
0x20:00 00 00 00 04 00 88 00 00 00 00 CB 94 50 41 2D  
0x30:50 4F 53 2D 32 4F 43 33 20 20 20 20 20 20 20 20  
0x40:20 C0 46 03 20 00 55 61 01 FF FF FF FF FF FF FF  
0x50:FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF  
0x60:FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF  
0x70:FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF  
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Chapter 4 Configuring the PA-POS-1OC3  
Checking the Configuration  
Cisco 7201 Router—Example Output of the show diag Command  
Following is an example of the show diag command from a Cisco 7201 router:  
Router# show diag 1  
Slot 1:  
Dual OC3 POS Port adapter, 2 ports  
Port adapter is analyzed  
Port adapter insertion time 00:02:19 ago  
EEPROM contents at hardware discovery:  
Hardware Revision : 1.0  
PCB Serial Number : JAE07520DYL  
Part Number : 73-8220-02  
Board Revision : A0  
RMA Test History : 00  
RMA Number : 0-0-0-0  
RMA History : 00  
Deviation Number : 0  
Product (FRU) Number : PA-POS-2OC3  
Top Assy. Part Number : 800-21857-02  
EEPROM format version 4  
EEPROM contents (hex):  
0x00: 04 FF 40 03 E3 41 01 00 C1 8B 4A 41 45 30 37 35  
0x10: 32 30 44 59 4C 82 49 20 1C 02 42 41 30 03 00 81  
0x20: 00 00 00 00 04 00 88 00 00 00 00 CB 94 50 41 2D  
0x30: 50 4F 53 2D 32 4F 43 33 20 20 20 20 20 20 20 20  
0x40: 20 C0 46 03 20 00 55 61 02 FF FF FF FF FF FF FF  
0x50: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF  
0x60: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF  
0x70: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF  
Cisco 7301 Router—Example Output of the show diag Command  
Following is an example of the show diag command for a PA-POS-1OC3 in port adapter slot 1 of a  
Cisco 7301 router:  
Router# show diag 1  
Slot 1:  
single OC3 POS Port adapter, 1 port  
Port adapter is analyzed  
Port adapter insertion time 7w2d ago  
EEPROM contents at hardware discovery:  
Hardware Revision : 1.0  
PCB Serial Number : JAE080216FB  
Part Number : 73-8220-02  
Board Revision : A0  
RMA Test History : 00  
RMA Number : 0-0-0-0  
RMA History : 00  
Deviation Number : 0  
Product (FRU) Number : PA-POS-1OC3  
Top Assy. Part Number : 800-21857-02  
EEPROM format version 4  
EEPROM contents (hex):  
0x00: 04 FF 40 03 E3 41 01 00 C1 8B 4A 41 45 30 38 30  
0x10: 32 31 36 46 42 82 49 20 1C 02 42 41 30 03 00 81  
0x20: 00 00 00 00 04 00 88 00 00 00 00 CB 94 50 41 2D  
0x30: 50 4F 53 2D 32 4F 43 33 20 20 20 20 20 20 20 20  
0x40: 20 C0 46 03 20 00 55 61 02 FF FF FF FF FF FF FF  
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Chapter 4 Configuring the PA-POS-1OC3  
Checking the Configuration  
0x50: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF  
0x60: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF  
0x70: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF  
VIP in Cisco 7500 Series Routers—Example Output of the show diag Command  
Following is an example of the show diag command that shows a PA-POS-1OC3 in port adapter slot 4  
on a VIP in interface processor slot 1:  
Router#show diag 1  
Slot 1:  
Physical slot 1, ~physical slot 0xE, logical slot 1, CBus 0  
Microcode Status 0x4  
Master Enable, LED, WCS Loaded  
Board is analyzed  
Pending I/O Status:None  
EEPROM format version 1  
VIP4-80 RM7000 controller, HW rev 2.02, board revision A0  
Serial number:18588146 Part number:73-3143-03  
Test history:0x00  
RMA number:00-00-00  
Flags:cisco 7000 board; 7500 compatible  
EEPROM contents (hex):  
0x20:01 22 02 02 01 1B A1 F2 49 0C 47 03 00 00 00 00  
0x30:50 13 33 00 00 00 00 00 00 00 00 00 00 00 00 00  
Slot database information:  
Flags:0x4  
Insertion time:0x41FCECC (6d22h ago)  
Controller Memory Size:64 MBytes CPU SDRAM, 64 MBytes Packet SDRAM  
PA Bay 0 Information:  
POS PA, 2 port, PA-POS-1OC3  
EEPROM format version 4  
HW rev 1.00, Board revision 01  
Serial number:00000000000 Part number:73-8220-01  
--Boot log begin--  
Cisco Internetwork Operating System Software  
IOS (tm) VIP Software (SVIP-DW-M), Version 12.2(613), RELEASE SOFTWARE (fc1)  
Copyright (c) 1986-2002 by cisco Systems, Inc.  
Compiled Sun 08-Dec-02 16:10 by biff  
Image text-base:0x60010930, data-base:0x604C0000  
--Boot log end--  
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Chapter 4 Configuring the PA-POS-1OC3  
Checking the Configuration  
Using the show interfaces Command  
Display status information (including the physical slot and interface address) for the interfaces you  
specifyusing the show interfaces command.  
For complete descriptions of interface subcommands and the configuration options available, refer to the  
Note  
The ouputs that appear in this document may not match the output you receive when running these  
commands. The outputs in this document are examples only.  
The following sections provide output of the show interfaces command for some of the supported  
platforms:  
Cisco 7200 VXR Series Routers—Example Output of the show interfaces Command  
Following is an example of the show interfaces pos command for a PA-POS-1OC3 in port adapter slot  
4 of a Cisco 7200 VXR router:  
Router# show interfaces pos 4/0  
PE3#sh int pos4/1  
POS4/1 is down, line protocol is down  
Hardware is Packet over Sonet  
Internet address is 142.50.8.3/24  
MTU 4470 bytes, BW 155000 Kbit, DLY 100 usec,  
reliability 255/255, txload 1/255, rxload 1/255  
Encapsulation HDLC, crc 16, loopback not set  
Keepalive not set  
Scramble disabled  
Last input never, output never, output hang never  
Last clearing of "show interface" counters 3d23h  
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0  
Queueing strategy: fifo  
Output queue: 0/40 (size/max)  
5 minute input rate 0 bits/sec, 0 packets/sec  
5 minute output rate 0 bits/sec, 0 packets/sec  
0 packets input, 0 bytes, 0 no buffer  
Received 0 broadcasts (0 IP multicast)  
0 runts, 0 giants, 0 throttles  
0 parity  
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort  
0 packets output, 0 bytes, 0 underruns  
0 output errors, 0 applique, 20 interface resets  
0 output buffer failures, 0 output buffers swapped out  
0 carrier transitions  
Note  
For the Cisco 7206 VXR router shelves in the Cisco AS5800 Universal Access Router, the show  
interfaces pos command requires a shelf number in the format show interfaces pos  
shelf-number/port-adapter-slot-number/interface-port. For example, the command show interfaces pos  
5/3/0 specifies the OC-3 interface of a PA-POS-1OC3 in port adapter slot 3 of router shelf 5.  
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Chapter 4 Configuring the PA-POS-1OC3  
Checking the Configuration  
Cisco 7201 Router—Example Output of the show interfaces Command  
Following is an example of the show interfaces command from a Cisco 7201 router:  
Router# show interfaces  
GigabitEthernet0/0 is up, line protocol is up  
Hardware is MV64460 Internal MAC, address is 0019.56c5.2adb (bia  
0019.56c5.2adb)  
Internet address is 209.165.200.225  
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,  
reliability 255/255, txload 1/255, rxload 45/255  
Encapsulation ARPA, loopback not set  
Keepalive set (10 sec)  
Full-duplex, 1000Mb/s, media type is RJ45  
output flow-control is XON, input flow-control is XON  
ARP type: ARPA, ARP Timeout 04:00:00  
Last input 00:07:03, output 00:00:07, output hang never  
Last clearing of "show interface" counters 00:00:04  
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0  
Queueing strategy: fifo  
Output queue: 0/40 (size/max)  
5 minute input rate 180240000 bits/sec, 430965 packets/sec  
5 minute output rate 0 bits/sec, 0 packets/sec  
2222975 packets input, 133378500 bytes, 0 no buffer  
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles  
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored  
0 watchdog, 0 multicast, 0 pause input  
0 input packets with dribble condition detected  
0 packets output, 0 bytes, 0 underruns  
0 output errors, 0 collisions, 0 interface resets  
0 babbles, 0 late collision, 0 deferred  
0 lost carrier, 0 no carrier, 0 pause output  
0 output buffer failures, 0 output buffers swapped out  
Cisco 7301 Router—Example Output of the show interfaces Command  
Following is an example of the show interfaces pos command for a PA-POS-1OC3 in a Cisco 7301  
router:  
Router# show interfaces  
(text omitted)  
Hardware is Packet over Sonet  
MTU 4470 bytes, BW 155000 Kbit, DLY 100 usec,  
reliability 255/255, txload 1/255, rxload 1/255  
Encapsulation HDLC, crc 16, loopback not set  
Keepalive set (10 sec)  
Scramble disabled  
Last input never, output never, output hang never  
Last clearing of "show interface" counters never  
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0  
Queueing strategy: fifo  
Output queue: 0/40 (size/max)  
5 minute input rate 0 bits/sec, 0 packets/sec  
5 minute output rate 0 bits/sec, 0 packets/sec  
0 packets input, 0 bytes, 0 no buffer  
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles  
0 parity  
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort  
0 packets output, 0 bytes, 0 underruns  
0 output errors, 0 applique, 0 interface resets  
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Chapter 4 Configuring the PA-POS-1OC3  
Checking the Configuration  
0 output buffer failures, 0 output buffers swapped out  
0 carrier transitions  
POS1/1 is administratively down, line protocol is down  
VIP in Cisco 7500 Series Routers—Example Output of the show interfaces Command  
Following is an example of the show interfaces pos command used with the VIP. In this example, the  
pos interfaces is on a port adapter in port adapter slot 1 of a VIP in interface processor slot 1. Most of  
the status information for each interface is omitted. (Interfaces are administratively shut down until you  
enable them.)  
Router#show interface pos 1/1/0  
POS1/1/1 is up, line protocol is up  
Hardware is Packet Over Sonet  
Internet address is 11.0.0.1/16  
MTU 4470 bytes, BW 155000 Kbit, DLY 100 usec,  
reliability 240/255, txload 4/255, rxload 1/255  
Encapsulation HDLC, crc 16, loopback not set  
Keepalive not set  
Scramble disabled  
Last input 00:24:38, output 02:58:40, output hang never  
Last clearing of "show interface" counters 00:00:52  
Input queue:0/75/0/0 (size/max/drops/flushes); Total output drops:0  
Queueing strategy:fifo  
Output queue:0/40 (size/max)  
5 minute input rate 366000 bits/sec, 953 packets/sec  
5 minute output rate 2977000 bits/sec, 7476 packets/sec  
100 packets input, 856 bytes, 0 no buffer  
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles  
0 parity  
8 input errors, 8 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort  
0 packets output, 0 bytes, 0 underruns  
0 output errors, 0 applique, 0 interface resets  
0 output buffer failures, 0 output buffers swapped out  
0 carrier transitions  
Using the ping Command to Verify Network Connectivity  
You can use the ping command to verify that an interface port is functioning properly. This section  
provides a brief description of this command. Refer to the publications listed in the “Related  
Documentation” section on page viii for detailed command descriptions and examples.  
The ping command sends echo request packets out to a remote device at an IP address that you specify.  
After sending an echo request, the system waits a specified time for the remote device to reply. Each  
echo reply is displayed as an exclamation point (!) on the console terminal; each request that is not  
returned before the specified timeout is displayed as a period (.). A series of exclamation points (!!!!!)  
indicates a good connection; a series of periods (.....) or the messages (timed out) or (failed) indicate a  
bad connection.  
Following is an example of a successful ping command to a remote server with the address 10.0.0.10:  
Router# ping 10.0.0.10 <Return>  
Type escape sequence to abort.  
Sending 5, 100-byte ICMP Echoes to 10.0.0.10, timeout is 2 seconds:  
!!!!!  
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/15/64 ms  
Router#  
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Chapter 4 Configuring the PA-POS-1OC3  
Checking the Configuration  
If the connection fails, verify that you have the correct IP address for the destination and that the device  
is active (powered on), and repeat the ping command.  
Using loopback Commands  
The loopback test allows you to troubleshoot, detect, and isolate equipment malfunctions by testing the  
connection between the OC-3 interface and a remote device. The loopback command places an interface  
in internal loopback (also called local loopback) or line loopback mode, which enables test packets that  
are generated from the ping command to loop through a remote device or a cable. If the packets complete  
the loop, the connection is good. If not, you can isolate a fault to the remote device or the cable in the  
path of the loopback test.  
Note  
Engaging line loopback automatically switches the interface to loop timing. The interface switches back  
to the user-specified timing source once the loopback is disengaged.  
Configuring an Interface for Internal Loopback  
The default loopback setting is for no loopback. With internal (or local) loopback, packets from the  
router are looped back in the framer. Outgoing data gets looped back to the receiver without actually  
being transmitted. Internal loopback is useful for checking that the PA-POS-1OC3 is working.  
Step 1  
Step 2  
To configure an interface for internal loopback, enter the loop internal command:  
Router(config)# interfacepos 3/0  
Router(config-if)# loop internal  
To disable internal loopback, enter the no loop internal command.  
Router(config)# interfacepos 3/0  
Router(config-if)# no loop internal  
Configuring an Interface for Line Loopback  
Note  
Engaging line loopback automatically switches the interface to loop timing. It switches back to the  
user-specified timing source when the loopback is disengaged.  
The default loopback setting is for no loopback. With line loopback, the receive (RX) fiber is logically  
connected to the transmit (TX) optical fiber cable so that packets from the remote router are looped back  
to it. Incoming data gets looped around and retransmitted to the remote end omitting the received part,  
which is of no significance.  
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Chapter 4 Configuring the PA-POS-1OC3  
Push Mode Description  
Step 1  
Step 2  
To configure an interface for line loopback, enter the loop line command:  
Router(config)# interfacepos 3/0  
Router(config-if)# loop line  
To disable line loopback, enter the no loop line command.  
Router(config)# interfacepos 3/0  
Router(config-if)# no loop line  
For more information about interface subcommands and the configuration options available for the  
supported routers, refer to the publications listed in the “Related Documentation” section on page viii.  
Push Mode Description  
If you have not been advised by Cisco to use the information in this section, do not do so.  
The PA-POS-1OC3 and PA-POS-2OC3 port adapters support a different algorithm (from that of most  
port adapters) for handling data. On the transmit side, it can either pull packets from the CPU (Pull  
mode) or push packets from the CPU to the port adapter (Push mode). The PA-POS-1OC3 and  
PA-POS-2OC3 port adapters were developed with a software architecture that deviates from the design  
of previously developed port adapters. A majority of the port adapters allow data to be pulled from the CPU  
to their interfaces. Because a few corner-case conditions exist, you may require the ability to configure  
the PA-POS-1OC3 and PA-POS-2OC3 port adapters to behave the same as the rest of the port adapter  
product family. The new CLI described in this section allows the customer to change the PA-POS-1OC3  
and PA-POS-2OC3 port adapters Push mode behavior to the standard Pull mode.  
Caution  
Note  
Only customers who have been advised by Cisco to use this CLI should do so. If you have not been  
advised by Cisco to use the dma model pull enable command, do not do so.  
Changing from Push mode to Pull mode is applicable only on a Cisco 7200 VXR router with an NPE-G1  
and PA-POS-1OC3 or PA-POS-2OC3 installed.  
Note  
We recommend changing the mode during a standard maintenance window.  
The Pull Mode is supported on Cisco IOS Release 12.4(15)T1.  
To change the TX DMA mode from the default Push mode to Pull mode, follow these steps:  
Enter the dma model pull enable command to change the Push mode to Pull mode. When the dma  
model pull enable command is executed, all the PA-POS-1OC3 and PA-POS-2OC3 port adapters  
installed are soft OIRed to reinitialize them to Pull mode.  
To change the Pull mode to Push mode, enter the no dma model pull enable command. When the  
no dma model pull enable command is executed, all the PA-POS port adapters are soft OIRed to  
reinitialize them to Push mode.  
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Chapter 4 Configuring the PA-POS-1OC3  
PA-POS-1OC3 Statistics Counters  
Caution  
On the execution of either command, all thePA-POS-1OC3 and PA-POS-2OC3 port adapters installed in  
the router will be soft OIRed.  
PA-POS-1OC3 Statistics Counters  
The PA-POS-1OC3 maintains counts of certain errors. Each error counter is 16 bits long. Errors include  
the following:  
CRC errors—Packet corrupted in reception  
Giants received—Packet length too large (greater than 16 KB)  
Runts—Packet length too small (less than or equal to 4 bytes)  
Ignores—No receive buffers available; receive buffers full  
PA-POS-1OC3 Error Messages  
The only error message you should see is of the following type and format:  
%POS-0-MSG:%DEBUGGER-0-STACK_DATA8: 00E0 FFFFFFFF 80057F50 00000000 00000000 FFFFFFFF  
80032CD4 00000000 00000000  
Contact the Cisco Technical Assistance Center (TAC) for assistance with this error message. To contact  
Making a Back-to-Back Connection  
This section provides an example of two sample configuration files from a Cisco 7200 VXR router and  
a Cisco 7301 router connected back-to-back through their OC-3 interfaces.  
First router  
interface POS 3/0 <to select port 0 of PA-POS-1OC3 in a Cisco 7200 / Cisco 7301 series  
router>  
interface POS 3/1 <to select port 1 of PA-POS-1OC3 in a Cisco 7200 / Cisco 7301 series  
router>  
ip address 10.0.0.10 255.255.255.0  
no keepalive  
clock source internal  
Second router  
interface POS 3/0 <to select port 0 of PA-POS-1OC3 in a Cisco 7200 / Cisco 7301 series  
router>  
interface POS 3/1 <to select port 1 of PA-POS-1OC3 in a Cisco 7200 / Cisco 7301 series  
router>  
ip address 10.0.0.20 255.255.255.0  
no keepalive  
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Chapter 4 Configuring the PA-POS-1OC3  
Making a Back-to-Back Connection  
Step 1  
Step 2  
To connect two PA-POS-1OC3-equipped routers back to back, attach the appropriate cable between the  
OC-3 interface port on each PA-POS-1OC3.  
By default, the PA-POS-1OC3 uses loop timing mode.  
To specify that the PA-POS-1OC3 generates the transmit clock internally, add the clock source internal  
command to your configuration (see the first router example above: clock source internal).  
Note  
For back-to-back operation, at least one of the connected OC-3 interfaces must be configured to supply  
its internal clock to the line.  
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