Table of Contents

Update to Cisco IGX 8400 Series Installation and Configuration and Reference, Release 9.3.2

February 23, 2001

This document provides updates to the following publications:

• Cisco IGX 8400 Series Installation and Configuration , Release 9.3.0
  
  
• Cisco IGX 8400 Series Reference , Release 9.3.0
  
  
• Update to the Cisco IGX 8400 Series Reference Guide , Release 9.3.1
  
  

Contents

• "Related Documentation‚"
  
  
• "About This Update‚"
  
  
• "Safety Recommendations‚"
  
  
• "Universal Router Module‚"
  
  
• "Installing the URM‚"
  
  
• "Configuring the URM‚"
  
  
• "Troubleshooting the URM‚"
  
  
• "Replacing the URM‚"
  
  
• "Features Supported on the URM‚"
  
  
• "Translated Safety Warnings‚"
  
  
• "Agency Approvals‚"
  
  
• "Emissions and Discharge‚"
  
  
• "Obtaining Documentation‚"
  
  
• "Obtaining Technical Assistance‚"
  
  

Related Documentation

The Universal Router Module (URM) is a dual-processor card, featuring both a modified Cisco IGX 8400 series UXM-E processor and a modified Cisco 3660 modular-access router processor. Each processor uses a different operating system; refer to documentation for both Cisco IOS and
Switch Software (SWSW) while working with the URM.

For information about Administration Firmware Version XAA, see the Release Notes.

All related documentation is available online, on the document CD-ROM, or you can order printed documentation. See "Obtaining Documentation" for more information.

Tip The most current version of this document is available online at the following link: http://www.cisco.com/univercd/cc/td/doc/product/wanbu/igx8400/9_3_20/ 9_3_22rn/index.html

Note   While referring to related documentation, remember that the URM can differ from the hardware and software described in the documentation listed in Table 1 and Table 2.

About This Update

This update covers aspects of the operational parameters supported in Cisco SWSW Version 9.3.20 and describes new features supported on the Cisco IGX 8400 series WAN switches, including the Cisco IGX 8410, Cisco IGX 8420, and Cisco IGX 8430.

The update provides procedures and specifications for the Universal Router Module (URM), a voice applications card for the Cisco IGX 8400 series.

Document Conventions

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boldface screen font
 

Note   Means reader take note. Notes contain helpful suggestions or references to materials not contained in this document.

TimeSaver Means the described action saves time. You can save time by performing the action described in the paragraph.

Tip Means the following information will help you solve a problem. The tips information might not be troubleshooting or even an action, but could be useful information, similar to a Timesaver.

Caution   Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.

Warning 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.
Waarschuwing	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 standaard maatregelen om ongelukken te voorkomen.
Varoitus	Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista.
Attention	Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents.
Warnung	Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt.
Avvertenza	Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti.
Advarsel	Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker.
Aviso	Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes.
¡Advertencia!	Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes.
Varning!	Denna varningssymbol 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 vanligt förfarande för att förebygga skador.

To see translations of all warnings contained in this document, see "Translated Safety Warnings".

Safety Recommendations

Any device that uses electricity must be handled carefully; follow these guidelines to ensure general safety:

• Keep the chassis area clear and dust-free during and after installation.
  
  
• Put the removed chassis cover in a safe place.
  
  
• Keep tools away from walk areas where you and others could fall over them.
  
  
• Do not wear loose clothing that could get caught in the chassis. Fasten your tie or scarf and roll up your sleeves.
  
  
• Wear safety glasses if you are working under any conditions that might be hazardous to your eyes.
  
  
• Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
  
  

Warning Ultimate disposal of this product should be handled according to all national laws and regulations. For translated warnings, see "Product Disposal Warning".

Maintaining Safety with Electricity

Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or can weld the metal object to the terminals. For translated warnings, see "Jewelry Removal Warning".

Follow these guidelines when you work on equipment powered by electricity.

• Locate the emergency power-OFF switch for the room in which you are working. Then, if an electrical accident occurs, you can act quickly to turn OFF the power.
  
  
• Before working on the system, unplug the power cord.
  
  
• Disconnect all power before doing the following:
  
  
• • Installing or removing a chassis
    
    
  • Working near power supplies
    
    

Warning  When installing the unit, the ground connection must always be made first and disconnected last. For translated warnings, see "Ground Connection Warning".

• Never assume that power is disconnected from a circuit. Always check.
  
  

Warning Read the installation instructions before you connect the system to its power source. For translated warnings, see "Installation Warning".

• Look carefully for possible hazards in your work area, such as moist floors, ungrounded power extension cables, frayed power cords, and missing safety grounds.
  
  
• If an electrical accident occurs, proceed as follows:
  
  
• • Use caution; do not become a victim yourself.
    
    
  • Turn OFF power to the system.
    
    
  • If possible, send another person to get medical aid. Otherwise, assess the condition of the victim and then call for help.
    
    
  • Determine if the person needs rescue breathing or external cardiac compressions; then take appropriate action.
    
    

Warning This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC, 10A international) is used on the phase conductors (all current-carrying conductors). For translated warnings, see "Circuit Breaker (15A) Warning".

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD damage occurs when electronic components are improperly handled and can result in complete or intermittent failures.

Always follow ESD-prevention procedures when you remove and replace components. Ensure that the chassis is electrically connected to earth ground. Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the grounding clip to an unpainted surface of the chassis frame to safely ground unwanted ESD voltages. To guard against ESD damage and shocks, the wrist strap and cord must operate properly. If no wrist strap is available, ground yourself by touching the metal part of the chassis.

Caution   For safety, periodically check the resistance value of the antistatic strap, which should be between 1 and 10 megohm (Mohm).

Universal Router Module

The Universal Router Module (URM) delivers high-density voice interfaces, Fast Ethernet connectivity and ATM switching through a combination of Cisco IOS Release 12.1(5)YA and Switch Software (SWSW) Version 9.3.20 functionality.

The URM consists of a logically-partitioned front card connected to a universal router interface (URI) back card. The front card contains an embedded UXM-E running an Administration firmware image, and an embedded router (based on the Cisco 3660 router) running a Cisco IOS image. The embedded UXM-E and the embedded router connect through a logical internal ATM interface, with capability equivalent to an OC3 ATM port.

Note   SWSW treats this interface as an OC3 ATM port, and this interface is the only port on the embedded UXM-E that is visible to SWSW.

Unlike the Cisco 3660 router, which has one slot for the motherboard and six slots for network modules, the embedded router has three virtual slots with built-in interfaces (see Table 4).

Because the URM front card contains both an embedded UXM-E and an embedded Cisco router, the front card runs two separate software images with two different download procedures. For the embedded UXM-E, the Administration firmware image (Version XAA) is downloaded and saved to the embedded UXM-E Flash memory through SWSW command-line interface (CLI) commands, which are documented in Cisco  IGX 8400 Series Installation and Configuration.

The embedded router runs Cisco IOS software. You can download and save the Cisco IOS image using standard Cisco IOS procedures as outlined in any documentation supporting
Cisco IOS Release 12.1(5)YA or later (see Cisco IOS Configuration Fundamentals Configuration Guide).

The embedded UXM-E hardware is based on the UXM-E card for the Cisco IGX series and features 16 MB asynchronous DRAM, 8 MB Flash memory, and 8 KB BRAM. The embedded router hardware is based on the Cisco 3660 modular-access router and features 8 MB boot Flash SIMM, 32 MB Cisco IOS Flash SIMM, and 128 KB NVRAM.

The back card (BC-URI-2FE2VT1 or BC-URI-2FE2VE1) contains an installed voice and WAN interface card (VWIC) with a generic dual-port T1 or E1 digital voice interface. See Figure 1 for a visual breakdown of the URM, and Table 5 for a hardware and software summary.

Figure 1: URM Hardware Configuration

The URM Front Card

To locate different LEDs on the URM front card faceplate, see Figure 2. Refer to Table 6 for a description of the LED function.

Embedded UXM-E Features

• Embedded UXM-E processor (R4650 running at 120 MHz with 32-bit memory system)
  
  
• Administration memory with 1-SIMM (16 MB asynchronous DRAM), 1-SIMM (8 MB
  Flash memory), and 8 KB BRAM
  
  
• Input cell buffering of 60 cells per VC
  
  
• Fast packet-to-cell gateway processor
  
  
• Hardware support for queuing
  
  
• Scheduling and rate adaptation
  
  
• Policing using RCMP
  
  
• Up to 941 ATM connections
  
  
• Up to 235 UBUs for full-bandwidth data applications (default value is 14)
  
  

Embedded Router Features

• Embedded Cisco IOS processor (225 MHz R5271 with 64-bit memory system running at 75 MHz with no L2 cache)
  
  
• Cisco IOS memory with 1-DIMM (128 MB SDRAM), 1-SIMM (8 MB Flash memory) for boot helper, 1-SIMM (32 MB Flash memory) for Cisco IOS image, and 128 KB NVRAM (EPROM for ROM monitor)
  
  
• Cisco IOS boot helper image to assist recovery from loss or damage to the system Cisco IOS image
  
  
• SAR processor (Conexant RS8234 running at 66 MHz with 2 MB Fast memory)
  
  
• Tandem switching of voice packets containing compressed voice
  
  
• Gatekeeper interworking (H.323, RAS V1/V2)
  
  
• Channel-associated signaling (CAS) and common channel signaling (CCS)
  
  
• Fax relay, for compressing G3 fax traffic to 9.6 kbps through the network cloud
  
  
• Support for many domestic and international signaling types
  
  
• Per-channel, automatic bandwidth upgrade for modem or fax circuits
  
  
• Local and remote loopbacks for port and circuit testing
  
  
• A single RJ-45 console port for direct Cisco IOS CLI access for serviceability (also used for initial configuration of the router module)
  
  
• Cisco IOS voice features available in Cisco IOS Release 12.1(5)YA, including switched voice, VoIP, and VoATM
  
  
• DSP549 voice processing capability
  
  
• ADPCM voice compression at 32 kbps or 24 kbps per G.726
  
  
• LDCELP voice compression at 16 kbps per G.728, on a maximum 30 channels per card
  
  
• CSACELP compression at 8 kbps on 60 channels per G.729 or 60 channels per G.729A
  
  
• Voice activity detection (VAD), which decreases trunk utilization on a connection by about 50%
  
  
• A-law or Mu-law voice encoding on a per-channel basis; for voice connections that use PCM, ADPCM, or G.729A, the URM can operate in either 24-channel mode (T1) or 30-channel mode (E1)
  
  

The URM Back Card

Caution   The URM supports only the BC-URI-2FE2VT1 and the BC-URI-2FE2VE1. Do not use other Cisco IGX back cards with the URM.

The BC-URI-2FE2VT1 and BC-URI-2FE2VE1 back cards provide T1 and E1 digital voice interfaces for the URM. BC-URI-2FE2VT1 features include:

• TwoT1 or two E1 ports capable of digital voice support
  
  
• Two10/100 Ethernet ports with ISL support
  
  
• Onboard MC68LC302 processor with 128 KB of local SRAM
  
  
• Two Rockwell/Brooktree Bt8370 T1/E1 framers with integrated LIUs
  
  
• Three LEDs per port including Carrier Detect, Alarm, and Loopback
  
  
• Onboard RJ-45 connectors with transition cable breakout to physical layer
  
  
• On-card TDM drop-and-insert capability, any time slot to any time slot between ports
  
  
• Onboard processor for signaling, FDL, and line management
  
  
• T1 CSU and DSU line build outs
  
  
• T1 SF and ESF framing
  
  
• ANSI T1.403 Annex B/V.54 loopup/down code recognition, network loopback, and user-initiated loopbacks
  
  
• BERT capability (2^6 and 2^32 patterns not supported)
  
  
• Full support for Blocker TR54016 and ANSI T1.403 loopbacks for CT1 and FT1
  
  
• E1 structured (ITU G.704) and unstructured ITU G.703) operation
  
  
• AMI, B8ZS, and HDB3 line coding
  
  

See Figure 3 to locate LEDs and interfaces on the URM back card. See Table 7 for a description of the physical ports on the back card, Table 8 for a description of the LEDs on the URI back card, and Table 9 for a description of the LEDs located on the installed VWIC.

Tip The VWIC-2MFT T1 or E1 must be installed in the appropriate BC-URI-2FE2V for the back card to function.

Different URIs are made by inserting the appropriate VWIC into the basic BC-URI-2FE2V back card. Two VWICs can be used: the VWIC-2MFT-T1 for T1 connections and the VWIC-2MFT-E1 for E1 connections.

The VWIC-2MFT is a generic dual port T1 (VWIC-2MFT-T1) or E1 (VWIC-2MFT-E1) digital voice interface in a combined voice and WAN interface card (VWIC) for voice applications. VWIC-2MFT provides the following services for T1 or E1 networks:

• Trunk interface for voice services
  
  
• TDM drop-and-insert services
  
  

At the physical layer, the VWIC provides two network interfaces through RJ-48C jacks with on-card TDM drop-and-insert capability, supported through router Cisco IOS reload operations. Because of the TDM backend, the VWIC is used as the front end for applications supporting channelized T1 and E1 services for voice.

Note   For details on the VWIC T1 and E1 cards for voice connections, see the WAN Interface Cards Hardware Installation Guide.

URM Connections

The Cisco IGX backplane is a cell bus composed of four parallel data buses that transmit up to four cells at a time. This bus bandwidth is organized into allocated units called universal bandwidth units (UBUs), each capable of transmitting 4000 cells per second or 2000 fast packets per second. The Cisco IGX has a total of 584 UBUs, giving the Cisco IGX the capacity to transmit about 2 million cells or 1 million fast packets per second.

Each URM receives a default bandwidth from the Cisco IGX at power on. You can configure this default bandwidth by using the SWSW CLI command, cnfbusbw. For more information on this and other SWSW commands, refer to the Cisco WAN Switching Command Reference .

Note   Except for slots 1 and 2 (which are reserved for the NPM), all slots in the Cisco IGX can be used to support a URM. However, the total number of UBUs allocated to all cards supported in the Cisco IGX cannot exceed the total Cisco IGX backplane bandwidth.

Connections terminating on the URM can be virtual path connections (VPC) or virtual channel connections (VCC).

The Cisco IOS router in the URM connects to Cisco IGX WAN through an internal ATM interface on the URM card. Because the URM supports voice connections using either standard VoIP or
Cisco proprietary VoATM configurations (using ATM PVCs on the internal ATM interface), the remote end of these connections is either an ATM PVC endpoint or a Frame Relay (FR) PVC endpoint.

Voice Connections on the URM

For voice applications, both the embedded UXM-E and the embedded router must be configured with WAN connections that terminate at the internal ATM port. The embedded router must also be configured with voice ports and dial-peers. The routing of a voice call from a voice port to the WAN connection depends on the destination information for each voice call (each call's routing information is described in the dial-peer configuration commands).

When a call is placed, the URM receives the call through one of the T1 or E1 ports on the URI back card, and decides where to route the call with the help of the embedded router dial-peers. ATM cells transfer from the embedded router to the Cisco IGX, then to the configured ATM PVC destination. At the destination, ATM cells travel from the Cisco IGX network into the embedded router of the destination URM. With the help of dial-peers, this destination router routes the cells to the appropriate voice port, which plays the voice into a T1/E1 channel.

Setting Up Communication in a Voice Network

When setting up a communication in a voice network using the URM, you will perform the following tasks (see "Configuring the URM" for details):

Frame Relay Connections on the URM

Note   Cisco IOS Release 12.1(5)YA does not support FRF.5/FRF.8 services for connections that originate or terminate in the embedded router.

FR connections that originate in the URM card cannot be configured to go over the internal ATM interface connecting the embedded router to the Cisco IGX WAN. Remote FR cards that support FRF.8 service interworking, such as the Cisco IGX UFM, should use FRF.8 service interwork at the FR/ATM network boundary to make end-to-end voice/data connections with the Cisco IGX URM.

The translational mode of the FRF.8 service interworking feature supports data and VoIP connections between the URM and remote FR endpoints. The transparent mode of FRF.8 service interworking allows the VoATM connections on URM to terminate in remote FR endpoints that have been configured for Voiceover Frame Relay (VoFR) operation.

End-to-end data and voice connections using VoIP are supported over both ATM trunks and fast packet trunks. See Table 14 for more information about voice and data connections supported on the URM.

URM Network Management

URM functionality is not supported by Cisco WAN Manager (CWM), CiscoWorks 2000 (CW2K) or Cisco Voice Manager (CVM); therefore, configuration information must be entered through SWSW CLI and Cisco IOS CLI. See the following network management features:

• Initial Cisco IOS configuration on the URM requires you to access the Cisco IOS CLI through the hard-wired console port on the back card.
  
  
• Initial Cisco IOS setup is configured through assignment of an IP address.
  
  
• Each installed URM has its own IP address (which also serves as an external IP address).
  
  
• IP-based protocols (Telnet, FTP, or TFTP) connect you to the Cisco IOS software; you can connect through either the internal ATM interface or the Fast Ethernet interfaces on the back card.
  
  
• The URM reports its IP address to SWSW through ILMI topology discovery onboard the embedded UXM-E.
  
  
• The embedded router is manageable through Cisco IOS CLI.
  
  
• The embedded UXM-E is manageable through the SWSW CLI.
  
  

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Note   Information regarding card, interface, and connections in the Cisco IOS domain (such as number and status of the interfaces, call and connections status, and statistics) can be accessed through the Cisco IOS CLI only.

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Installing the URM

You need the following tools and parts to install the URM:

• ESD-preventive wrist strap
  
  
• 5/32-inch Allen wrench
  
  
• Number 1 Phillips screwdriver
  
  

Tip To avoid bending any pins, install the back card first.

Installing the Back Card

Note   The VWIC must be installed for the back card to function. Before installing the back card in the Cisco IGX chassis, verify that the correct VWIC is in place.

Step 1   Attach an ESD-preventive wrist strap before handling the card. The Cisco IGX 8400 series chassis has attached wrist straps on the front and the back of the chassis.

Caution   Always follow ESD-prevention procedures when you remove and replace components. Wear an ESD-preventive wrist strap or ground yourself by periodically touching the metal part of the chassis.

Step 2   Visually inspect the BC-URI-2FE2V to verify that it is in good working order.

Step 3   Hold down the ejector levers and slide the back card into the chassis. Make sure that the ejector levers do not get caught behind the faceplate.

Step 4   Using the number 1 Phillips screwdriver, tighten the captive mounting screws on the top and bottom of the back card faceplate.

Installing the Front Card

Tip The front card must be connected to the back card for the URM to power on. If you install the front card before installing the back card, make sure that both cards are seated properly.

Step 1   Attach an ESD-preventive wrist strap before handling the card. The Cisco IGX 8400 series has attached wrist straps on the front and the back of the chassis.

Caution   Always follow ESD-prevention procedures when you remove and replace components. Wear an ESD-preventive wrist strap or ground yourself by periodically touching the metal part of the chassis.

Step 2   Using the 5/32-inch Allen wrench, open the Cisco IGX 8400 series switch door.

Step 3   Hold the card faceplate with one hand and support the card's weight with the other, then slide the card vertically into the selected slot. Hold down the ejector levers while seating the card (see Figure 4).

Caution   Always use the ejector levers when disengaging or seating a card. Failure to do so can cause erroneous system error messages, and indicate module failure.

Note   The URM automatically powers on when the card is seated. The front card faceplate LEDs will blink, indicating URM POST (see Figure 2 for LED location and description).

Step 4   Wait for the front card faceplate LEDs to finish cycling, then verify that the standby LED (STBY) is on.

Step 5   Using the number 1 Phillips screwdriver, tighten the panel fasteners at the top and bottom of the front card faceplate.

Step 6   Using the 5/32-inch Allen wrench, close the Cisco IGX 8400 series switch door.

Configuring the URM

During initial URM configuration, complete the following tasks:

For information on SWSW commands, refer to "WAN Switch Software for the URM", or to Cisco WAN Switching Command Reference .

For information on Cisco IOS commands, refer to "Cisco IOS Software for the URM", Cisco  IOS Configuration Fundamentals Configuration Guide, Cisco IOS Release 12.1, or to any Cisco IOS documentation supporting Cisco IOS Release 12.1(5)YA (see "Obtaining Documentation" for more information).

TimeSaver To limit confusion between SWSW and Cisco IOS terminal sessions, complete the embedded UXM-E configuration using SWSW before configuring the embedded router using Cisco IOS software.

Step 1   Verify that the back and front cards are properly seated by checking the front card faceplate's active (ACT) LED (see Figure 2). If the LED is on, the cards are properly seated and the URM is powered on.

Step 2   Use the SWSW dspcds command to verify that the URM is in standby.

Step 3   (optional) Use the SWSW cnfrtr command to verify the following default configuration information:

TimeSaver Use cnfrtr slot n 1 to configure both parameters at the same time.

Note   If you reconfigure the URM to load the Cisco IOS configuration from NVRAM, the router will enter the Cisco IOS setup utility.

Step 4   Use the SWSW addport command to create the internal ATM port. The addport slot.1 command activates the embedded UXM-E and powers on the embedded router.

When the embedded router powers on, the Cisco IOS image loads from the embedded router's boot Flash SIMM to the Flash SIMM. The factory-default Cisco IOS configuration loads from NPM.

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Note   By default, the URM's internal ATM interface is a UNI port with a maximum bandwidth of 353,208 calls per second (cps) (equivalent to an OC-3 ATM port); the interface cannot be configured as a NNI port.

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Note   If you have not connected a terminal to the CON port on the back card, you will not see the embedded router's initial start-up screens (see "Cisco IOS Software for the URM" for an example start-up screen).

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Step 5   (optional) Use the SWSW cnfport command to configure the internal ATM port to support ILMI.

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Note   The port does not support LMI management protocol and should be configured to support either ILMI or none. If ILMI is not configured on the internal ATM port, the embedded UXM-E does not discover the assigned IP addresses for the URM card.

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Step 6   Use the SWSW upport command to bring the internal ATM port to active state.

Step 7   Use the SWSW addcon command to configure ATM connections onto the embedded UXM-E. For more information on configuring ATM connections, see Cisco IGX 8400 Series Installation and Configuration.

TimeSaver If you want the Cisco IOS configuration to load from NVRAM in the future, use the SWSW cnfrtr slot r command at the SWSW CLI.

Step 8   Connect a dedicated console to the URM through the serial port (CON) located on the back card (see Figure 3).

Step 9   (optional) Use the Cisco IOS show version command to view information presented in the embedded router's initial start-up screens.

Router# show version

Cisco Internetwork Operating System Software 
IOS (tm) 3600 Software (URM-IS-M), Version 12.1(5)YA, EARLY DEPLOYMENT RELEASE SOFTWARE 
(fc1)
TAC Support:http://www.cisco.com/pcgi-bin/ibld/view.pl?i=support  
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Wed 24-Jan-01 12:29 by yiyan
Image text-base:0x60008960, data-base:0x6113E000
 
ROM:System Bootstrap, Version 12.1(5r)YA, RELEASE SOFTWARE (fc1)
ROM:3600 Software (URM-IS-M), Version 12.1(5)YA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
 
Router uptime is 2 minutes
System returned to ROM by power-on
System image file is "flash:urm-is-mz.121-5.YA"
 
cisco URM (R527x) processor (revision 01) with 57344K/8192K bytes of memory.
Processor board ID 
R527x CPU at 225Mhz, Implementation 40, Rev 10.0
Bridging software.
X.25 software, Version 3.0.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
Primary Rate ISDN software, Version 1.1.
 --More--         
IGX slot number 15
URM image loaded from flash (controlled by "cnfrtrparm" on IGX)
URM booting with BLANK configuration (controlled by "cnfrtr" on IGX)
Front card type:URM Main Board
Back card type:URI-2FE2V
2 FastEthernet/IEEE 802.3 interface(s)
1 ATM network interface(s)
2 Channelized T1/PRI port(s)
DRAM configuration is 64 bits wide with parity disabled.
123K bytes of non-volatile configuration memory.
32768K bytes of processor board System flash (Read/Write)
8192K bytes of processor board Boot flash (Read/Write)
 
Configuration register is 0x101
 
Router#

Step 10   (optional) To enter the Cisco IOS setup utility for basic configuration information, use the Cisco IOS setup command.

Step 11   Use the Cisco IOS command ip address in the interface configuration mode to configure an IP address onto the internal ATM interface.

TimeSaver Cisco IOS software does not automatically save configuration changes to the embedded router NVRAM. To avoid losing configuration changes, use the Cisco IOS copy run start command to save copies of your Cisco IOS running configuration to the embedded router NVRAM while you are working.

Step 12   Use an IP-based protocol (such as Telnet, FTP, or TFTP) to connect the management network with the embedded router. When connected, the embedded router reports assigned IP addresses to the embedded UXM-E through an ILMI topology discovery.

Tip Use the IP address configured on the internal ATM interface as the endpoint for a management VC between the URM and the management network.

---

Note   For ILMI to discover and display the IP address, the internal ATM interface must have a configured IP address and ILMI must be configured on the internal ATM port. The ILMI protocol does not exchange any other IP addresses with the Cisco IGX.

---

Step 13   To configure ports on the URM, use Cisco IOS CLI commands. For more information, see Cisco IOS Configuration Fundamentals Configuration Guide.

Step 14   Configure voice connections on the URM using Cisco IOS CLI and SWSW CLI commands. For more information, refer to SWSW or Cisco IOS documentation listed in "Related Documentation".

The following differences between the two operating systems can impact connection setup:

Cisco IGX allows a UNI specified range of 0 to 65535. However, the embedded router has a VCI range of 0 to 1023, so you cannot terminate connections with a VCI value greater than 1023 on the URM. The ATM PVCs configured onto the embedded router must correspond to the WAN connections configured onto the embedded UXM-E. If the two sides of a connection are inconsistent, try checking the traffic parameter values for each side to see if they are different, then redefine each value so that they are consistent.

Note   The PVC with the address vpi.vci 0.1023 on the URM internal ATM port is reserved and is not available to the user.

Step 15   Save configuration changes to the embedded router NVRAM using the Cisco IOS copy run start command.

Step 16   If you have not already done so, reconfigure the embedded router to load the Cisco IOS configuration from NVRAM in the future using the SWSW cnfrtr slot r command at the SWSW CLI.

Tip After you have configured the embedded router, set up an external TFTP server to back up your Cisco IOS configuration. Use the Cisco IOS copy nvram tftp://host address/destination file command to copy the Cisco IOS configuration to the TFTP server.

If you have trouble, see "Obtaining Technical Assistance" on page 21 for information on how to get technical assistance.

WAN Switch Software for the URM

You can use standard and superuser commands on the SWSW CLI to create voice connections on the URM (see Table 10).

Note   The Cisco IOS image stored in boot Flash is managed by SWSW; see "Managing the Boot Flash Cisco IOS Image" for more information.

Card management, port management, and connection management commands for the embedded UXM-E side of the URM are unchanged.

For details on command syntax and parameters, see Cisco WAN Switching Command Reference and Cisco WAN Switching SuperUser Command Reference . Note that the superuser commands are rarely used and many of them are only for debug purposes.

Note   Because there is no physical line connecting the embedded UXM-E to the embedded Cisco IOS router, SWSW line connections and commands are not supported on the URM. Table 10: SWSW Commands for the URM Command Description addport slot.1 Creates the internal ATM port, which activates the embedded router. dsprtrslot slot Displays router operational information on the selected slot. dsprtrslots Displays and refreshes router information for all slots in a Cisco IGX 8400 series switch. dsprtr slot Displays router configuration information on the selected slot. cnfrtr slot ios-cnfg [serial-pt-cnfg] Configures the router Cisco IOS configuration source on the selected slot and sets the serial port function. cnfrtrparm slot parm-index parm-value Configures the router service-level configuration on the selected slot. rstrtr slot Resets the embedded router without requiring a reset or restart on the selected slot.

The addport command activates the internal ATM port on the embedded UXM-E.

The dsprtrslot command displays a snapshot of the router operational information on a slot. Displayed information includes: router state, Cisco IOS alarm status, VIC type, and Cisco IOS software image.

TimeSaver To quickly display Cisco IOS software image information and VIC type for a specific slot, use the dsprtrslot slot command (see Example 2).

igx1           TN    Cisco           IGX 8420  9.3.2G    Oct. 9 2000  09:47 PDT

 
Router Slot 15 Operational Info

 
  Card Type      :  URM

  Router State   :  Ios

  IOS Status Alrm:  Ok

  IOS SW Image   :  URM-IS-M 12.1(20000905:234634)

  VIC Type       :  VIC-2T1

 
 
 
Last Command: dsprtrslot 15

 
 
Next Command: 

The dsprtrslots command displays and refreshes router information for all slots in a Cisco IGX 8400 series switch. Information displayed includes:

• slot number
  
  
• card type
  
  
• VIC type
  
  
• router alarm status
  
  

igx1           TN    Cisco           IGX 8420  9.3.2G    Oct. 9 2000  09:53 PDT
 
                           R O U T E R   S L O T S
 
   Card VIC          Router                 Card VIC          Router
   Type Type         Status                 Type Type         Status
 1 No router in NPM                       9 --   --           --
 2 No router in NPM                      10 --   --           --
 3 --   --           --                  11 --   --           --
 4 --   --           --                  12 --   --           --
 5 --   --           --                  13 URM  VIC-2E1      Ok
 6 --   --           --                  14 --   --           --
 7 --   --           --                  15 URM  VIC-2T1      Ok
 8 --   --           --                  16 --   --           --
 
 
 
Last Command: dsprtrslots
 
 
Next Command: 

The dsprtr command displays a current snapshot of the router configuration for the selected slot. Information displayed includes Cisco IOS configuration source, and router serial port function.

TimeSaver Try using dsprtr slot to quickly display Cisco IOS configuration source information and router serial port function information on a specific slot. See Example 4.

igx1           TN    Cisco           IGX 8420  9.3.2G    Oct. 9 2000  10:02 PDT
 
Configuration for Router Slot 15:                                    Snapshot
    IOS Configuration:       from router NVRAM
    Router Serial Port:      CON
 
 
 
 
Last Command: dsprtr 15
 
 
Next Command:

The cnfrtr command lets you configure the embedded router Cisco IOS configuration source on a logically active or standby slot. This command can also be used to specify the router serial port function.

Syntax: cnfrtr slot ios-cnfg [serial-pt-cnfg]

• Use cnfrtr slot {nPM | router NVRAM} to configure how a slot loads the Cisco IOS configuration.
  
  
• Use cnfrtr slot {1 CON | 2 AUX} to configure how the router serial port will function.
  
  

For example:

• The cnfrtr 12 r 1 command configures slot 12 to load the Cisco IOS configuration file from the router NVRAM and sets the serial port to CON.
  
  
• The cnfrtr 12 n 2 command configures slot 12 to load the factory-default Cisco IOS configuration file from the NPM and sets the serial port to AUX.
  
  

TimeSaver To combine your Cisco IOS configuration and your serial port function into one command, use cnfrtr slot {n | r} [1 | 2]. See Example 5.

sw180          TN    Cisco           IGX 8420  9.3.2l    Oct. 9 2000  10:26 GMT 
 
Configuration for Router Slot 12:                                   Snapshot
    IOS Configuration:      from router NVRAM
    Router Serial Port:     CON
 
 
 
                                                                                
Last Command:cnfrtr 12 r 1
 
Next Command:

Use cnfrtrparm to set the router service-level configuration on a logically active or standby slot. This command can also be used to configure ROM monitor action, to reset the router following Cisco IOS IPC failure, and to disable boot Flash write protection.

Syntax: cnfrtrparm slot parm-index parm-value (see Table 11 for more syntax information).

Tip To prevent router reset on Cisco IOS IPC failure, use cnfrtrparm slot 2 1.

For example (see Example 6):

• The cnfrtrparm 12 1 1 command configures slot 12 to load Cisco IOS software from rommon.
  
  
• The cnfrtrparm 12 2 1 command configures slot 12 to not reset the router on Cisco IOS software IPC failure.
  
  
• The cnfrtrparm 12 3 1 command configures slot 12 to disable boot Flash write protection.
  
  

sw180          TN    Cisco           IGX 8420  9.3.2l    Oct. 9 2000  10:19 GMT 
 
1   Rommon Action                   [  load IOS         ]
2   Reset Router on IOS IPC Failure [  No               ]
3   BootFlash Write Enable          [  Yes              ]
 
 
 
                                                                                
Last Command:cnfrtrparm 12 1 1
 
 
Next Command:

The rstrtr command (see Example 7) resets the card's embedded router without requiring the card to be physically reset or restarted; the command can only be used on logically active slots.

Syntax: rstrtr slot

sw180          TN    Cisco           IGX 8420  9.3.2l    Oct. 9 2000  10:27 GMT 
 
Configuration for Router Slot 12:                                   Snapshot
    IOS Configuration:      from router NVRAM
    Router Serial Port:     CON
 
 
 
 
                                                                                
This Command:rstrtr 12
 
 
Reset router with above configuration ? (y|n)

Managing the Boot Flash Cisco IOS Image

The URM boot Flash image is managed through SWSW commands entered at the SWSW CLI. By default, boot Flash memory is configured as read-only. However, the boot Flash memory can be reconfigured to read-write for Cisco IOS image updates using the following procedure.

Step 1   At the SWSW CLI, use the SWSW command cnfrtrparm slot 3 y. The terminal connected to the embedded router displays the following message:

%IPC_URM-6-BFLASH:Boot flash programmed Read/Write from IGX console

Step 2   Update the boot Flash Cisco IOS image using a standard Cisco IOS image update procedure (see Cisco IOS Configuration Fundamentals Configuration Guide for more information).

Step 3   At the SWSW CLI, use the SWSW command cnfrtrparm slot 3 n to reconfigure the boot Flash memory to read-only.

Cisco IOS Software for the URM

You can use standard Cisco IOS commands at the Cisco IOS CLI to configure voice connections on the URM. See Table 12 for a summary of Cisco IOS commands used to configure the URM for the first time.

The URM stores two Cisco IOS images: the main system image "urm-is-mz" stored in system Flash, and the boot helper image "urm-wboot-mz" stored in boot Flash. The boot Flash image is a Cisco IOS image with limited functionality and is used to recover from the loss or damage of the main Cisco IOS system image.

For information on how to recover from the loss or damage of the Cisco IOS system image, see Cisco  IOS Configuration Fundamentals Configuration Guide.

For more information on Cisco IOS configuration and commands, see Cisco IOS Configuration Fundamentals Configuration Guide.

For details on command syntax and parameters, see Cisco IOS Configuration Fundamentals Command Reference.

To see a sample Cisco IOS start-up screen for the URM, see Example 8.

System Bootstrap, Version 12.1(5r)YA, RELEASE SOFTWARE (fc1)
Copyright (c) 2000 by cisco Systems, Inc.
IGX URM processor with 65536 Kbytes of main memory
 
Main memory is configured to 64 bit mode with parity disabled
 
 
program load complete, entry point: 0x80008000, size: 0xa22638
 
Self decompressing the image : 
#############################################################################################################
#############################################################################################################
#############################################################################################################
#############################################################################################################
#############################################################################################################
#############################################################################################################
#############################################################################################################
#############################################################################################################
############################################################# [OK]
 
 
 
Smart Init is enabled
 
smart init is sizing iomem
 
  ID            MEMORY_REQ                 TYPE
 
0001D0          0X0025178C URM Front Card ATM Port
 
0001D2          0X000E9500 URM Backcard BC_2V2FE FE Ports
 
0001D4          0X000FF10C URM Backcard BC_2V2FE T1/E1 Ports
 
                0X0010A6F8 public buffer pools
 
                0X00211000 public particle pools
 
TOTAL:          0X00755490
 
 
If any of the above Memory Requirements are 
 
"UNKNOWN", you may be using an unsupported
 
configuration or there is a software problem and
 
system operation may be compromised.
 
Rounded IOMEM up to: 8Mb.
 
Using 12 percent iomem. [8Mb/64Mb]
 
 
              Restricted Rights Legend
 
Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.
 
           cisco Systems, Inc.
           170 West Tasman Drive
           San Jose, California 95134-1706
 
 
 
Cisco Internetwork Operating System Software 
IOS (tm) 3600 Software (URM-IS-M), Version 12.1(5)YA, RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/pcgi-bin/ibld/view.pl?i=support  
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Wed 24-Jan-01 12:29 by yiyan
Image text-base: 0x60008960, data-base: 0x6113E000
 
cisco URM (R527x) processor (revision 01) with 57344K/8192K bytes of memory.
Processor board ID 
R527x CPU at 225Mhz, Implementation 40, Rev 10.0
Bridging software.
X.25 software, Version 3.0.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
Primary Rate ISDN software, Version 1.1.
URM image loaded from flash (controlled by "cnfrtrparm" on IGX)
URM booting with BLANK configuration (controlled by "cnfrtr" on IGX)
Front card type: URM Main Board
Back card type: URI-2FE2V
2 FastEthernet/IEEE 802.3 interface(s)
1 ATM network interface(s)
2 Channelized T1/PRI port(s)
DRAM configuration is 64 bits wide with parity disabled.
123K bytes of non-volatile configuration memory.
32768K bytes of processor board System flash (Read/Write)
8192K bytes of processor board Boot flash (Device not programmable)
Establishing interprocessor communication...done
IGX slot number 15
Boot flash programmed Read/Write from IGX
 
SETUP: new interface FastEthernet1/0 placed in "shutdown" state
SETUP: new interface FastEthernet1/1 placed in "shutdown" state
 
 
Press RETURN to get started!
 
 
00:00:18: %LINK-3-UPDOWN: Interface FastEthernet1/0, changed state to up
00:00:18: %LINK-3-UPDOWN: Interface FastEthernet1/1, changed state to up
00:00:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0, changed state to down
00:00:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/1, changed state to down
00:00:24: %LINK-3-UPDOWN: Interface ATM0/0, changed state to up
00:00:25: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0/0, changed state to up
00:00:32: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0, changed state to up
00:00:50: %LINK-5-CHANGED: Interface FastEthernet1/0, changed state to administratively down
00:00:50: %LINK-5-CHANGED: Interface FastEthernet1/1, changed state to administratively down
00:00:51: %SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software 
IOS (tm) 3600 Software (URM-IS-M), Version 12.1(5)YA, RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/pcgi-bin/ibld/view.pl?i=support  
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Wed 24-Jan-01 12:29 by yiyan
00:00:51: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0, changed state to down
00:00:51: %IP-5-WEBINST_KILL: Terminating DNS process
00:00:54: %DSPRM-5-UPDOWN: DSP 15 in slot 2, changed state to up
00:00:55: %DSPRM-5-UPDOWN: DSP 7 in slot 2, changed state to up
00:00:55: %DSPRM-5-UPDOWN: DSP 8 in slot 2, changed state to up
00:00:55: %DSPRM-5-UPDOWN: DSP 9 in slot 2, changed state to up
00:00:55: %DSPRM-5-UPDOWN: DSP 10 in slot 2, changed state to up
00:00:55: %DSPRM-5-UPDOWN: DSP 11 in slot 2, changed state to up
00:00:55: %DSPRM-5-UPDOWN: DSP 12 in slot 2, changed state to up
00:00:55: %DSPRM-5-UPDOWN: DSP 13 in slot 2, changed state to up
00:00:55: %DSPRM-5-UPDOWN: DSP 14 in slot 2, changed state to up
00:00:55: %DSPRM-5-UPDOWN: DSP 0 in slot 2, changed state to up
00:00:55: %CONTROLLER-5-UPDOWN: Controller T1 2/0, changed state to up
00:00:55: %CONTROLLER-5-UPDOWN: Controller T1 2/1, changed state to up
Router>
Router>
Router>en
Router#
Router# show version

Cisco Internetwork Operating System Software 
IOS (tm) 3600 Software (URM-IS-M), Version 12.1(5)YA, RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/pcgi-bin/ibld/view.pl?i=support  
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Wed 24-Jan-01 12:29 by yiyan
Image text-base: 0x60008960, data-base: 0x6113E000
 
ROM: System Bootstrap, Version 12.1(5r)YA, RELEASE SOFTWARE (fc1)
ROM: 3600 Software (URM-IS-M), Version 12.1(5)YA, RELEASE SOFTWARE (fc1)
 
Router uptime is 2 minutes
System returned to ROM by power-on
System image file is "flash:urm-is-mz.121-5.YA"
 
cisco URM (R527x) processor (revision 01) with 57344K/8192K bytes of memory.
Processor board ID 
R527x CPU at 225Mhz, Implementation 40, Rev 10.0
Bridging software.
X.25 software, Version 3.0.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
Primary Rate ISDN software, Version 1.1.
 
IGX slot number 15
URM image loaded from flash (controlled by "cnfrtrparm" on IGX)
URM booting with BLANK configuration (controlled by "cnfrtr" on IGX)
Front card type: URM Main Board
Back card type: URI-2FE2V
2 FastEthernet/IEEE 802.3 interface(s)
1 ATM network interface(s)
2 Channelized T1/PRI port(s)
DRAM configuration is 64 bits wide with parity disabled.
123K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
16384K bytes of processor board Boot flash (Read/Write)
 
Configuration register is 0x101
 
Router#
Router#
Router# show running configuration

Building configuration...
 
Current configuration : 672 bytes
!
version 12.1
no service single-slot-reload-enable
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
!
logging rate-limit console 10 except errors
!
voice-card 2
!
ip subnet-zero
!
!
no ip finger
!
call rsvp-sync
!
!
 
!
!
!
controller T1 2/0
!
controller T1 2/1
!
!
interface ATM0/0
 no ip address
 no atm ilmi-keepalive
!
interface FastEthernet1/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet1/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
ip classless
no ip http server
!
!
dial-peer cor custom
!
!
!
!
line con 0
 transport input none
line aux 0
line vty 0 4
!
end
 
Router#
Router#

Troubleshooting the URM

You can use both SWSW self-test and background test diagnostic commands on the URM (see Table 13). Self-test works with the embedded UXM-E.

Cisco IOS Image Recovery

If the main Cisco IOS system image stored in Flash is lost or damaged, you can use the Cisco IOS boot helper image to copy backup images or configuration files from an external TFTP server or another online source.

Step 1   At the SWSW CLI, use the SWSW command cnfrtrparm slot 1 2 to configure the embedded router to load the boot helper image instead of the system image at router startup.

Step 2   Use the SWSW command resetcd or rstrtr to reboot the embedded router. The embedded router reboots using the Cisco IOS boot helper image.

Step 3   At the Cisco IOS CLI, repeat Steps 1 through 12 of the procedure described in "Configuring the URM".

Step 4   Using the Cisco IOS command copy, copy the saved Cisco IOS configuration file from the external TFTP server to the embedded router NVRAM.

Step 5   At the SWSW CLI, use the SWSW command cnfrtrparm slot 1 1 to configure the embedded router to load the system image at router startup.

Step 6   Use the SWSW command resetcd or rstrtr to reboot the embedded router. The embedded routerl reboots using the new Cisco IOS system image.

Replacing the URM

When replacing the URM, you should complete these tasks in the following order to avoid damage to the card:

1. Remove the front card.

2. Remove the back card.

3. Replace the back card.

4. Replace the front card.

5. Configure the card as appropriate.

---

Note   The Cisco IOS software holds the embedded router in reset when the URI back card is removed; the embedded router does not resume until the URI back card is reseated.

---

Removing the Front and Back Cards

You need the following tools and parts to remove the front and back cards:

• ESD-preventive wrist strap
  
  
• 5/32-inch Allen wrench
  
  
• Number 1 Phillips screwdriver
  
  
• Pencil or pen
  
  

Caution   The VWIC component of the URI back card is not hot-swappable; removal of the VWIC can damage the URM.

Step 1   Using the Cisco IOS command copy, save the Cisco IOS configuration to an external TFTP server.

Step 2   In a separate terminal session, connect with the embedded UXM-E.

Step 3   Using the SWSW command cnfrtr slot n 1, reconfigure the embedded router to load the Cisco IOS configuration file from the NPM.

Step 4   Attach an ESD-preventive wrist strap before handling the card. The Cisco IGX 8410 cabinet has attached wrist straps on the front and the back of the chassis.

Caution   Always follow ESD-prevention procedures when you remove and replace components. Wear an ESD-preventive wrist strap or ground yourself by periodically touching the metal part of the chassis.

Step 5   Using the 5/32-inch Allen wrench, open the Cisco IGX 8400 series switch door.

Step 6   Using the number 1 Phillips screwdriver, loosen the panel fasteners at the top and bottom of the front card faceplate.

Step 7   Hold down the ejector levers while unseating the front card. Hold the card faceplate with one hand and support the card's weight with the other, then slide the card vertically out of the slot.

Caution   Always use the ejector levers when disengaging or seating a card. Failure to do so can cause erroneous system error messages, and indicate module failure.

Step 8   Identify and mark any cable locations before removing cables from the back card, then unplug all cables.

Step 9   Using the number 1 Phillips screwdriver, loosen the captive mounting screws on the top and bottom of the back card faceplate.

Step 10   Hold down the ejector levels and slide the back card out of the cabinet.

Note   The VWIC must be installed for the back card to function.

Replacing the Front and Back Cards

You need the following tools and parts to replace the front and back cards:

• ESD-preventive wrist strap
  
  
• 5/32-inch Allen wrench
  
  
• Number 1 Phillips screwdriver
  
  

Step 1   Attach an ESD-preventive wrist strap before handling the card. The Cisco IGX 8400 series cabinet has attached wrist straps on the front and the back of the chassis.

Caution   Always follow ESD-prevention procedures when you remove and replace components. Wear an ESD-preventive wrist strap or ground yourself by periodically touching the metal part of the chassis.

Step 2   Visually inspect the replacement BC-URI-2FE2V to verify it is in good working order.

Note   The VWIC must be installed for the back card to function. Before installing the back card in the Cisco IGX chassis, verify that the correct VWIC is in place.

Step 3   Hold down the ejector levers and slide the back card into the cabinet. Make sure the ejector levers do not get caught behind the faceplate.

Caution   Always use the ejector levers when disengaging or seating a card. Failure to do so can cause erroneous system error messages, and indicate module failure.

Step 4   Using the number 1 Phillips screwdriver, tighten the captive mounting screws on the top and bottom of the back card faceplate.

Step 5   Reconnect all cables according to the marks made before removing the card.

Step 6   Using the 5/32-inch Allen wrench, open the Cisco IGX 8400 series switch door.

Step 7   Hold the front card faceplate with one hand and support the card's weight with the other, then slide the card vertically into the selected slot. Hold down the ejector levers while seating the card.

Note   The URM automatically powers on when the card is seated. The front card faceplate LEDs will blink, indicating URM POST (see Figure 2 for LED location and description).

Step 8   Wait for the front card faceplate LEDs to finish cycling, then verify that the standby LED (STBY) is on.

Step 9   Using the number 1 Phillips screwdriver, tighten the panel fasteners at the top and bottom of the front card faceplate.

Step 10   Using the 5/32-inch Allen wrench, close the Cisco IGX 8400 series switch door.

Step 11   Repeat Steps 1 through 12 of the procedure described in "Configuring the URM".

Step 12   Using the Cisco IOS command copy, copy the saved Cisco IOS configuration file from the external TFTP server to the embedded router NVRAM.

Features Supported on the URM

URM Signaling Features

Note   The URM extracts information from the CAS signaling bits in the T1 or E1 frame. When a signaling bit changes state, the URM sends signaling packets to the card at the other end of the connection. CSS signaling, such as DPNSS and ISDN signaling, are supported through a clear (transparent) channel.

• Telephony interface signaling T1 CAS
  
  
• CCS Q.Sig T1/E1
  
  
• CCS Q.921
  
  
• Transparent CAS signaling
  
  
• CCS
  
  
• CCS, ISDN PRI, user side
  
  
• CCS-DPNSS
  
  
• CCS, transparent (IP and ATM)
  
  
• G.703
  
  
• PCM at 64 kbps, on a maximum of 60 channels per card
  
  
• Flexible signaling-bit conditioning when a circuit alarm occurs
  
  
• Inbound signaling such as DTMF support
  
  
• Inbound signaling such as MF, DNIS, ANI support
  
  
• Euro-ISDN, PRI only (Cisco IOS Release 12.0(2)T)
  
  

URM Voice Processing Features

• Channel compression: except where noted, the following features are used for VoFR (FRF .11/12) VoATM (AAL5) and VoIP (H.323)
  
  
• • G.711
    
    
  • G.726
    
    
  • G.729 (compression delay below 20 milliseconds)
    
    
  • G.729a
    
    
  • G723.1 (only for VoIP)
    
    
  • G728
    
    
• Silence suppression according to G.729b
  
  
• Comfort noise generation
  
  
• CSACELP compression at 8 kbps on 30 channels per G.729 per E1
  
  
• Fax relay, for compressing G3 fax traffic to 14.4 kbps through the network cloud
  
  
• A-law or Mu-law voice encoding on a per-channel basis
  
  
• Programmable voice circuit gain in the range -8 dB through +6 dB or better
  
  
• Per-channel, automatic bandwidth upgrade for modem or fax circuits (upgrade for fax only)
  
  
• 60 channels of G.729a support
  
  
• Idle code suppression (up to 8 x 64 kbps connection: no packets send when codec idle code is detected)
  
  
• Super-rate data connections—which can be an aggregate of 8 x 64 kbps (up to 2 Mbps on CVM)
  
  
• AAL5 VoATM
  
  
• ADPCM voice compression at 24 kbps per G.726
  
  
• Compression rate configurable on per-channel basis
  
  
• G.729 compression delay below 10 ms
  
  
• LDCELP voice compression at 16 kbps per G.728, on a maximum 30 channels per card
  
  

URM Performance Features

• ATM, AAL5 SAR performance of 265K cells/sec full duplex (less than OC-3) with 1518-byte packets
  
  
• Quick card boot and initialization (less than 3 minutes)
  
  
• Support for up to 941 VCs
  
  
• Support for up to 100 ABR VCs
  
  

URM Connection Types

Note   For VISM connections, the URM only supports VoIP.

Note   Use FRF.8 SIW transparent mode for VoATM connections, and use FRF.8 SIW translational mode for VoIP and data connections.

Cisco IGX 8400 Series Card and Node Limits

Note   No limitation exists for the number of URM modules in a Cisco IGX switch. However, the aggregate bandwidth allocated to the cards in the node cannot exceed the total available Cisco IGX backplane bandwidth. Table 15: Cisco IGX 8400 Series Card and Node Limitations Limit Description Software Version 8.5 Software Version 9.1 Software Version 9.2 Software Version 9.3 No. of VCs per switch The maximum number of terminating connections supported by the switch. 2750 2750 2750 2750 No. of VC_BW table entries (NPM-16, NPM-32, and NPM-64) Each VC requires a VC_BW table entry, but VCs might share the same table entry if their parameter set is identical. 254 254 254 254 No. of VC_BW table entries (NPM-64B) Each VC requires a VC_BW table entry, but VCs might share the same table entry if their parameter set is identical. 699 699 699 1999 No. of thru-connections per switch The total number of users with connections that can transit a single switch. 19,000 19,000 19,000 19,000 Connection descriptor size The maximum number of bytes in the VCs connection descriptor field. — — — — No. of VCs per switch with connection event logging enabled The maximum number of connections supported per switch if connection event logging is enabled. — 1000 1000 1000 No. of LCONs per switch (NPM-16) The maximum number of connections supported without grouping or bundling. — — — — No. of LCONs per switch (NPM-32, NPM-32B) The maximum number of connections supported without grouping or bundling. 2750 2750 2750 2750 No. of LCONs per switch (NPM-64) The maximum number of connections supported without grouping or bundling. 2750 2750 2750 2750 No. of LCONs per switch (NPM-64B) The maximum number of connections supported without grouping or bundling. 3500 3500 3500 3500 No. of connection groups The maximum number of connection groups defined in the node. 1000 (existing groups from upgrade only) — — — No. of VCs per connection group The maximum number of VCs defined in a connection group. 16 — — — No. of connection classes The number of classes of service that can be defined as a shorthand way of adding ATM connections. 10 10 10 10 Connection class descriptor size The maximum size in bytes of the connection-class descriptor. 25 25 25 25 No. of jobs The maximum number of jobs that can be defined in a switch. 20 20 20 20 Job memory space The maximum amount of BRAM in bytes, reserved for job storage. 30,000 30,000 30,000 30,000 Maximum job size The maximum size of a single job in bytes, where job-desc is the number of characters in the job descriptor, the number of commands is the number of commands in the job where t_chars is the total of the number of characters in each command in the job. 3566 15 + job-desc + 5 (no. of cmnds) + t_chars 3566 15 + job-desc + 5 (no. of cmnds) + t_chars 3566