Cisco uBR10000 Series Universal Broadband Routers

Field Notice: uBR10000 Proactive Upgrade of PRE to PRE1

Revised March 17, 2003

March 22, 2002

Products Affected


Top Assembly

Printed Circuit Assembly


HW Rev.

Part Number


Part Number





? ?

Note: uBR10-PRE only shipped before December 31, 2001. Some RMA parts can be ESR-PRE=, but only in some rare cases.


Problem Description

The original uBR10000 PRE does not accommodate planned, future Cisco IOS® Software feature sets that are necessary for forthcoming line cards due to lack of memory. If you upgrade to PRE-1, you can alleviate this issue. The uBR10000 chassis shipments that contained the PRE are eligible for a no-charge, proactive upgrade to the PRE-1.

Note:? The PRE-1 shipped on all new chassis since January 1, 2002, but some return materials authorizations (RMAs) were fulfilled with ESR-PRE=. When you are in doubt, check with the Cable Business Unit serviceability and design engineer to have the customer entitlement verified by the product marketing representative.


The PRE-1 has memory size enhancements that allow for larger feature sets on follow-up products.

Problem Symptoms

The Cisco IOS Software image does not fit in RAM.


There is no workaround. The solution for this issue is to upgrade the uBR10-PRE to ESR-PRE-1. Use the standard RMA process, as this upgrade is now service supported and the upgrade program has closed.

Note:?The uBR10012 chassis cannot operate with mixed PREs. Therefore, both the primary and secondary engine slots must be filled with the same engine. Make sure that you upgrade both engines to PRE-1 when you run secondary backup modes.

How To Identify Hardware Levels

The show version command identifies PRE and PRE-1 by name. You can use the show chassis command to verify the Top Level Assembly Part Number.

This is the output of the show version command from a PRE-RP:

UBR10k# show version
    Cisco Internetwork Operating System Software 
    IOS (tm) 10000 Software (UBR10K-K8P6-M), Version
    12.2(122BC.020212.), CISCO DEVELOPMENT TEST
    Copyright (c) 1986-2002 by cisco Systems, Inc.
    Compiled Tue 12-Feb-02 19:26 by 
    Image text-base: 0x600089C0, data-base: 0x61718000
    ROM: System Bootstrap, Version 12.0(9r)SL2, RELEASE
    SOFTWARE (fc1)
    rrUBR10k uptime is 1 week, 2 days, 18 hours, 10 minutes
    System returned to ROM by reload at 20:55:17 PST Sat Feb 16
    System restarted at 20:57:50 PST Sat Feb 16 2002
    System image file is "disk0:ubr10k-k8p6-mz.bc1.12Feb02"
    cisco uBR10000 (PRE-RP) processor with 393215K/131072K
    bytes of memory.
    Processor board ID TBA05100153
    R7000 CPU at 262Mhz, Implementation 39, Rev 2.1, 256KB L2,
    2048KB L3 Cache
    Backplane version 1.0, 8 slot 
    Last reset from power-on
    Toaster processor tmc0 is running.
    Toaster processor tmc1 is running.
    2 TCCplus card(s)
    1 Ethernet/IEEE 802.3 interface(s)
    1 FastEthernet/IEEE 802.3 interface(s)
    2 Gigabit Ethernet/IEEE 802.3 interface(s)
    2 Packet over SONET network interface(s)
    5 Cable Modem network interface(s)
    509K bytes of non-volatile configuration memory.
    46976K bytes of ATA PCMCIA card at slot 0 (Sector size 512
    125440K bytes of ATA PCMCIA card at slot 1 (Sector size 512
    32768K bytes of Flash internal SIMM (Sector size 256KB).
    Configuration register is 0x2102

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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