Cisco 7100 Series VPN Routers

Field Notice: Minimum Recommended Cisco IOS Software for Cisco 7120/40 VPN Routers with QED 2.1

December 5, 2000

Products Affected


Cisco 7120 Series with QED 2.1

Cisco 7140 Series with QED 2.1

Problem Description

Cisco 7120/40 VPN routers running under the minimum recommended Cisco IOS® software versions listed in this announcement (refer to the Workaround/Solution section) with a QED 2.1 CPU may reload when certain online insertion and removal (OIR) activity is performed. Routers with QED version 1.4 are not affected.


Shipments of Cisco 7120/40 VPN routers prior to September 2000, shipped with version 1.4 of the QED CPU, were affected. Development Engineering testing has shown that the 1.4 version of the QED CPU is unaffected by this problem.

Problem Symptoms

Console Error Message:

System received a Bus Error exception ***
                             signal= 0xa, code= 0x10, context= 0x60e7f1e0
                             PC = 0x604241b0, Cause = 0x20, Status Reg = 0x34008002
                             Kernel Level Stack Trace:
                             Initial SP = 0x60cf8928, Initial PC = 0x604241b0, RA =
                             Frame 0 : FP= 0x60cf8928, PC= 0x604241b0, 0 bytes
                             Frame 1 : FP= 0x60cf8928, PC= 0x60413700, 24 bytes
                             Frame 2 : FP= 0x60cf8940, PC= 0x6041fce4, 40 bytes
                             Frame 3 : FP= 0x60cf8968, PC= 0x6041fe7c, 112 bytes
                             Frame 4 : FP= 0x60cf89d8, PC= 0x6041f510, 32 bytes
                             Process Level Stack Trace:
                             Initial SP = 0x61334b58, Initial PC = 0x60421734, RA =
                             Frame 0 : FP= 0x61334b58, PC= 0x60421734, 8 bytes
                             Frame 1 : FP= 0x61334b60, PC= 0x60422894, 48 bytes
                             Frame 2 : FP= 0x61334b90, PC= 0x60459d58, 32 bytes
                             Frame 3 : FP= 0x61334bb0, PC= 0x60826d58, 304 bytes
                             Frame 4 : FP= 0x61334ce0, PC= 0x60827278, 112 bytes
                             Reading c7100-p-mz.120-4.T.symbols
                             c7100-p-mz.120-4.T.symbols read in
                             Enter hex value: 0x60421734 0x60422894 0x60459d58
                             0x60826d58 0x60827278
                             Enter hex value:

Output from a show version command on an affected 7120/40 VPN router:

nat-uut#sh ver
                             Cisco Internetwork Operating System Software
                             IOS (tm) 7100 Software (C7100-P-M), Version 12.0(4)T,
                             RELEASE SOFTWARE (fc1)
                             Copyright (c) 1986-1999 by cisco Systems, Inc.
                             Compiled Thu 29-Apr-99 06:44 by kpma
                             Image text-base: 0x60008900, data-base: 0x60C36000
                             ROM: System Bootstrap, Version 12.0(19990210:195103)
                             [12.0XE 105], DEVELOPMENT SOFTWARE
                             BOOTFLASH: 7100 Software (C7100-BOOT-M), Version
                             12.0(10)S, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
                             nat-uut uptime is 0 minutes
                             System restarted by power-on
                             System image file is
                             cisco 7100 processor with 122880K/40960K
                             bytes of memory.
                             R7000 CPU at 262Mhz, Implementation 39, Rev 2.1, 256KB
                             L2, 2048KB L3 Cache


To mitigate exposure to this problem, please upgrade your software to the following minimum or greater Cisco IOS release:

  • 12.1(4)

  • 12.1(4)E

  • 12.1(5)T

Download Cisco IOS Image (registered customers only)

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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