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SSH Crash When Upgraded to Cisco IOS Release 12.2(58)SE In Catalyst 2960

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Introduction

 

This section provides solution for the SSH crash that occurs when you upgrade to  Cisco IOS Release 12.2(58)SE in Catalyst 2960 switch.

Core Issue

On upgrading the Catalyst 2960 to Cisco IOS 12.2(58)SE, every time when you SSH to it, the switch reboots and gives the tracebacks

 

07:58:52 CST Tue Aug 14 2012: Unexpected exception to CPUvector 200, PC = 1EADA28

-Traceback= 0x1EADA28z 0x1CDC324z 0x1EA5520z 0x1CDC35Cz 0x1CDD0E0z 0x1CDF0C4z 0x1CE06CCz 0x1CE07F8z 0x1D67348z 0x1D611BCz

 

=== Flushing messages (07:58:56 CST Thu Aug 14 2012) ===

 

Buffered messages: (last 4096 bytes only)

000098: *Feb 28 18:03:13.609 CST: %PLATFORM-1-CRASHED: R20 = 0x00000000  R21 = 0x00000000  R22 = 0x00000000  R23 = 0x00000000

000099: *Feb 28 18:03:13.609 CST: %PLATFORM-1-CRASHED: R24 = 0x030E94A4  R25 = 0x030E9448  R26 = 0x02A20000  R27 = 0x02E70000

000100: *Feb 28 18:03:13.609 CST: %PLATFORM-1-CRASHED: R28 = 0x00000000  R29 = 0x04836DC0  R30 = 0x01CDC308  R31 = 0xDEADBEEF

 

 

Resolution

 

The switch may have hit the have hit the following caveat:

 

CSCto62631

 

A switch running Cisco IOS Release 12.2(58)SE might reload if:

 

–SSH version 2 is configured on the switch, and a customized login banner was configured by using the banner login

message global configuration command

 

Use one of these workarounds:

 

–Disable the login banner by entering the no login banner command.

 

–Disable SSH on the switch.

 

–Downgrade to a software version prior to Cisco IOS Release 12.2(58)SE.

 

Source: https://supportforums.cisco.com/thread/2078938?tstart=0

 

 

Related Information

BugToolkit

 

Release Notes for the Catalyst 3750, 3560, 2960-S, and 2960 Switches, Cisco IOS Release 12.2(58)SE1 and Later

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