IBM 12.1(22)EA6 - Manual (Page 467)

C H A P T E R
25-1
Cisco Systems Intelligent Gigabit Ethernet Switch Modules for the IBM BladeCenter, Software Configuration Guide
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25
Troubleshooting
This chapter describes how to identify and resolve Cisco Systems Intelligent Gigabit Ethernet Switch
Module software problems related to the Cisco IOS software. Depending on the nature of the problem,
you can use the command-line interface (CLI), the device manager, or CiscoWorks to identify and solve
problems.
Note For complete syntax and usage information for the commands used in this chapter, see the command
reference for this release and the Cisco IOS Command Summary for Cisco IOS Release 12.1.
This chapter consists of these sections:
• Using Recovery Procedures, page 25-1
• Preventing Autonegotiation Mismatches, page 25-7
• SFP Module Security and Identification, page 25-7
• Diagnosing Connectivity Problems, page 25-7
• Using Debug Commands, page 25-11
• Using the crashinfo File, page 25-13
Using Recovery Procedures
These recovery procedures require that you have physical access to the switch:
• Recovering from a Software Failure, page 25-1
• Recovering from Lost or Forgotten Passwords, page 25-2
Recovering from a Software Failure
Switch software can be corrupted during an upgrade, by downloading the wrong file to the switch, and
by deleting the image file. In all of these cases, the switch does not pass the power-on self-test (POST),
and there is no connectivity.
This procedure uses the Xmodem Protocol to recover from a corrupt or wrong image file. There are many
software packages that support the Xmodem Protocol, and this procedure is largely dependent on the
emulation software that you are using.