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Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
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Troubleshooting
This chapter describes how to identify and resolve software problems related to the Cisco IOS software
on the Cisco ME 3400 switch.
You can use the command-line interface (CLI) to identify and solve problems.
Additional troubleshooting information related to hardware is provided in the hardware installation
guide.
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, Release 12.2.
This chapter consists of these sections:
• Recovering from Corrupted Software By Using the Xmodem Protocol, page 42-2
• Recovering from a Lost or Forgotten Password, page 42-3
Note Recovery procedures require that you have physical access to the switch.
• Preventing Autonegotiation Mismatches, page 42-8
• SFP Module Security and Identification, page 42-8
• Monitoring SFP Module Status, page 42-9
• Monitoring Temperature, page 42-9
• Using Ping, page 42-9
• Using Layer 2 Traceroute, page 42-13
• Using IP Traceroute, page 42-14
• Using TDR, page 42-16
• Using Debug Commands, page 42-17
• Using the show platform forward Command, page 42-19
• Using the crashinfo File, page 42-21