CHAPTER
36-1
Cisco ME 3400 EthernetAccess Switch SoftwareConfiguration Guide
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36
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 Protoco l , pag e 36 -2
•Recovering from a Lost or Forgotten Password, page 36-3
Note Recovery procedures require that you have physical access to the switch.
•Preventing Autonegotiation Mismatches, page 36-8
•SFP Module Security and Identification, page 36-9
•Monitoring SFP Module Status, page 36-9
•Using Ping, page 36-10
•Using Layer 2 Traceroute, page 36-13
•Using IP Traceroute, page 36-15
•Using TDR, page 36-17
•Using Debug Commands, page 36-18
•Using the show platform forward Command, page 36-19
•Using the crashinfo File, page 36-22