Cisco Catalyst 3560-X Series, Software Configuration Manual

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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
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Chapter 1 Troubleshooting
Troubleshooting Tables
Slow traffic throughput on stack
ring Test the switch interface. Defective StackWise switch interface.
Note
The only solution is to replace the
switch.
Problems with stack master
election. stacks merging, or new
switches joining stack Review the rules of stack master election. Current stack master is rebooted or
disconnected (see Stack Master is Rebooted or
Disconnected ).
Port numbering seems off. Verify port numbering (see Stack Master
Election and Port Number Assignment .)
Enter the show switch privileged EXEC
command.
Interpret state messages. (see Joining a Stack:
Typical Sequence States and Rules.)
Stack members need to be
upgraded. Stack members running different major
or minor versions of the Cisco IOS
software. Defective StackWise switch interface or cable
(see
Quick-and-Easy Catalyst 3750 and
Catalyst 3750E Switch Stack Upgrades .)
StackWise link connection
problems Look at the LED behavior. Stack not operating at full bandwidth (see
Verifying StackWise Link Connections Using
LEDs
.)
Table 1-6 Switch Stack Troubleshooting Scenarios (continued)
Symptom/problem How to Verify Problem Possible Cause/Solution