Cisco Systems 2960 Benutzerhandbuch
38-33
Catalyst 2960 and 2960-S Switch Software Configuration Guide
OL-8603-09
Chapter 38 Troubleshooting
Troubleshooting Tables
Port numbering in one or more
switches is incorrect or changed.
switches is incorrect or changed.
Enter the show switch detail user EXEC
command.
command.
Multiple StackWise cables are disconnected
from stack members creating two separate
stacks. (see
from stack members creating two separate
stacks. (see
).
Slow traffic throughput on stack
ring
ring
Test the switch interface.
Defective StackWise switch interface.
Note
The only solution is to replace the
switch.
switch.
Problems with stack master
election. stacks merging, or new
switches joining stack
election. stacks merging, or new
switches joining stack
Review the rules of stack master election. Current stack master is rebooted or
disconnected (see
Port numbering seems off.
Verify port numbering (see
Enter the show switch privileged EXEC
command.
command.
Interpret state messages. (see
Stack members need to be
upgraded.
upgraded.
Stack members running different major
or minor versions of the Cisco IOS
software.
or minor versions of the Cisco IOS
software.
Defective StackWise switch interface or cable
(see
(see
StackWise link connection
problems
problems
Look at the LED behavior.
Stack not operating at full bandwidth (see
.)
Table 38-6
Switch Stack Troubleshooting Scenarios (continued)
Symptom/problem
How to Verify Problem
Possible Cause/Solution