Cisco 3750 - Catalyst EMI Switch, Hardware Installation Manual

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4-9
Catalyst 3750 Switch Hardware Installation Guide
78-15136-03
Chapter 4 Troubleshooting
Replacing a Failed Stack Member
Replacing a Failed Stack Member
If you need to replace a failed stack member, you can hot swap or replace the
switch by following this procedure:
Step 1
Get a replacement switch that has the same model number as the failed switch.
Step 2 Power down the failed switch.
SFP or XENPAK module not
recognized The SFP or XENPAK module might
be installed upside down.
The SFP or XENPAK module does
not snap into the slot.
Verify that the SFP or XENPAK
module is not installed upside
down.
Remove the SFP or XENPAK
module. Inspect for physical
damage to the connector, the
module, and the module slot.
Replace the SFP or XENPAK
module with a known good
module.
No stack link between switches
or high error rate between
switches in the stack Poor cable connection.
Bad StackWise cable or damaged
StackWise port.
Secure the thumb screws on the
StackWise cables. See
Figure 3-35 .
Remove the StackWise cable,
and inspect the cable and
StackWise port for bent pins or
damaged connectors.
If the StackWise cable is bad,
replace it with a known good
cable.
Table 4-1 Common Problems and Solutions (continued)
Symptom Possible Cause Resolution