Installation guide

Chapter 3 Troubleshooting
Replacing a Failed Stack Member
3-8
Catalyst 3750 Switch Hardware Installation Guide
OL-6336-01
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 module or XENPAK module
not recognized
The SFP module or XENPAK
module might be installed upside
down.
The SFP module or XENPAK
module does not snap into the slot.
Verify that the SFP module or
XENPAK module is not
installed upside down.
Remove the SFP module or
XENPAK module. Inspect for
physical damage to the
connector, the module, and the
module slot.
Replace the SFP module 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 2-34.
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 3-1 Common Problems and Solutions (continued)
Symptom Possible Cause Resolution