Cisco 2651XM-V, Руководство по установке оборудования

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Chapter 4 Troubleshooting
Diagnosing Problems
4-6
Catalyst 3750 Switch Hardware Installation Guide
78-15136-02
The switch port is placed in
error-disabled state after SFP is
inserted Bad or non-Cisco-approved SFP. Remove the SFP module from
the switch, and replace it with a
Cisco-approved module. Use the
errdisable recovery cause
gbic-invalid
global
configuration command to
verify the port status, and enter a
time interval to recover from the
error-disable state.
Refer to the switch command
reference guide for information
on the
errdisable recovery
command.
Switch does not recognize the
SFP module
The SFP module might be installed
upside down.
The SFP module does not snap into
the slot.
Verify that the SFP module is
not installed upside down.
Remove the SFP module.
Inspect for physical damage to
the connector, the module, and
the module slot.
Replace the SFP module with a
known good SFP 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