Troubleshooting The Switching Module; Useful Cisco Ios Commands - Switching Modules; Troubleshooting Supervisor Modules; Supervisor Module Leds - Cisco Catalyst 9404R Switch Hardware Installation Manual

Troubleshooting
Note We recommend that you change the air filter every three months. However, examine the air filter once a month
(or more often in dusty environments) and replace it if it appears to be excessively dirty or damaged. To
comply with Telecordia GR-63-Core standard air filter requirements for NEBS deployments, the air filter
must be replaced, not cleaned

Troubleshooting the Switching Module

Each switching module has one STATUS LED that provides information about the module and one numbered
PORT LINK LED for each port on the module. Refer to
on page 134

Useful Cisco IOS Commands - Switching Modules

The show module command provides information that is useful in solving problems with ports on individual
modules.
Some problems can be solved by resetting the switching module. Power cycle the chassis - this resets, restarts,
and power cycles the switching module.

Troubleshooting Supervisor Modules

This section only addresses problems with hardware. Problems with features or configuration are not covered
here. Refer for your software configuration guide and release notes for information on configuring features
or identifying known problems.

Supervisor Module LEDs

• Check the LEDs on your supervisor and compare them to the described LED behaviors. See
• The Supervisor Module STATUS LED turns either amber or red under the following conditions:

Standby Supervisor Engine Problems

•
to determine the status of the LEDs.
Catalyst 9400 Series Supervisor Module LEDs, on page 135
• Power supply failure (not the same as removal of power supply)
• Power supply fan failure
• Removal or failure of fan tray
• Mismatched power supplies in the chassis
Switch# show module
If the standby supervisor module is not online or status indicates "other" or "faulty" in the output of the
show module command or an amber status LED, create a console connection to the standby supervisor
Cisco Catalyst 9400 Series Switching Module LEDs,
Cisco Catalyst 9400 Series Switches Hardware Installation Guide

Troubleshooting the Switching Module

Cisco
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