Cisco Catalyst 9407R User Manual

Useful Cisco IOS Commands - Fan Tray Assembly
You may use the following Cisco IOS commands in the priviledged EXEC mode, to diagnose fan tray problems.
• To turn the blue beacons on:
Switch# hw-module beacon fan-tray on
To turn the blue beacons off:
Switch# hw-module beacon fan-tray off
• To display fan tray speeds:
Switch# configure terminal
Switch(config)# service internal
Switch(config)# end
Switch# test platform hardware chassis fantray {nebs-mode | service-mode | write }
• To display fan tray status:
Switch# show environment status
• To manually enter the NEBS mode:
Switch# configure terminal
Switch(config)# service internal
Switch(config)# end
Switch# test platform hardware chassis fantray nebs-mode on
To turn-off the NEBS mode:
Switch# configure terminal
Switch(config)# service internal
Switch(config)# end
Switch# test platform hardware chassis fantray nebs-mode off
Troubleshooting High Temperature Alarms
A dirty air filter may cause overheating of the switch. Multiple board temperature sensors trigger alarm in
case of overheating caused by dirty filter.
Inspect the air filter if the high temperature alarm goes off.
Cleaning and Replacing Air Filters
The air filter removes dust from the room air drawn into the switch by the cooling fans. Once a month (or
more often in industry environments), you should examine the air filter. If the filter appears dirty, you can
either vacuum or replace it. If the filter appears worn or torn, dispose of it in a responsible manner and install
a replacement air filter.
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
Note
Cisco Catalyst 9400 Series Switches Hardware Installation Guide
137
Troubleshooting
Useful Cisco IOS Commands - Fan Tray Assembly

Cisco Catalyst 9407R Specifications

General

Brand	Cisco
Model	Catalyst 9407R
Category	Switch
Language	English