Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?


Maintaining the M7i Cooling System



For optimum cooling, verify the condition of the fans.


The router has a single fan tray that installs into the back of the chassis, as shown in M7i Chassis Description.

To check the status of the fans in the fan tray, issue the show chassis environment command. The output includes an entry for each fan in the fan tray:

user@host> show chassis environment

For further description of the output from the command, see the CLI Explorer.