Adding a description to an interface on a Cisco device does not provide additional functionality. However, this is useful for administrative purposes because it helps you to better understand the function of the interface. A description of an interface is important locally and can have up to 240 characters. It can be configured with the description command from the interface sub-mode:
DEVICE (Config) Interface Fa0 / 1
DEVICE (config-if) Description WAN to London
Configuration example:
Description of commands
The description appears in the result of the show running-config command:
Show the description of the current configuration.
To delete the description, use the interface mode command "No description" (or the abbreviation "no desc"):
command without description
DEVICE (Config) Interface Fa0 / 1
DEVICE (config-if) Description WAN to London
Configuration example:
Description of commands
The description appears in the result of the show running-config command:
Show the description of the current configuration.
To delete the description, use the interface mode command "No description" (or the abbreviation "no desc"):
command without description