Configure descriptions in IOS

Adding a description to a port doesn’t provide any extra functionality, but it is useful for administrative purposes, since it will help you to remember the port function. A description of an interface is locally significant and can be up to 240 characters long. It can be set using the description command from the interface submode:

  • DEVICE(config) interface Fa0/1
  • DEVICE(config-if) description WAN to London

description command

The description is displayed in the output of the show running-config command:

show running config description

To erase the description, use the no description interface mode command (or the shortcut no desc):

no description command

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