1

If I have three routers R1, R2, and R3 that are interlinked, then when configuring, do I have to give the command:

description Link to R2
description Link to R3

when configuring R1?

  • 6
    Those are just descriptions to help you identify what the port is used for. It doesn't actually do anything. – Jesse P. May 12 '19 at 21:55
4

A router will function the same with or without interface descriptions. It is a very good practice to add interface descriptions because that can help you later on when you have forgotten how you connected things. It is a good habit to develop.

Also, when you ask for help from someone not familiar with your network (such as here), having descriptions on the interfaces will go a long way.

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