Identify PHYSICAL Network Interfaces?

bake_betty

I'm working on a network automation project. I'm writing a python script that will remotely scan Ubuntu servers and network switches and then do its best to reconstruct the network's physical topology in a diagram. I think the script can do this, like so: For every Ubuntu server, make a list of the server's physical interfaces. If an interface is UP/UP, note its MAC address. For every network switch, examine all UP/UP ports that could be...

Originally asked by Pete on Stack Exchange (askubuntu) (CC BY-SA 4.0).

uphilltech

Great question — answering as the UphillTech team:

The only simple way I found using a builtin command (event on a minimal Ubuntu version) is to show the dynamically addressed interfaces with ip : ip a show dynamic You can even have with colors (which can help with all these details:) ip -c a show dynamic

Full answer by Pierre de LESPINAY: https://askubuntu.stackexchange.com/a/1526159 (CC BY-SA 4.0).

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