Network Interface Question

[fals3illusion]

I upgraded my PVE server today and it did that thing where it upgraded and changed the interface name. it changed from enp14s0f0np0 TO enp13s0f0np0 . When logging in my PiKVM and trying to check and change what my interface changed to I couldnt see the screen because there were so many different interfaces and could not scroll up on the page with Shift+PageUp or anyhting.

When I used ip a to check the interfaces there were a total of 52 interfaces, but I only have 3 physical interfaces..

There were a bunch of veth100i0@if2. (Which I found out was virtual interface for my LXC's)
There were a bunch of tap111i0 (Which I found out was my virtual interface for my VM's)

2: eno1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 state UP group default qlen
3: enp13s0f0np0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP group default
4: enp13s0f1np1: <NO-CARRIER,BROADCAST,MULTICAST,SLAVE,UP> mtu 1500 qdisc mq master bond0 state DOWN group

Is there a way to see all of my PHYSICAL INTERFACE names only?

Is there a way I can link these names to conistantly stay the same?

Thanks for any help!

 

[B.Otto]

I upgraded my PVE server today and it did that thing where it upgraded and changed the interface name. it changed from enp14s0f0np0 TO enp13s0f0np0 . When logging in my PiKVM and trying to check and change what my interface changed to I couldnt see the screen because there were so many different interfaces and could not scroll up on the page with Shift+PageUp or anyhting.

When I used ip a to check the interfaces there were a total of 52 interfaces, but I only have 3 physical interfaces..

There were a bunch of veth100i0@if2. (Which I found out was virtual interface for my LXC's)
There were a bunch of tap111i0 (Which I found out was my virtual interface for my VM's)

You could pipe the output to a reader like less, so you can scroll: ip a | less
Or you could use one of the modifiers shown in man ip, like ip -br a.

Is there a way to see all of my PHYSICAL INTERFACE names only?

I dont know if there is a way to show the physical interfaces only, but according to the docs the Ethernet devices always start with 'en' or 'eth'. So you could grep for lines that start with one of those two keywords:

ip -br a | grep -E '^en.*|^eth.*'

Is there a way I can link these names to conistantly stay the same?

You can configure a systemd link file that assigns the name according to the MAC address, as shown in "Overriding network device name" here:
https://pve.proxmox.com/wiki/Network_Configuration#_naming_conventions