Ethernet Interfaces

Created by Yuriy Andamasov, Modified on Thu, 11 Jan at 11:10 AM by Srividya Anantapatnaikuni

Article review date	2024-01-08
Validated for VyOS versions	1.2.5, 1.3.5, 1.4.0, 1.5.x

Ethernet interfaces allow for the configuration of speed, duplex, and hw-id (MAC address). Below is an example configuration:

vyos@vyos-rtr# set interfaces ethernet eth1 address '192.168.0.1/24'
vyos@vyos-rtr# set interfaces ethernet eth1 description 'INSIDE'
vyos@vyos-rtr# set interfaces ethernet eth1 duplex 'auto'
vyos@vyos-rtr# set interfaces ethernet eth1 speed 'auto'

Resulting in:

   ethernet eth1 {
       address 192.168.0.1/24
       description INSIDE
       duplex auto
       hw-id 00:0c:29:44:3b:19
       smp_affinity auto
       speed auto
   }

In addition, Ethernet interfaces provide the extended operational commands show interfaces ethernet physical and show interfaces ethernet statistics. Statistics available are driver dependent.

vyos@vyos:~$ show interfaces ethernet eth0 physical
Settings for eth0:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Full 
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Full 
        Advertised pause frame use: No
        Advertised auto-negotiation: Yes
        Speed: 1000Mb/s
        Duplex: Full
        Port: Twisted Pair
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: on
        MDI-X: Unknown
        Supports Wake-on: d
        Wake-on: d
        Current message level: 0x00000007 (7)
        Link detected: yes
driver: e1000
version: 7.3.21-k8-NAPI
firmware-version: 
bus-info: 0000:02:01.0
vyos@vyos:~$ 
vyos@vyos:~$ show interfaces ethernet eth0 statistics 
NIC statistics:
     rx_packets: 3530
     tx_packets: 2179
[... ]