When dealing with DSA on Linux the interface are named in following way (in my case on ARM64 platform - BPI-R64):
- wan
- lan1
- lan2
- lan3
- lan4
When I perform show interface in VyOS I'm seeing only:
vyos@vyos:~$ show interfaces Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down Interface IP Address S/L Description --------- ---------- --- ----------- br0 - u/D br0.100 - u/D eth0 - u/u lan1 - u/u lan2 - u/D lan3 - u/D lan4 - u/D lo 127.0.0.1/8 u/u ::1/128 wlan0 - A/D
wan interface seems to be missing. I believe it should be visible also as an ethernet interface.