How to enumerate DSA port names?

[Lucky1]

there was a change with lots of MT7621's where they removed the wan from the switch
this may shed some light on a change you may be seeing

2 Gbps WAN/LAN NAT Routing on ramips MT7621 devices

18th of April 2023 Update Here is some information to prevent repeat questions directed at me. This won't be on 22.03, only newer versions will have it as the patch was made at that time frame, and there's no need to spend time and effort backporting to older versions. For the devices listed under the "RGMII2 pins are used with an external phy on these:" and "RGMII2 pins are used as GPIO on these:" lists, the feature will work with changes on the devicetree of the said device, except some rare…