802.1ad (Q-in-Q) setup

[WildBoarGonnaGo]

Hello there. Is there any setup guide for Q-in-Q (802.1ad)? Tried to google it, but I only found articles with vlan setup, which is not my case. My version of OpenWRT is 22.03

[zagi-tng]

Maybe this post will help:

[SOLVED] How to use UCI to configure VLANs on a large installation?

Well, it took me some time because I was busy with other matters. But I am reporting that it works. Below is the final /etc/config/network config interface 'loopback' option ifname 'lo' option proto 'static' option ipaddr '127.0.0.1' option netmask '255.0.0.0' config switch_vlan option device 'switch0' option vlan '7' option vid '203' option ports '0t 1t' config switch_vlan option device 'switch0' option vlan '8' …

I guess just add to bridge vlan:

option vid '203.5'

5 being the "C tag" and 203 being the "S tag"

Got me thinking that this might help with "DSA roaming issues":

Broken 802.11r Fast Transition / Roaming and 5Ghz issues probably caused by DSA implementation

Hello Everyone, I want to bring up two issues that many of us have probably faced: broken 802.11r Fast Transition (Roaming) and intermittent 5GHz connection issues. After some intensive debugging, I've noticed that the common denominator for both problems appears to be the DSA implementation. After a deep dive into the system logs and configurations, I found that these problems occur primarily when VLANs are being utilized. The Issue: The issue seems to be linked to how MAC addresses age on t…

Would be like with MikroTik RouterOS CAP manager solution where there is only one VLAN between APs and AP CAP manager, and VLANs are defined on WLAN side .