TL-WDR4300, AR8327, Q-in-Q and OpenFlow?

Hardware Questions and Recommendations
1

I'm interesting in using OpenFlow 1.3 (with Faucet SDN controller) on OpenWrt. I currently have a TL-WDR4300 router which I have tried using with OpenVSwitch and the Faucet SDN controller. I would need to use Q-in-Q or stacked VLANs but the switch (AR8327) discards VLAN tags it doesn't recognize which means you can't have trunk ports without preconfiguring the VLAN tags in UCI.

Is there a way to use Q-in-Q or stacked VLANs on TL-WDR4300 (AR8327) that I'm not aware of?

Or are there other routers with switch chips that support Q-in-Q
or stacked VLANs? If that's not the case then I would need to buy an external switch with Q-in-Q support. Any recommendations?

2

I think that swconfig is in conflict with Open vSwitch and maybe that's your problem

3

What conflict are you referring to? There shouldn't be any since Open vSwitch AFAIK doesn't support the switch chip (or swconfig). That lack of support is also the reason I would need to use stacked VLANs which unfortunately AR8327 doesn't seem to support.

4

from brief datasheet:
https://wikidevi.com/files/Atheros/specsheets/AR8327_AR8327N.pdf

Full VLAN support including QinQ and VLAN tag insertion and removal, with IVL and SVL

full programing guide

UCI uses swconfig to create vlan interfaces, I think a developer with experience on ar devices can help you, maybe @981213