Switching

tried the same setup with Catalyst 9300 subinterface for termination and it works. guess it's down to individual module's limitation. as for using one PE for both double tagging and L2VPN encapsulation, it is still not feasible in IOS XE devices as ...

Not really sure that a dual tagged interface can be terminated on an EX, actually... ------------------------------ Olivier Benghozi ------------------------------

this is the config i use in my EX4000 for termination. not sure why the IP address is not reachable from the CE. unit 5003 { description "Dual tagged IP whatever"; vlan-tags outer 3003 inner 1; family inet { ...

In our deployments we have an MX as PE with a QFX as QinQ multi-socket for smaller speeds. Some trunks plugged on the QFX have hundreds of vlans, so QinQ allows to keep this completely transparent from the QFX PoV. Some other vlans are single tag. An ...

that's right. strangely when i use an EX switch's subinterface for NPE, the CE cannot reach it through the UPE. not sure if that's the product limitation of EX series. i also see routers like MX can also configure the exact commands as EX for double ...

About subinterface to configure Q-in-Q matching , y ou mean terminating a double tagged vlan (or switching it to some EoM tunnel)? On PTX and MX, yes. ------------------------------ Olivier Benghozi ------------------------------

after some more testing, i've found that the NPE behind the UPE (switches) do not seem to match the tags properly. when i configure the NPE to match the S- and C-VID as below, even if they don't match, traffic can still go through. root# show interfaces ...