Hi,
Today I stumbled on an issue which I am not sure how to resolve and if it can be resolved at all.
Let's say I have two CRS305 switches which are connected to sfp-plus2 to each other and are sending tagged frames with VLAN 200.
I also have two CPEs that are each connected to sfp-plus1 on each one of the switches.
Those two CPEs must communicate with each other over ANY vlan (e.g. each CPE has configured VLAN 120 and VLAN 150), which means the switches should be able to capture tagged frames on input (C-tag), transport them over VLAN 200 (S-tag), and drop the s-tag on output.
This is easily done with any RB router. you just create a VLAN interface on your WAN interface (in this case towards the other switch) and bridge that VLAN interface with the physical LAN interface (in this case towards the CPE).
However, that does not seem to be the case with CRS305.
I followed the wiki (https://wiki.mikrotik.com/wiki/Manual:I ... 8Q-in-Q.29) and it does not work.
Any ideas as to why? Is it a config problem or is it simply not possible on the CRS305 switch?