TLDR: We cannot get S-Tag vlans to pass over the Fabric between our two VSP 7400 switches.
We have the following deployed in our network;
2 x Extreme VSP 7400 Software version 18.104.22.168
These are joined by two 100Gb cables.
ISIS is enabled
ISIS Spbm 1
The Fibre provider port is Flex-uni enabled and Encapsulation Dot1Q
The Router uplink is Flex-uni enabled and Encapsulation Dot1Q
As a side note we tried removed Encapsulation Dot1Q and it made no difference.
We have a fibre provider that is handing services over as S-Tags.
Currently over this setup we are able to pass C-Tags but cannot pass S-Tags.
We can learn MAC address entries when using S-Tag on both switches across the I-SID but not on the edge devices these VLANS terminate onto.
Configuration we tried to get it working:
Switch 1 - Where fibre provider plugs into
Create I-SID 1000
c-vid 1000 port 1/1 (Fibre provider)
Switch 2 - Where the uplink Router plugs into
Create I-SID 1000
c-vid 1000 port 1/5 (uplink to Router)
This does not work unfortunately, if we drop the S-Tag identifier we can learn MAC addresses and push L3 traffic across.
Things we have tried alternative to config changes:
Deployed additional 2 x Extreme VSP 7400s and upgraded them to Software version 22.214.171.124
Even on this version we cannot get it working.
I have followed this thread and downloaded the PDF and according to that we are doing everything correctly:
Solved! Go to Solution.
We have a GTAC case opened.
If you are following everything according to Ludovico’s document, it should work.
I followed this to the T same firmware and configuration, it did not work sadly.
Will see what GTAC comes back with, thanks for the replies.
Obviously I can’t debug your case here. If you are following everything according to Ludovico’s document, it should work, otherwise I suggest to open a GTAC case. This is not the first time an S-TAG is transported over an SPB fabric.