Hello, I need to interconnect two L2 domains. I was planning to use a me3600 for this :
interface port-channel 1 ... service instance 1439 ethernet encapsulation dot1q 1439 second-dot1q 1-4094 rewrite ingress tag pop 1 bridge-domain 1439 ! service instance 1440 ethernet encapsulation dot1q 1440 second-dot1q 1-4094 rewrite ingress tag pop 1 bridge-domain 1439 ! Works fine, hosts on same C-VLAN on both sides of bridge-domain can ping. As I need my interconnection to be STP-transparent, I tried to add "l2protocol forward stp" on these 2 EVCs. This resulted in side effects on my backbone, and I saw STP events on the other side of my port-channel (n3k switch) : 2020 Dec 8 06:32:37 N3K-eqx-pa3-1 %STP-2-BLOCK_PVID_LOCAL: Blocking port-channel1 on MST0000. Inconsistent local vlan. Question : why is the port-channel affected by l2protocol forward on an EVC ? I guess I'll have to remove the "second-dot1q 1-4094" to allow untagged trafic on EVCs, and make L2CP work correctly. Is this the right way to do ? Thanks for your help. Regards, Cédric _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
