Hi.
I have a labbed BGP-VPLS network where PE1 is connected to two CEs of the same VPLS i.e. PE1 has two CE-facing interfaces. On PE1, I would normally configure both interfaces within the same site (A) as follows:
set routing-instances VPN-A protocols vpls site A site-identifier 1set routing-instances VPN-A protocols vpls site A interface lt-0/0/0.2set routing-instances VPN-A protocols vpls site A interface lt-0/0/0.4But I could also have each CE-facing interface in separate sites (A and B) within the same routing instance as follows:
set routing-instances VPN-A protocols vpls site A site-identifier 1set routing-instances VPN-A protocols vpls site A interface lt-0/0/0.2set routing-instances VPN-A protocols vpls site B site-identifier 4set routing-instances VPN-A protocols vpls site B interface lt-0/0/0.4This prompts PE1 to send a second BGP advertisement for the site B, which everyone else seems to ignore (based on the fact they they don't install a second pseudowire label to sent traffic towards PE1.. they still use the first pseudowire they computed for site A to send traffic to both of PE1's CEs)
So my question is.. is there any reason to configure PE1 with a second site under the same VPLS routing-instance?
Thanks,
Deepak