[j-nsp] VPLS route reflection

[James Jun]

Hey all,

So, I've been trying to google for some sample configuration of BGP-signalled VPLS setup using route-reflectors, and having some trouble finding one.  All of the sample BGP-signaled examples on Juniper site are using full-mesh iBGP between PE's with no RR's in the middle.


A pretty simple and straight-forward iBGP topology like this, that we're all used to in a typical SP network:

 CE -- PE (rr client) ----- P (route-reflector) ------ P (route-reflector ) ----- PE (rr client) -- CE


So, lacking any config examples, I've just enabled 'family l2vpn signaling;' on existing iBGP sessions that are using the above topology.
Unfortunately, the route-reflector / P-router does not reflect the route received from PE and vice versa -- it is behaving like non-RR client peer that wants full mesh.

When viewing bgp.l2vpn.0 RIB, routers can only see l2vpn NLRI's received from directly configured / meshed peer, but cannot see thru a route-reflector (i.e. P router cannot see NLRIs from a PE that's attached thru another P serving as route-reflector).  Please note that unicast inet.0 and inet6.0 RIBs are also carried by same iBGP session transports across the topology -- and those routes obviously work flawlessly using route-reflectors.


Setup looks like this on a P router:

bgp {
  group teh-core {
    type internal;
    family inet {
      unicast; 
    }
    family inet6 {
      unicast; 
    }
    family l2vpn {
      signaling; 
    }
    export mp64-ibgp-export-policy;
    peer-as 64552;
    neighbor 10.0.0.2 {
      description core1.lab2;
    }
    neighbor 10.0.0.3 {
      description core1.lab3;
    }
  }

  group PE-edge-routers__RR-clients {
    type internal;
    family inet {
      unicast; 
    }
    family inet6 {
      unicast; 
    }
    family l2vpn {
      signaling; 
    }
    export mp64-ibgp-export-policy;
    cluster 10.0.0.1;
    peer-as 64552;
    neighbor 10.0.1.1 {
      description edge1.lab1;
    }
    neighbor 10.0.1.2 {
      description edge2.lab1;
    }
  }

}


Thanks in advance! 
james