[j-nsp] Subject: RE Route target configuration for L2VPN route instance

Sergio D. sdanelli at gmail.com
Mon Jul 9 12:52:01 EDT 2007


If you explicitly apply an import or export community it overrides
vrf-target <community> this is why 100:3 doesn't take effect.

http://www.juniper.net/techpubs/software/junos/junos83/swconfig83-vpns/id-10179289.html#id-10179289

-- 
Sergio Danellli
JNCIE #170


RFC 4761, Section 3.1.2: As it has been assumed that VPLSs are fully meshed,
a single Route
  Target RT suffices for a given VPLS V, and in effect that RT is the
  identifier for VPLS V.

But juniper allows configuring more than one route targets (See the
example below). But with the below configuration, if a L2VPN NLRI with route
target 100:3 is received, it does not associate the received NLRI to the
VPLS instance. Is it a bug in Juniper? In which scenario, we will need more
than one route target ?

instance-type vpls;
interface fe-0/3/1.0;
route-distinguisher 100:3;
vrf-target {
   target:100:3; --> Both import and export
   import target:100:5;
}
protocols {
   vpls {
       site-range 10;
       site vplsSiteA {
           site-identifier 6;
           interface fe-0/3/1.0;
       }
   }
}

Regards,
Monika


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