Monday, November 17, 2008

MPLS VPNs and VRF Export Map Complete

The Export Map allows much more granular control over which networks get advertised to which vpnv4 prefixes. There's a great example at http://www.cisco.com/en/US/docs/ios/mpls/command/reference/mp_e1.html#wp1012602

I learned a bit more about the order of operations of MPLS during this exercise. I mistakenly forgot to import the route-targets on R3. During troubleshooting, I noticed that the routes that were supposed to be imported were not present in sh ip bgp vpnv4 all. Apparently this table does not get populated until the specific route-targets are imported by a vrf.

1 comment:

Anonymous said...

You can use the command "no bgp default route-targer filter" and you will be able to see the routes using "sh ip bgp vpnv4 all" command