[j-nsp] Dynamic route leaking between global routing table and vrf routing table

Mark Meijerink mark.meijerink at sara.nl
Fri Apr 3 08:47:16 EDT 2009

Hi there,

I have been working on dynamic leaking of routes between the global routing table and the vrf routing table based on communities. But I have failed to
make it work. I have already seen multiple examples but those did not work for me. I will give s short description of what we are trying to achieve
and I hope you can point me in the right direction.

In the global routing table we have our peerings with AMS-IX peers and iBGP peerings with two core routers. The AMS-IX routes are given a certain
community. We want to create a vrf with customers which only have AMS-IX connectivity. So we want to dynamically leak routes into the vrf based on the
community. In the vrf we have BGP sessions with the customers and the routes we learn from them are tagged with a certain community as well. These
routes must be dynamically leaked into the global routing table. We are looking for a way to dynamically leak routes in two directions.

I have tried using rib-groups and tried to make it work using the vrf-import and vrf-export policies. Could you please let me know how I can make the
setup as explained above work. The difficulty we are introducing is that we want to leak dynamically and not static. Thanks in advance for your reply
and advice.

 Mark Meijerink

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