Does VRF Creates Separate LIB ?

[Ali Norouzi]

Hello Engineers,

I have a question about VRF behavior with LIB. Does VRF creates separate LIB like routing table? VRF seprates routes from global routing table completely and advertise it to its peers by dynamic routing. I wanted to do same with LDP and advertise lables from VRF seprate from other lables in other instances like global instance. Please take a look at attached file. As you see Router2 has a VRF A and connected to Router3 and Router4 from that VRF. I want to enable MPLS and LDP on that VRF so the lables be advertised between all these routers in VRF A. After deploying this topology I found that Router 2 just learns lables from its neighbours (Router2,3) but doesn't advertise its own lables to them. So labled traffic from Router 3 to Router 4 couldn't pass through Router2. I saw same behaviour with Juniper routers.

[Nagendra Kumar Nainar]

Ali,

On a quick look, I dont see any reason why it should not advertise. Infact, CsC works this way. Your scenario is similar to have 2 different CE connected to same PE. So per my understanding it should work.

Can you check if R2 have local binding for those prefixes?.

-Nagendra