I have an AS with two route reflectors within the same cluster ID that each peer with all other PEs. Two of these PEs (neither are route reflector) have a NNI opt B with another AS. Currently we only have two VPNs that cross the recently configured NNIs. One of them have VRFs on both the NNI PEs and this seems to work perfectly. The other VPN has no VRF on either NNI PE and this seems to work fine on one but not the other. It seems that both RRs are sending the routes to the working NNI PE but not the other.
I have checked that both NNI PEs are sending requests for the route target to the RRs using the below command which they both are.
show route table bgp.rtarget.0 advertising-protocol bgp 10.11.12.1
show route table bgp.rtarget.0 advertising-protocol bgp 10.11.12.2
I have also checked that both RRs are receiving the route target values from the NNI PEs using the below command which they both are.
show route table bgp.rtarget.0 receive-protocol bgp 10.11.12.11
show route table bgp.rtarget.0 receive-protocol bgp 10.11.12.12
After significant checking, I can see no differences in the two RRs or the two NNI PEs e.g. configuration, model, Junos, etc.
If anyone has any ideas I would be most grateful. Thanks for reading.
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Paul Herbert
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