[c-nsp] Internal MP-BGP

[marc williams]

Its actually working as it should. the PE internal loopbacks are not reachable from within the VRF.  traceroute vrf name shows routes to external destinations works across asr2/1.
So i had it configured right. :-)

On 13 Feb 2011, at 12:26, marc williams wrote:

> setup:
> 
> asr1-----asr2
> 
> both act as PE routers doing back to back BGP/VRF to customers. they also act a P routers facing each other.
> Currently have an ibgp session per vrf between asr1-asr2 to learn external routes between asr's.
> 
> Moving to MP-BGP between asr1/2. mpls and ldp session active between asr1/2 via a vlan/connected /30.  
> BGP VPNv4 setup and active with next hop self and update source looback0.
> show ip bgp vpnv4 vrfname shows the external routes from asr1 are being learnt on asr2.
> 
> problem i have is asr2 cannot ping asr1 loopback within a vrf.  so packets to external asr1 routes get blackholed.
> 
> on asr2:
> show ip bgp vpnv4 vrf name shows the route from asr1 is learnt and is preferred.
> show ip route vrf name shows the route correctly with next hop of loopback of asr1
> show ip cef vrf name shows the next of of the route is the connected /30
> that connected /30 isnt in the cef vrf table.
> 
> My understanding is that shouldn't be an issue as we should be label switching.
> Any ideas?
> 
> --
> Marc
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