[c-nsp] Internal MP-BGP

[Chris Evans]

What is your Igp? Ldp needs an igp to function properly or else you need bgp
to do the label exchange for you which I think only works on ebgp.

Look at the mpls label bindings and see I'd they are being setup properly.
On Feb 13, 2011 7:34 AM, "marc williams" <marcuk at me.com> 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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