[j-nsp] 6PE RR & next-hop resolution best practices

[Ivan Ivanov]

Hi Adam,

I am not sure if your solution will do the job. Do you have this in
production?

Table bgp.inet6.0 is a IPv6 table of routing-instance called 'bgp' or?

Routes from label-unicast inet6 family are put in inet6.0 table not in
bgp.inet6.0.

James will confirm that after he tests it. It might be that I am wrong.

Ivan,

On Mon, May 18, 2015 at 7:24 AM, Adam Vitkovsky <Adam.Vitkovsky at gamma.co.uk>
wrote:

> Hi James
>
> > James Jun
> > Sent: 16 May 2015 16:20
> >
> > The problem however is that I'm using the P's also as route-reflectors
> for
> > distributing BGP throughout the network.  So, I need the RR's to make
> > correct BGP best-path decisions, but they can't do that on 6PE routes
> without
> > having inet6.3 table to reference the ipv4-mapped-in-v6 next-hops
> against.
> >
> I'm sorry I misunderstood the problem so the problem isn't that the P's
> are trying to do IPv6 lookup instead of label-switch the packets between
> PEs but the problem is that RRs are not advertising the IPv6 prefixes
> because they can't select the best paths so the IPv6 prefixes are not being
> exchanged between the PEs right?
>
> To resolve the NHs you can do:
> set routing-options rib-groups 0-to-6 import-rib inet.0
> set routing-options rib-groups 0-to-6 import-rib inet6.0
> set routing-options rib-groups 0-to-6 import-policy loopbacks
>
> set protocols isis/ospf rib-group inet 0-to-6
>
> This should create the ipv4-mapped-in-v6 (ffff::ipv4) addresses in inet6
> And then you tell BGP to resolve the NHs in inet.6:
>
> set routing-options resolution rib bgp.inet6.0 resolution-ribs inet6.0
>
>
> adam
>
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-- 
Best Regards!

Ivan Ivanov