[c-nsp] iBGP as MPLS labeling protocol

[adamv0025 at netconsultings.com]

Hi Daniel,

> Daniel Verlouw
> Sent: Wednesday, January 04, 2017 9:25 PM
> 
> Hi Adam,
> 
> On Wed, Jan 4, 2017 at 11:35 AM,  <adamv0025 at netconsultings.com> wrote:
> > And this is the tricky part cause you might run into bugs with
> > next-hop-self on iBGP session in combination with RFC3107 (no one tests
> this).
> 
> why do you think this is an issue? Or why is it any different from setting NHS
> on a labeled route which is propagated from eBGP to iBGP?
> It's frequently used when propagating BGP-LU throughout different domains
> in a Seamless MPLS network, which is supported (and tested) by all the big
> vendors.
> 
You're right, I totally  forgot about hierarchical MPLS in Intra-AS deployments, indeed in these models the ABRs are configured as RRs doing NHS (next-hop self) when relying routes.
So yeah there you have it, it's supported solution :) though a bit tricky one. 

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