[c-nsp] Segment Routing (SR)

[Mark Tinka]

On Tuesday, August 13, 2013 11:07:07 AM Adam Vitkovsky 
wrote:

> I'd like the BGP-LS to take over that role, with BGP-LS
> as IGP you would not need to worry about scalability, so
> you could still have a separate area (AS in case of
> BGP-LS) per each aggregation island for administrative
> purposes, however you could pass full SR information
> into core AS and other aggregation island. So there
> would be no need for yet another level of abstraction
> i.e. RFC3017 and/or Opt.C.
> 
> Also as we had the discussion about MPLS on the CPE
> devices, in case of BGP-LS in the role of IGP&LDP you
> could control specifically which prefixes and labels you
> accept into your LSDB.

I don't dispute that BGP as a potential IGP will scale (look 
at iBGP today), but will it be quick? That's my concern.

Then again, the BGP-LS draft is looking at extending the 
domain for TE, but who knows how quickly this will morph.

Mark.
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