[c-nsp] BGP-ORR vRR/IOS-XRv

[Curtis Piehler]

Sorry I should have been more clear.  I know RRs in general need to be
fully meshed but from a BGP ORR perspective does anything change that?
Also in a BGP ORR environment do all clients need to connected to all vRRs
as long as the vRRs are fully meshed?

On Mar 21, 2018 6:42 PM, "Mark Tinka" <mark.tinka at seacom.mu> wrote:



On 18/Mar/18 22:20, Curtis Piehler wrote:


BGP-ORR looks to be an attractive technology to utilize instead of full
meshing many standard RRs.  I was hoping people could share some insight on
this topic since there is not so much real world scenarios out there
documented.  This is geared towards an IOS-XRv ASR9K deployment.


I have no ORR experience yet since it's not yet supported in CSR1000v.
However, I don't think ORR creates an opportunity not to fully mesh RR's.

The idea around ORR is to allow RR clients to enjoy a "localized" view of
the route (IGP metric, to be exact) despite where the RR they have an iBGP
session with is physically located. This does not negate the need to fully
mesh the RR's.


Mark.