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Re: [Idr] IPR in draft-ietf-idr-bgp-optimal-route-reflection-14 [was: Re: WGLC for draft-ietf-idr-bgp-optimal-route-reflection-14]

Robert Raszuk <robert@raszuk.net> Tue, 17 October 2017 07:16 UTC

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From: Robert Raszuk <robert@raszuk.net>
Date: Tue, 17 Oct 2017 09:16:04 +0200
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To: Randy Bush <randy@psg.com>
Cc: "Serpil Bayraktar (serpil)" <serpil@cisco.com>, Kevin Wang <kfwang@juniper.net>, idr wg <idr@ietf.org>
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Subject: Re: [Idr] IPR in draft-ietf-idr-bgp-optimal-route-reflection-14 [was: Re: WGLC for draft-ietf-idr-bgp-optimal-route-reflection-14]
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Hello Randy,

On Tue, Oct 17, 2017 at 12:56 AM, Randy Bush <randy@psg.com> wrote:

> robert,
>
> i am becoming more confused.  (no snark needed :)
>
> the document refs 2119 (which has been replaced, btw) but does not seem
> to use MUST et alia.  is this document informational or standards track?
>

​The way I see the docs there are MUSTs and SHOULDs ...

​   ​
 However, the solutions
*​​MUST NOT* prevent
   reflecting more than one optimal path to the client as path diversity
   may be desirable for load balancing or fast restoration.  In cases
   where add-path and optimal route reflection are configured together,
   the route reflector
*​​MUST* reflect n optimal paths to a client, where n

   is the add-path count.​


​Point taken that some SHOULDs are lower case - will fix.


As far as 2119 replacement happy to update too.


​Last I kept standards track as base BGP RFC or RR RFC is not really
allowing policy based

best path selection on RRs. He we are clearly introducing such
possibility. So while no new

bits in BGP protocol are introduced BGP behavior can be considered
departure/extension

of current
standard. However to me personally it can be informational or even
BCP. I am happy to adjust

it per WG and chairs direction.


Thx,
Robert

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