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Re: [Idr] WG LC on draft-ietf-idr-large-community-03.txt (10/17/2016 to 10/31/2016)

David Farmer <farmer@umn.edu> Wed, 19 October 2016 22:34 UTC

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From: David Farmer <farmer@umn.edu>
Date: Wed, 19 Oct 2016 17:34:37 -0500
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To: Nick Hilliard <nick@foobar.org>
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Cc: IETF IDR WG <idr@ietf.org>, Sue Hares <shares@ndzh.com>
Subject: Re: [Idr] WG LC on draft-ietf-idr-large-community-03.txt (10/17/2016 to 10/31/2016)
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On Wed, Oct 19, 2016 at 5:01 PM, Nick Hilliard <nick@foobar.org> wrote:

> Jeffrey Haas wrote:
> > I had thought that a BCOP document on communities was out there for BGP
> > communities in general, but "community" clutters the search engines
> > quite a bit and I'm not finding such a thing.
>
> are you thinking of rfc7454?
>
> Dave's suggestion is definitely an operational- rather than a
> protocol-level issue.  draft-ietf-idr-large-community is a protocol
> definition, so it would be better to see this in a GROW document.
>
> Nick
>

So it's slightly more than just the wire-protocol issues, it defines a
Canonical Representation.  I think that's important, but I think it's
equally important that to interoperability that implementations include
policy tools.  I included some motivation for why the tools need to be
included, but if you'd prefer to strip that out, I'd be fine with that. So
that leaves something like this;

   Implementations SHOULD provide a rich set of policy capabilities to
allow operators
   to decide which large communities are received from or propagated to
peers.


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