Re: [sidr] Protocol Action: 'BGP Prefix Origin Validation State Extended Community' to Proposed Standard (draft-ietf-sidr-origin-validation-signaling-11.txt)

"Jakob Heitz (jheitz)" <jheitz@cisco.com> Sat, 04 March 2017 04:40 UTC

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From: "Jakob Heitz (jheitz)" <jheitz@cisco.com>
To: Chris Morrow <morrowc@ops-netman.net>, Randy Bush <randy@psg.com>
Thread-Topic: [sidr] Protocol Action: 'BGP Prefix Origin Validation State Extended Community' to Proposed Standard (draft-ietf-sidr-origin-validation-signaling-11.txt)
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Date: Sat, 4 Mar 2017 04:40:03 +0000
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Cc: "draft-ietf-sidr-origin-validation-signaling@ietf.org" <draft-ietf-sidr-origin-validation-signaling@ietf.org>, "sandy@tislabs.com" <sandy@tislabs.com>, "sidr-chairs@ietf.org" <sidr-chairs@ietf.org>, "sidr@ietf.org" <sidr@ietf.org>
Subject: Re: [sidr] Protocol Action: 'BGP Prefix Origin Validation State Extended Community' to Proposed Standard (draft-ietf-sidr-origin-validation-signaling-11.txt)
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   However it SHOULD be possible to
   configure an implementation to send or accept the community when
   warranted.  An example of a case where the community would reasonably
   be received from, or sent to, an EBGP peer is when two adjacent ASes
   are under control of the same administration.  A second example is
   documented in [I-D.ietf-sidr-route-server-rpki-light].

Thanks,
Jakob.

> -----Original Message-----
> From: Chris Morrow [mailto:morrowc@ops-netman.net]
> Sent: Friday, March 03, 2017 8:38 PM
> To: Randy Bush <randy@psg.com>
> Cc: Jakob Heitz (jheitz) <jheitz@cisco.com>om>; Chris Morrow <morrowc@ops-netman.net>et>; Montgomery, Douglas (Fed)
> <dougm@nist.gov>ov>; Alvaro Retana (aretana) <aretana@cisco.com>om>; draft-ietf-sidr-origin-validation-signaling@ietf.org;
> sandy@tislabs.com; sidr-chairs@ietf.org; sidr@ietf.org
> Subject: Re: [sidr] Protocol Action: 'BGP Prefix Origin Validation State Extended Community' to Proposed Standard
> (draft-ietf-sidr-origin-validation-signaling-11.txt)
> 
> At Sat, 04 Mar 2017 13:36:05 +0900,
> Randy Bush <randy@psg.com> wrote:
> >
> > > The ext-comm may come from an ebgp neighbor.
> 
> ebgp neighbor? the text talks about ibgp, and about explicitly ignoring ebgp senders of this community (by default).
> 
> right?
> 
> >
> > ok.  saves a character.  my kind of change :)
> >
> >   "Similarly, a receiving BGP speaker, in the absence of validation
> >    state set based on local data, SHOULD derive a validations state from
> >    the last octet of the extended community, if present."
> >
> > randy