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

Robert Raszuk <robert@raszuk.net> Mon, 24 October 2016 18:17 UTC

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From: Robert Raszuk <robert@raszuk.net>
Date: Mon, 24 Oct 2016 20:17:48 +0200
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To: heasley <heas@shrubbery.net>
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Cc: IETF IDR WG <idr@ietf.org>, Susan 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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You still could do that.

You overload last octet with exact action you need just like you do today
with 1997.

Three sets of 4 octets with no semantics still requires curret way to
advertise what action given community means at any target ASN.

Best,
R

Ps. Besides adding 4 more octets to leave current LC as is just to be able
to avoid anonymous injections seems to me like very little price as
compared with befit. But I guess am alone with that point of view here.

On Oct 24, 2016 2:08 PM, "heasley" <heas@shrubbery.net>; wrote:

> Sat, Oct 22, 2016 at 03:53:05PM +0200, Robert Raszuk:
> > You are mixing SRC_ASN with TARGET_ASN in the same field.
>
> I want to point-out that by forcing the first field to be "src_asn" as
> you are suggesting, would make one intended use of -large- not possible,
> for ASN1 to tell ASN2 to do something with a route as it applies to ASN3.
> eg: ASN2:ASN3:action, ie: apply "action" (such as prepend) defined by ASN2
> to ASN1's route when advertised to ASN3.
>
> > Yes RFC1997 works like that but here we have opportunity to improve it.
>
> We have improved it.
>