Re: [Idr] Vendor Defaults (was Re: Review of draft-ietf-large-community-06.txt)

Gert Doering <gert@space.net> Mon, 07 November 2016 12:10 UTC

Return-Path: <gert@space.net>
X-Original-To: idr@ietfa.amsl.com
Delivered-To: idr@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0695B1295D5 for <idr@ietfa.amsl.com>; Mon, 7 Nov 2016 04:10:10 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.097
X-Spam-Level:
X-Spam-Status: No, score=-4.097 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, RP_MATCHES_RCVD=-1.497] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ijzi81m1cTbJ for <idr@ietfa.amsl.com>; Mon, 7 Nov 2016 04:10:08 -0800 (PST)
Received: from mobil.space.net (mobil.space.net [IPv6:2001:608:2:81::67]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 42257129471 for <idr@ietf.org>; Mon, 7 Nov 2016 04:10:07 -0800 (PST)
X-Original-To: idr@ietf.org
Received: from mobil.space.net (localhost [IPv6:::1]) by mobil.space.net (Postfix) with ESMTP id 7EECF606F3 for <idr@ietf.org>; Mon, 7 Nov 2016 13:10:05 +0100 (CET)
X-SpaceNet-Relay: true
X-SpaceNet-Relay: true
X-SpaceNet-Relay: true
X-SpaceNet-Relay: true
X-SpaceNet-Relay: true
Received: from moebius4.space.net (moebius4.space.net [IPv6:2001:608:2:2::251]) by mobil.space.net (Postfix) with ESMTP id 24F8760645; Mon, 7 Nov 2016 13:10:05 +0100 (CET)
Received: by moebius4.space.net (Postfix, from userid 1007) id 211DD45ECC; Mon, 7 Nov 2016 13:10:05 +0100 (CET)
Date: Mon, 7 Nov 2016 13:10:05 +0100
From: Gert Doering <gert@space.net>
To: "Jakob Heitz (jheitz)" <jheitz@cisco.com>
Message-ID: <20161107121005.GS79185@Space.Net>
References: <CAH1iCiq6jNtnkta0Bt952EQ9zOKSGt=_cCySsT5XuOKuHYO2nQ@mail.gmail.com> <86860386-9C2B-4BD5-B457-2A6DA5446CF3@cisco.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <86860386-9C2B-4BD5-B457-2A6DA5446CF3@cisco.com>
X-NCC-RegID: de.space
User-Agent: Mutt/1.6.1 (2016-04-27)
Archived-At: <https://mailarchive.ietf.org/arch/msg/idr/Phvi-YIA_Jdj8MvRzgUxP0wgNsM>
Cc: heasley <heas@shrubbery.net>, "idr@ietf.org" <idr@ietf.org>, Robert Raszuk <robert@raszuk.net>
Subject: Re: [Idr] Vendor Defaults (was Re: Review of draft-ietf-large-community-06.txt)
X-BeenThere: idr@ietf.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: Inter-Domain Routing <idr.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/idr>, <mailto:idr-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/idr/>
List-Post: <mailto:idr@ietf.org>
List-Help: <mailto:idr-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/idr>, <mailto:idr-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 07 Nov 2016 12:10:10 -0000

Hi,

On Sat, Nov 05, 2016 at 11:13:46PM +0000, Jakob Heitz (jheitz) wrote:
> IOS-XR does not send communities or extended communities to eBGP neighbors by default.
> To send communities, you need to configure
>   send-community-ebgp
> Under the neighbor address-family.
> To send extended communities, you need to configure
>   send-extended-community-ebgp

This would work for our use case - "1997 and large" is "the standard
community to be sent to upstreams and customers", while "extended" is
"something special, only to used in particular cases".

I consider "large" to be "the logical extension to 1997", so I do not
see a reason to operationally differenciate here ("1997-only" or 
"large-only").

[..]
> In my large-community code, I have lumped them under send-community-ebgp. 

Works for us.

Gert Doering
        -- Operator, some exposure to BGP in the past
-- 
have you enabled IPv6 on something today...?

SpaceNet AG                        Vorstand: Sebastian v. Bomhard
Joseph-Dollinger-Bogen 14          Aufsichtsratsvors.: A. Grundner-Culemann
D-80807 Muenchen                   HRB: 136055 (AG Muenchen)
Tel: +49 (0)89/32356-444           USt-IdNr.: DE813185279