IETF Logo Mail Archive

Re: [Idr] new ID on expansion of private use ASN range

Christopher Morrow <morrowc.lists@gmail.com> Wed, 04 July 2012 02:22 UTC

Return-Path: <christopher.morrow@gmail.com>
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 7E5D411E80AE for <idr@ietfa.amsl.com>; Tue, 3 Jul 2012 19:22:32 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -103.599
X-Spam-Level:
X-Spam-Status: No, score=-103.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1, USER_IN_WHITELIST=-100]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Q+i-sgAC6ZpO for <idr@ietfa.amsl.com>; Tue, 3 Jul 2012 19:22:32 -0700 (PDT)
Received: from mail-ob0-f172.google.com (mail-ob0-f172.google.com [209.85.214.172]) by ietfa.amsl.com (Postfix) with ESMTP id D791811E8080 for <idr@ietf.org>; Tue, 3 Jul 2012 19:22:31 -0700 (PDT)
Received: by obbwc20 with SMTP id wc20so12303319obb.31 for <idr@ietf.org>; Tue, 03 Jul 2012 19:22:41 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; bh=/yiTVbmPLJ7QSFZyz4Coem/ckYCjlbQNMZJqzVqFtPk=; b=Ch6YSxE7AGSf67I5YlDrV9YTJhAh6X8c5Yb8ynjO9hiV31zp11TlE8TYoGfVhBEWI1 wqOh8hYeEbXbt5eP2jZtcGurCXxxGiv9fQ3pSgaMHZh1IAimCQwpW9HEjhiUNog/2l+A BWGaCYVQwWwer0sL3t0/dRkru4kcfInp/MOtbzOT8ab59HeSouKg7uN4EvSN9MVPj7vQ odbxP7IRlQR9deRTrpSPI4ORb5c+HLqXS+tTFwH8S01FN+59fOuXkHgZAi4Rlt3OBOtY uTKFWsTFOOdX9Fopcjs3tDYG2gnWJIE0fDEhPRMJRJ+i4+H21lfO2Slovrb4xl65QB+M 0L5w==
MIME-Version: 1.0
Received: by 10.182.164.8 with SMTP id ym8mr15373649obb.51.1341368561086; Tue, 03 Jul 2012 19:22:41 -0700 (PDT)
Sender: christopher.morrow@gmail.com
Received: by 10.182.191.98 with HTTP; Tue, 3 Jul 2012 19:22:40 -0700 (PDT)
In-Reply-To: <4FF350D3.2030205@umn.edu>
References: <20120702164834.GB13713@puck.nether.net> <m2zk7hxli9.wl%randy@psg.com> <20120703141629.GC22598@puck.nether.net> <CAL9jLaa0Q6Zwrce8cxYY_VtDOsnjdQF6gG+bEC3T4LZbJYuZ7w@mail.gmail.com> <4FF350D3.2030205@umn.edu>
Date: Tue, 03 Jul 2012 22:22:40 -0400
X-Google-Sender-Auth: LGgqwUAJl_yS4WhhTidDEcpbS-k
Message-ID: <CAL9jLaYy0teaYB7w4RdS7GQUKr3HM6oQGd6_N5iBXWOVRe+kpQ@mail.gmail.com>
From: Christopher Morrow <morrowc.lists@gmail.com>
To: David Farmer <farmer@umn.edu>
Content-Type: text/plain; charset="ISO-8859-1"
Cc: idr@ietf.org
Subject: Re: [Idr] new ID on expansion of private use ASN range
X-BeenThere: idr@ietf.org
X-Mailman-Version: 2.1.12
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: <http://www.ietf.org/mail-archive/web/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: Wed, 04 Jul 2012 02:22:32 -0000

On Tue, Jul 3, 2012 at 4:06 PM, David Farmer <farmer@umn.edu> wrote:
> Realistically, even in your example of the large clothing store chain, I'll
> bet you there are not multiple unique routing policies involved, its because
> they want eBGP going to each of the endsites. Right or wrong, lots of people
> use private ASNs so that most if not all of their peerings are eBGP and not
> iBGP.

Their WAN provider (of the week, it may change tomorow) has an ASN
(not the clothing stores) that it uses to peer with the endsites. Each
endsite uses a unique ASN so as to be easily found... tomorrow they
may choose a new network provider, it'd be a bummer if they had to
change lots more than 'add new peer to all endsites, depref old peer,
turn down  old circuits, profit!'.

-chris

v2.31.3 | Report a Bug | By Email | System Status