Re: [p2pi] ALTO Information Export Service
John Leslie <john@jlc.net> Wed, 29 October 2008 15:47 UTC
Return-Path: <p2pi-bounces@ietf.org>
X-Original-To: p2pi-archive@ietf.org
Delivered-To: ietfarch-p2pi-archive@core3.amsl.com
Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id C46B33A69D2; Wed, 29 Oct 2008 08:47:48 -0700 (PDT)
X-Original-To: p2pi@core3.amsl.com
Delivered-To: p2pi@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8D9A93A6D27 for <p2pi@core3.amsl.com>; Wed, 29 Oct 2008 08:47:47 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.599
X-Spam-Level:
X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gxi7dYP8lRjj for <p2pi@core3.amsl.com>; Wed, 29 Oct 2008 08:47:46 -0700 (PDT)
Received: from mailhost.jlc.net (mailhost.jlc.net [199.201.159.9]) by core3.amsl.com (Postfix) with ESMTP id C55233A6894 for <p2pi@ietf.org>; Wed, 29 Oct 2008 08:47:46 -0700 (PDT)
Received: by mailhost.jlc.net (Postfix, from userid 104) id F3C5333C31; Wed, 29 Oct 2008 11:47:44 -0400 (EDT)
Date: Wed, 29 Oct 2008 11:47:44 -0400
From: John Leslie <john@jlc.net>
To: Laird Popkin <laird@pando.com>
Message-ID: <20081029154744.GF7530@verdi>
References: <C52E29C8.7A835%sprevidi@cisco.com> <1603497045.408271225293796368.JavaMail.root@dkny.pando.com>
Mime-Version: 1.0
Content-Disposition: inline
In-Reply-To: <1603497045.408271225293796368.JavaMail.root@dkny.pando.com>
User-Agent: Mutt/1.4.1i
Cc: p2pi@ietf.org
Subject: Re: [p2pi] ALTO Information Export Service
X-BeenThere: p2pi@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: P2P Infrastructure Discussion <p2pi.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/p2pi>, <mailto:p2pi-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/pipermail/p2pi>
List-Post: <mailto:p2pi@ietf.org>
List-Help: <mailto:p2pi-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/p2pi>, <mailto:p2pi-request@ietf.org?subject=subscribe>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Sender: p2pi-bounces@ietf.org
Errors-To: p2pi-bounces@ietf.org
Laird Popkin <laird@pando.com> wrote: > > Keep in mind that ASNs are just an option in ALTO (as we're discussing > it so far), so even if the P2P network uses a public IP to ASN mapping > database, the ISP can provide their own IP prefix guidance without > referencing ASNs if they care to. Indeed they can -- (by omitting any ASN guidance at all). But then, why include the option? The advantage of including an ASN option, IMHO, is that a policy can be stated in a reasonably static manner using ASNs -- provided that the meaning of those ASNs is clearly "where my routers will forward packets". This avoids having to frequently update policy as routing tables change and having to state policy for hundreds of thousands of CIDR blocks. A downside is that ALTO clients may lack up-to-the-minute routing information when mapping IPs to ASNs. That, IMHO, is something to work on when the ALTO WG is formed. Several "good-enough" approaches suggest themselves... But if clients are encouraged to use mapping quite unrelated to the actual routing, then policy stated in ASNs is actively misleading. I would much prefer not to _design_ misleading policy into ALTO. -- John Leslie <john@jlc.net> _______________________________________________ p2pi mailing list p2pi@ietf.org https://www.ietf.org/mailman/listinfo/p2pi
- Re: [p2pi] ALTO Information Export Service Laird Popkin
- Re: [p2pi] ALTO Information Export Service stefano previdi
- Re: [p2pi] ALTO Information Export Service John Leslie
- [p2pi] ALTO Information Export Service Stanislav Shalunov
- Re: [p2pi] ALTO Information Export Service John Leslie
- Re: [p2pi] ALTO Information Export Service Woundy, Richard
- Re: [p2pi] ALTO Information Export Service Reinaldo Penno
- Re: [p2pi] ALTO Information Export Service Salman Abdul Baset
- Re: [p2pi] ALTO Information Export Service Reinaldo Penno
- Re: [p2pi] ALTO Information Export Service stefano previdi
- Re: [p2pi] ALTO Information Export Service Laird Popkin
- Re: [p2pi] ALTO Information Export Service Reinaldo Penno
- Re: [p2pi] ALTO Information Export Service John Leslie
- Re: [p2pi] ALTO Information Export Service Laird Popkin