[alto] ALTO Cross-Domain Server Discovery
Sebastian Kiesel <ietf-alto@skiesel.de> Fri, 04 July 2014 19:55 UTC
Return-Path: <sebi@gw01.ehlo.wurstkaes.de>
X-Original-To: alto@ietfa.amsl.com
Delivered-To: alto@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8A2DD1A03E8 for <alto@ietfa.amsl.com>; Fri, 4 Jul 2014 12:55:50 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.201
X-Spam-Level:
X-Spam-Status: No, score=-2.201 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HELO_EQ_DE=0.35, RP_MATCHES_RCVD=-0.651] autolearn=ham
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 8Nj-zEONen2w for <alto@ietfa.amsl.com>; Fri, 4 Jul 2014 12:55:42 -0700 (PDT)
Received: from gw01.ehlo.wurstkaes.de (gw01.ehlo.wurstkaes.de [IPv6:2a02:a00:e000:116::41]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 7CD431B2B5C for <alto@ietf.org>; Fri, 4 Jul 2014 12:55:31 -0700 (PDT)
Received: from sebi by gw01.ehlo.wurstkaes.de with local (Exim 4.80) (envelope-from <sebi@gw01.ehlo.wurstkaes.de>) id 1X39Zo-0002Q9-S7 for alto@ietf.org; Fri, 04 Jul 2014 21:55:20 +0200
Date: Fri, 04 Jul 2014 21:55:20 +0200
From: Sebastian Kiesel <ietf-alto@skiesel.de>
To: alto@ietf.org
Message-ID: <20140704195520.GZ7329@gw01.ehlo.wurstkaes.de>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Disposition: inline
Accept-Languages: en, de
Organization: my personal mail account
User-Agent: Mutt/1.5.21 (2010-09-15)
Archived-At: http://mailarchive.ietf.org/arch/msg/alto/MQKqxOjfcYtsqimOdIsH6OaI2e8
Subject: [alto] ALTO Cross-Domain Server Discovery
X-BeenThere: alto@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: "Application-Layer Traffic Optimization \(alto\) WG mailing list" <alto.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/alto>, <mailto:alto-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/alto/>
List-Post: <mailto:alto@ietf.org>
List-Help: <mailto:alto-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/alto>, <mailto:alto-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 04 Jul 2014 19:55:50 -0000
Dear ALTO WG members, We have submitted two new drafts, draft-kiesel-alto-xdom-disc-00 and draft-kiesel-alto-xdom-disc-alg-00. These drafts are successors of draft-kist-alto-3pdisc. We have decided to rename "Third-Party Server Discovery" to "Cross-Domain Server Discovery" in order to avoid ambiguities with other discovery use cases. draft-kiesel-alto-xdom-disc is a candidate for our charter item "One or more alternatives to the base ALTO server discovery mechanism (RFC-to-be) to accommodate environments where [...] (2) it is desirable for an ALTO client to be able to discover an ALTO server outside its own domain." The draft currently gives a motivation, describes the deployment scenario and itemizes requirements for a discovery mechanism. We will add a survey on related IETF activities and protocols in the next version (One hot candidate is RFC 7216). draft-kiesel-alto-xdom-disc-alg serves as a parking orbit for the algorithm we've been working on. We are planning to merge it back to the first document if (and only if) the survey does not yield a re-usable existing solution. As always, reviews and comments are most welcome! Thanks Martin and Sebastian On Fri, Jul 04, 2014 at 09:33:19AM -0700, internet-drafts@ietf.org wrote: > > A New Internet-Draft is available from the on-line Internet-Drafts directories. > > > Title : Application Layer Traffic Optimization (ALTO) Cross-Domain Server Discovery > Authors : Sebastian Kiesel > Martin Stiemerling > Filename : draft-kiesel-alto-xdom-disc-00.txt > Pages : 22 > Date : 2014-07-04 > > Abstract: > The goal of Application-Layer Traffic Optimization (ALTO) is to > provide guidance to applications that have to select one or several > hosts from a set of candidates capable of providing a desired > resource. ALTO is realized by a client-server protocol. Before an > ALTO client can ask for guidance it needs to discover one or more > ALTO servers that can provide suitable guidance. > > In some deployment scenarios, in particular if the information about > the network topology is partitioned and distributed over several ALTO > servers, an ALTO client may need to discover an ALTO server outside > of its own network domain, in order to get appropriate guidance. > > This document details applicable scenarios, itemizes requirements, > and analyzes existing solution approaches for such ALTO cross-domain > server discovery. However, the specification of a procedure is > beyond the scope of this document. Note, that in earlier versions of > this document, ALTO cross-domain server discovery was referred to as > "third-party discovery", but it has been renamed to avoid naming > ambiguities. > > > The IETF datatracker status page for this draft is: > https://datatracker.ietf.org/doc/draft-kiesel-alto-xdom-disc/ > > There's also a htmlized version available at: > http://tools.ietf.org/html/draft-kiesel-alto-xdom-disc-00 > > > Please note that it may take a couple of minutes from the time of submission > until the htmlized version and diff are available at tools.ietf.org. > > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ > > _______________________________________________ > I-D-Announce mailing list > I-D-Announce@ietf.org > https://www.ietf.org/mailman/listinfo/i-d-announce > Internet-Draft directories: http://www.ietf.org/shadow.html > or ftp://ftp.ietf.org/ietf/1shadow-sites.txt On Fri, Jul 04, 2014 at 09:33:22AM -0700, internet-drafts@ietf.org wrote: > > A New Internet-Draft is available from the on-line Internet-Drafts directories. > > > Title : Application Layer Traffic Optimization (ALTO) Cross-Domain Server Discovery - Experimental Algorithm Specification > Authors : Sebastian Kiesel > Kilian Krause > Martin Stiemerling > Filename : draft-kiesel-alto-xdom-disc-alg-00.txt > Pages : 19 > Date : 2014-07-04 > > Abstract: > The goal of Application-Layer Traffic Optimization (ALTO) is to > provide guidance to applications that have to select one or several > hosts from a set of candidates capable of providing a desired > resource. ALTO is realized by a client-server protocol. Before an > ALTO client can ask for guidance it needs to discover one or more > ALTO servers that can provide suitable guidance. > > This document contains a strawman proposal for an ALTO Cross-Domain > Server Discovery procedure (also known as Third-Party Discovery). > Technically, the algorithm specified in this document takes one > IP address and a U-NAPTR Service Parameter (i.e., "ALTO:http" or > "ALTO:https") as parameters. It performs several DNS lookups (for > U-NAPTR and SOA resource records) and returns one or more URI(s) of > information resources related to that IP address. > > The functionality has been validated in a lab environment. However, > the feasibility and possible side-effects of Internet-wide > "production use" are not yet understood. The purpose of this > document is to foster further discussion within the ALTO working > group. Readers of this document should exercise caution in > evaluating its value for implementation and deployment. > > > The IETF datatracker status page for this draft is: > https://datatracker.ietf.org/doc/draft-kiesel-alto-xdom-disc-alg/ > > There's also a htmlized version available at: > http://tools.ietf.org/html/draft-kiesel-alto-xdom-disc-alg-00 > > > Please note that it may take a couple of minutes from the time of submission > until the htmlized version and diff are available at tools.ietf.org. > > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ > > _______________________________________________ > I-D-Announce mailing list > I-D-Announce@ietf.org > https://www.ietf.org/mailman/listinfo/i-d-announce > Internet-Draft directories: http://www.ietf.org/shadow.html > or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
- [alto] ALTO Cross-Domain Server Discovery Sebastian Kiesel