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Application-Layer Traffic Optimization (ALTO) Deployment Considerations (RFC7971)

IP.com Disclosure Number: IPCOM000247867D
Original Publication Date: 2016-Oct-01
Included in the Prior Art Database: 2016-Oct-07

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M. Stiemerling: AUTHOR [+5]

Abstract

Many Internet applications are used to access resources such as pieces of information or server processes that are available in several equivalent replicas on different hosts. This includes, but is not limited to, peer-to-peer (P2P) file sharing applications and Content Delivery Networks (CDNs). 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. The basic ideas and problem space of ALTO is described in [RFC5693] and the set of requirements is discussed in [RFC6708]. The ALTO protocol is specified in [RFC7285]. An ALTO server discovery procedure is defined in [RFC7286].

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Internet Engineering Task Force (IETF)                    M. Stiemerling Request for Comments: 7971                          Hochschule Darmstadt Category: Informational                                        S. Kiesel ISSN: 2070-1721                                  University of Stuttgart                                                                M. Scharf                                                                    Nokia                                                                H. Seidel                                                                   BENOCS                                                               S. Previdi                                                                    Cisco                                                             October 2016

 Application-Layer Traffic Optimization (ALTO) Deployment Considerations

Abstract

   Many Internet applications are used to access resources such as    pieces of information or server processes that are available in    several equivalent replicas on different hosts.  This includes, but    is not limited to, peer-to-peer file sharing applications.  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.    This memo discusses deployment-related issues of ALTO.  It addresses    different use cases of ALTO such as peer-to-peer file sharing and    Content Delivery Networks (CDNs) and presents corresponding examples.    The document also includes recommendations for network administrators    and application designers planning to deploy ALTO, such as    recommendations on how to generate ALTO map information.

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for informational purposes.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Not all documents    approved by the IESG are a candidate for any level of Internet    Standard; see Section 2 of RFC 7841.

   Information about the current status of this document, any errata, ...