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Request Routing Redirection Interface for Content Delivery Network (CDN) Interconnection (RFC7975) Disclosure Number: IPCOM000247980D
Original Publication Date: 2016-Oct-01
Included in the Prior Art Database: 2016-Nov-06
Document File: 70 page(s) / 76K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

B. Niven-Jenkins: AUTHOR [+3]


A Content Delivery Network (CDN) is a system built on an existing IP network that is used for large-scale content delivery, via prefetching or dynamically caching content on its distributed surrogates (caching servers). [RFC6707] describes the problem area of interconnecting CDNs.

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Internet Engineering Task Force (IETF)             B. Niven-Jenkins, Ed. Request for Comments: 7975                                         Nokia Category: Standards Track                        R. van Brandenburg, Ed. ISSN: 2070-1721                                                      TNO                                                             October 2016

                Request Routing Redirection Interface for              Content Delivery Network (CDN) Interconnection


   The Request Routing interface comprises (1) the asynchronous    advertisement of footprint and capabilities by a downstream Content    Delivery Network (CDN) that allows an upstream CDN to decide whether    to redirect particular user requests to that downstream CDN; and (2)    the synchronous operation of an upstream CDN requesting whether a    downstream CDN is prepared to accept a user request and of a    downstream CDN responding with how to actually redirect the user    request.  This document describes an interface for the latter part,    i.e., the CDNI Request Routing Redirection interface.

Status of This Memo

   This is an Internet Standards Track document.

   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).  Further information on    Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

 Niven-Jenkins, et al.        Standards Track                    [Page 1]
 RFC 7975               Request Routing Redirection          October 2016

 Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal    Provisions Relating to IETF Documents    ( in effect on the date of    publication of this document.  Please review these documents    carefully, as they describe your rights and restrictions with respect    to this document.  Code Components extracted from this document must    include Simplified BSD License text as described in Section 4.e of    the Trust Legal Provisions and are provided without warranty as    described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3

   2.  Terminology ....