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Content Distribution Network Interconnection (CDNI) Requirements (RFC7337) Disclosure Number: IPCOM000238268D
Original Publication Date: 2014-Aug-01
Included in the Prior Art Database: 2014-Aug-13
Document File: 46 page(s) / 55K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

K. Leung: AUTHOR [+4]


The volume of video and multimedia content delivered over the Internet is rapidly increasing and expected to continue doing so in the future. In the face of this growth, Content Delivery Networks (CDNs) provide numerous benefits: reduced delivery cost for cacheable content, improved quality of experience for end users, and increased robustness of delivery. For these reasons, CDNs are frequently used for large-scale content delivery. As a result of the significant growth in content delivered over IP networks, existing CDN providers are scaling up their infrastructure and many NSPs and ESPs are deploying their own CDNs. Subject to the policy of the Content Service Provider (CSP), it is generally desirable that a given item

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Internet Engineering Task Force (IETF)                     K. Leung, Ed. Request for Comments: 7337                                         Cisco Category: Informational                                      Y. Lee, Ed. ISSN: 2070-1721                                                  Comcast                                                              August 2014

     Content Distribution Network Interconnection (CDNI) Requirements


   Content delivery is frequently provided by specifically architected    and provisioned Content Delivery Networks (CDNs).  As a result of    significant growth in content delivered over IP networks, existing    CDN providers are scaling up their infrastructure.  Many Network    Service Providers (NSPs) and Enterprise Service Providers (ESPs) are    also deploying their own CDNs.  To deliver contents from the Content    Service Provider (CSP) to end users, the contents may traverse across    multiple CDNs.  This creates a need for interconnecting (previously)    standalone CDNs so that they can collectively act as a single    delivery platform from the CSP to the end users.

   The goal of the present document is to outline the requirements for    the solution and interfaces to be specified by the CDNI working    group.

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 5741.

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

 Leung & Lee                   Informational                     [Page 1]
 RFC 7337                    CDNI Requirements                August 2014

 Copyright Notice

   Copyright (c) 2014 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 docum...