Request Routing Redirection interface for CDN Interconnection
draft-ietf-cdni-redirection-18

The information below is for an old version of the document
Document Type Active Internet-Draft (cdni WG)
Last updated 2016-04-15
Stream IETF
Intended RFC status Proposed Standard
Formats pdf htmlized bibtex
Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Kevin Ma
Shepherd write-up Show (last changed 2016-01-28)
IESG IESG state IESG Evaluation::AD Followup
Consensus Boilerplate Yes
Telechat date
Needs 5 more YES or NO OBJECTION positions to pass.
Responsible AD Alexey Melnikov
Send notices to "Kevin J. Ma" <kevin.j.ma@ericsson.com>
IANA IANA review state Version Changed - Review Needed
Network Working Group                              B. Niven-Jenkins, Ed.
Internet-Draft                                                     Nokia
Intended status: Standards Track                 R. van Brandenburg, Ed.
Expires: October 17, 2016                                            TNO
                                                          April 15, 2016

     Request Routing Redirection interface for CDN Interconnection
                     draft-ietf-cdni-redirection-18

Abstract

   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 Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on October 17, 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
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

Niven-Jenkins & van BranExpires October 17, 2016                [Page 1]
Internet-Draft         Request Routing Redirection            April 2016

   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  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Interface function and operation overview . . . . . . . . . .   4
   4.  HTTP based interface for the Redirection Interface  . . . . .   5
     4.1.  Information passed in RI requests & responses . . . . . .   7
     4.2.  JSON encoding of RI requests & responses  . . . . . . . .   8
     4.3.  MIME Media Types used by the RI interface . . . . . . . .  10
     4.4.  DNS redirection . . . . . . . . . . . . . . . . . . . . .  10
       4.4.1.  DNS Redirection requests  . . . . . . . . . . . . . .  10
       4.4.2.  DNS Redirection responses . . . . . . . . . . . . . .  12
     4.5.  HTTP Redirection  . . . . . . . . . . . . . . . . . . . .  14
       4.5.1.  HTTP Redirection requests . . . . . . . . . . . . . .  14
       4.5.2.  HTTP Redirection responses  . . . . . . . . . . . . .  16
     4.6.  Cacheability and scope of responses . . . . . . . . . . .  18
     4.7.  Error responses . . . . . . . . . . . . . . . . . . . . .  20
     4.8.  Loop detection & prevention . . . . . . . . . . . . . . .  24
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  25
     5.1.  Authentication, Authorization, Confidentiality, Integrity
           Protection  . . . . . . . . . . . . . . . . . . . . . . .  26
     5.2.  Privacy . . . . . . . . . . . . . . . . . . . . . . . . .  26
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  27
     6.1.  CDNI Payload Type Parameter registrations . . . . . . . .  27
       6.1.1.  CDNI RI Redirection Request Payload Type  . . . . . .  27
       6.1.2.  CDNI RI Redirection Response Payload Type . . . . . .  28
     6.2.  RI Error response registry  . . . . . . . . . . . . . . .  28
   7.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  29
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  29
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  29
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  29
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  30
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  31

1.  Introduction

   A Content Delivery Network (CDN) is a system built on an existing IP
Show full document text