CDNI Request Routing Extensions
draft-ietf-cdni-request-routing-extensions-07

Document Type Active Internet-Draft (cdni WG)
Last updated 2019-10-17 (latest revision 2019-09-24)
Replaces draft-finkelman-cdni-rr-sva-extensions
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Intended RFC status Proposed Standard
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Stream WG state Submitted to IESG for Publication
Document shepherd Kevin Ma
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Has a DISCUSS. Has enough positions to pass once DISCUSS positions are resolved.
Responsible AD Barry Leiba
Send notices to Kevin Ma <kevin.j.ma.ietf@gmail.com>
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Network Working Group                                       O. Finkelman
Internet-Draft                                                     Qwilt
Intended status: Standards Track                               S. Mishra
Expires: March 26, 2020                                          Verizon
                                                      September 23, 2019

                    CDNI Request Routing Extensions
             draft-ietf-cdni-request-routing-extensions-07

Abstract

   Open Caching is a use case of Content Delivery Networks
   Interconnetion (CDNI) in which the commercial Content Delivery
   Network (CDN) is the upstream CDN (uCDN) and the ISP caching layer
   serves as the downstream CDN (dCDN).  The extensions specified in
   this document to the CDNI Metadata and FCI interfaces are derived
   from requirements raised by Open Caching but are also applicable to
   CDNI use cases in general.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in BCP
   14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

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 https://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 March 26, 2020.

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Copyright Notice

   Copyright (c) 2019 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
   (https://trustee.ietf.org/license-info) 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  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Redirect Target Capability  . . . . . . . . . . . . . . . . .   3
     2.1.  Properties of Redirect Target Capability Object . . . . .   5
     2.2.  DnsTarget . . . . . . . . . . . . . . . . . . . . . . . .   6
     2.3.  HttpTarget  . . . . . . . . . . . . . . . . . . . . . . .   7
     2.4.  Usage Example . . . . . . . . . . . . . . . . . . . . . .   9
   3.  Fallback Target Address Metadata  . . . . . . . . . . . . . .  10
     3.1.  Properties of Fallback Target Address Metadata Object . .  11
     3.2.  Usage Example . . . . . . . . . . . . . . . . . . . . . .  12
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
     4.1.  CDNI Payload Types  . . . . . . . . . . . . . . . . . . .  14
       4.1.1.  CDNI FCI RedirectTarget Payload Type  . . . . . . . .  14
       4.1.2.  CDNI MI FallbackTarget Payload Type . . . . . . . . .  14
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  14
     5.1.  Confidentiality and Privacy . . . . . . . . . . . . . . .  15
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  15
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  15
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  16
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  16

1.  Introduction

   The Open Caching working group of the Streaming Video Alliance (SVA)
   is focused on the delegation of video delivery requests from
   commercial CDNs to a caching layer at the Internet Service Provider's
   (ISP) network.  Open Caching is a specific use case of CDNI where the
   commercial CDN is the upstream CDN (uCDN) and the ISP caching layer
   is the downstream CDN (dCDN).  This document defines and registers
   CDNI generic metadata object [RFC8006] and CDNI Footprint and

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