Content Delivery Network Interconnection (CDNI) Metadata
RFC 8006

Document Type RFC - Proposed Standard (December 2016; Errata)
Last updated 2017-10-09
Stream IETF
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Stream WG state WG Consensus: Waiting for Write-Up
Document shepherd Francois Le Faucheur
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IESG IESG state RFC 8006 (Proposed Standard)
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Internet Engineering Task Force (IETF)                  B. Niven-Jenkins
Request for Comments: 8006                                     R. Murray
Category: Standards Track                                          Nokia
ISSN: 2070-1721                                             M. Caulfield
                                                           Cisco Systems
                                                                   K. Ma
                                                                Ericsson
                                                           December 2016

        Content Delivery Network Interconnection (CDNI) Metadata

Abstract

   The Content Delivery Network Interconnection (CDNI) Metadata
   interface enables interconnected Content Delivery Networks (CDNs) to
   exchange content distribution metadata in order to enable content
   acquisition and delivery.  The CDNI Metadata associated with a piece
   of content provides a downstream CDN with sufficient information for
   the downstream CDN to service content requests on behalf of an
   upstream CDN.  This document describes both a base set of CDNI
   Metadata and the protocol for exchanging that metadata.

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
   http://www.rfc-editor.org/info/rfc8006.

Niven-Jenkins, et al.        Standards Track                    [Page 1]
RFC 8006              CDN Interconnection Metadata         December 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
   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.

Niven-Jenkins, et al.        Standards Track                    [Page 2]
RFC 8006              CDN Interconnection Metadata         December 2016

Table of Contents

   1. Introduction ....................................................5
      1.1. Terminology ................................................5
      1.2. Supported Metadata Capabilities ............................6
   2. Design Principles ...............................................7
   3. CDNI Metadata Object Model ......................................8
      3.1. HostIndex, HostMatch, HostMetadata, PathMatch,
           PatternMatch, and PathMetadata Objects .....................9
      3.2. Generic CDNI Metadata Objects .............................11
      3.3. Metadata Inheritance and Override .........................14
   4. CDNI Metadata Objects ..........................................15
      4.1. Definitions of the CDNI Structural Metadata Objects .......16
           4.1.1. HostIndex ..........................................16
           4.1.2. HostMatch ..........................................17
           4.1.3. HostMetadata .......................................18
           4.1.4. PathMatch ..........................................19
           4.1.5. PatternMatch .......................................20
           4.1.6. PathMetadata .......................................21
           4.1.7. GenericMetadata ....................................23
      4.2. Definitions of the Initial Set of CDNI
           GenericMetadata Objects ...................................24
           4.2.1. SourceMetadata .....................................24
                  4.2.1.1. Source ....................................25
           4.2.2. LocationACL Metadata ...............................26
                  4.2.2.1. LocationRule ..............................28
                  4.2.2.2. Footprint .................................29
           4.2.3. TimeWindowACL ......................................30
                  4.2.3.1. TimeWindowRule ............................31
                  4.2.3.2. TimeWindow ................................32
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