CDNI Control Interface / Triggers
draft-ietf-cdni-control-triggers-10

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Document Type Active Internet-Draft (cdni WG)
Last updated 2015-12-06
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Network Working Group                                          R. Murray
Internet-Draft                                          B. Niven-Jenkins
Intended status: Standards Track                Velocix (Alcatel-Lucent)
Expires: June 8, 2016                                   December 6, 2015

                   CDNI Control Interface / Triggers
                  draft-ietf-cdni-control-triggers-10

Abstract

   This document describes the part of the CDN Interconnection Control
   Interface that allows a CDN to trigger activity in an interconnected
   CDN that is configured to deliver content on its behalf.  The
   upstream CDN can use this mechanism to request that the downstream
   CDN pre-positions metadata or content, or that it invalidates or
   purges metadata or content.  The upstream CDN can monitor the status
   of activity that it has triggered in the downstream CDN.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

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
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   Drafts is at http://datatracker.ietf.org/drafts/current/.

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   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 June 8, 2016.

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Murray & Niven-Jenkins    Expires June 8, 2016                  [Page 1]
Internet-Draft          CDN Interconnect Triggers          December 2015

   This document is subject to BCP 78 and the IETF Trust's Legal
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   (http://trustee.ietf.org/license-info) in effect on the date of
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Model for CDNI Triggers . . . . . . . . . . . . . . . . . . .   4
     2.1.  Timing of Triggered Activity  . . . . . . . . . . . . . .   6
     2.2.  Scope of Triggered Activity . . . . . . . . . . . . . . .   6
     2.3.  Trigger Results . . . . . . . . . . . . . . . . . . . . .   6
   3.  Collections of Trigger Status Resources . . . . . . . . . . .   7
   4.  CDNI Trigger Interface  . . . . . . . . . . . . . . . . . . .   8
     4.1.  Creating Triggers . . . . . . . . . . . . . . . . . . . .   9
     4.2.  Checking Status . . . . . . . . . . . . . . . . . . . . .  10
       4.2.1.  Polling Trigger Status Resource collections . . . . .  10
       4.2.2.  Polling Trigger Status Resources  . . . . . . . . . .  11
     4.3.  Cancelling Triggers . . . . . . . . . . . . . . . . . . .  11
     4.4.  Deleting Triggers . . . . . . . . . . . . . . . . . . . .  12
     4.5.  Expiry of Trigger Status Resources  . . . . . . . . . . .  12
     4.6.  Loop Detection and Prevention . . . . . . . . . . . . . .  13
     4.7.  Error Handling  . . . . . . . . . . . . . . . . . . . . .  13
     4.8.  Content URLs  . . . . . . . . . . . . . . . . . . . . . .  14
   5.  CI/T Object Properties and Encoding . . . . . . . . . . . . .  14
     5.1.  CI/T Objects  . . . . . . . . . . . . . . . . . . . . . .  15
       5.1.1.  CI/T Commands . . . . . . . . . . . . . . . . . . . .  15
       5.1.2.  Trigger Status Resource . . . . . . . . . . . . . . .  16
       5.1.3.  Trigger Collection  . . . . . . . . . . . . . . . . .  17
     5.2.  Properties of CI/T Objects  . . . . . . . . . . . . . . .  18
       5.2.1.  Trigger Specification . . . . . . . . . . . . . . . .  19
       5.2.2.  Trigger Type  . . . . . . . . . . . . . . . . . . . .  20
       5.2.3.  Trigger Status  . . . . . . . . . . . . . . . . . . .  21
       5.2.4.  PatternMatch  . . . . . . . . . . . . . . . . . . . .  21
       5.2.5.  Absolute Time . . . . . . . . . . . . . . . . . . . .  22
       5.2.6.  Error Description . . . . . . . . . . . . . . . . . .  22
       5.2.7.  Error Code  . . . . . . . . . . . . . . . . . . . . .  23
   6.  Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .  24
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