Content Delivery Network Interconnection (CDNI) Control Interface / Triggers
RFC 8007
Internet Engineering Task Force (IETF) R. Murray
Request for Comments: 8007 B. Niven-Jenkins
Category: Standards Track Nokia
ISSN: 2070-1721 December 2016
Content Delivery Network Interconnection (CDNI)
Control Interface / Triggers
Abstract
This document describes the part of the Content Delivery Network
Interconnection (CDNI) 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-position metadata or content or
to request that it invalidate or purge metadata or content. The
upstream CDN can monitor the status of activity that it has triggered
in the downstream CDN.
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/rfc8007.
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.
Murray & Niven-Jenkins Standards Track [Page 1]
RFC 8007 CDN Interconnect Triggers December 2016
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 ................................7
2.2.1. Multiple Interconnected CDNs ........................7
2.3. Trigger Results ............................................8
3. Collections of Trigger Status Resources .........................9
4. CDNI Trigger Interface .........................................10
4.1. Creating Triggers .........................................11
4.2. Checking Status ...........................................12
4.2.1. Polling Trigger Status Resource Collections ........12
4.2.2. Polling Trigger Status Resources ...................13
4.3. Canceling Triggers ........................................13
4.4. Deleting Triggers .........................................14
4.5. Expiry of Trigger Status Resources ........................14
4.6. Loop Detection and Prevention .............................15
4.7. Error Handling ............................................15
4.8. Content URLs ..............................................16
5. CI/T Object Properties and Encoding ............................17
5.1. CI/T Objects ..............................................17
5.1.1. CI/T Commands ......................................17
5.1.2. Trigger Status Resources ...........................18
5.1.3. Trigger Collections ................................20
5.2. Properties of CI/T Objects ................................21
5.2.1. Trigger Specification ..............................21
5.2.2. Trigger Type .......................................23
5.2.3. Trigger Status .....................................24
5.2.4. PatternMatch .......................................24
5.2.5. Absolute Time ......................................25
5.2.6. Error Description ..................................26
5.2.7. Error Code .........................................26
6. Examples .......................................................27
6.1. Creating Triggers .........................................28
6.1.1. Preposition ........................................28
6.1.2. Invalidate .........................................30
Show full document text