CDNI Control Triggers Interface Extensions
draft-ietf-cdni-triggers-extensions-02
Network Working Group O. Finkelman
Internet-Draft Qwilt
Updates: 8007 (if approved) S. Mishra
Intended status: Standards Track Verizon
Expires: October 2, 2019 March 31, 2019
CDNI Control Triggers Interface Extensions
draft-ietf-cdni-triggers-extensions-02
Abstract
This document updates RFC 8007 to include generic extensions and more
granular content matching options, required by the Open Caching
architecture. The Open Caching working group of the Streaming Video
Alliance is focused on the delegation of video delivery request from
commercial CDNs to a caching layer at the ISP. In that aspect, 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). The extensions specified in this document to the CDNI
Control Interface / Triggers are derived from requirements of Open
Caching but are applicable to CDNI use cases in general.
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
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 October 2, 2019.
Finkelman & Mishra Expires October 2, 2019 [Page 1]
Internet-DraftCDNI Control Interface / Triggers Extensions March 2019
Copyright Notice
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 4
1.2. Structure of this document . . . . . . . . . . . . . . . 4
2. Interfaces Extensions Overview . . . . . . . . . . . . . . . 4
2.1. CDNI Control Interface / Triggers Extensions . . . . . . 5
2.1.1. CI/T Objects . . . . . . . . . . . . . . . . . . . . 5
2.1.2. Trigger Specification . . . . . . . . . . . . . . . . 5
2.1.3. Content Selection . . . . . . . . . . . . . . . . . . 5
2.1.4. Trigger Extensibility . . . . . . . . . . . . . . . . 5
2.1.5. Error Handling . . . . . . . . . . . . . . . . . . . 6
2.2. CDNI Footprint and Capabilities Interface Extensions . . 6
3. CI/T Version 2 . . . . . . . . . . . . . . . . . . . . . . . 7
3.1. CI/T Objects V2 . . . . . . . . . . . . . . . . . . . . . 7
3.2. Error Handling V2 . . . . . . . . . . . . . . . . . . . . 9
3.3. Properties of CI/T Version 2 objects . . . . . . . . . . 10
3.3.1. Trigger Specification Version 2 . . . . . . . . . . . 10
3.3.2. RegexMatch . . . . . . . . . . . . . . . . . . . . . 11
3.3.3. Playlist . . . . . . . . . . . . . . . . . . . . . . 13
3.3.4. MediaProtocol . . . . . . . . . . . . . . . . . . . . 13
3.3.5. CI/T Trigger Extensions . . . . . . . . . . . . . . . 14
3.3.5.1. Enforcement Options . . . . . . . . . . . . . . . 14
3.3.5.2. GenericExtensionObject . . . . . . . . . . . . . 17
3.3.6. Error Description Version 2 . . . . . . . . . . . . . 19
3.3.7. Error codes . . . . . . . . . . . . . . . . . . . . . 21
3.4. Examples . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4.1. Invalidation with Regex . . . . . . . . . . . . . . . 21
3.4.2. Preposition with Playlists . . . . . . . . . . . . . 23
3.4.3. Extensions with Error Propagation . . . . . . . . . . 24
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