Open Caching

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Overview

As the amount of online video increases, ISPs face a challenge—the burdening of their networks with a growing amount of Internet-sourced traffic such as online video. But what if the ISP could pull video content from local cache? In this working group, participating members focus on helping ISPs solve this traffic problem by establishing the underlying technical and functional requirements for implementing an in-network, open caching system.

Objectives

The Streaming Video Alliance Open Caching Working Group has two objectives. First, to identify the critical components of a non-proprietary caching system; and second, to establish basic architectural guidelines for implementation of an open caching system.

Chairs

Technology Ambassador

Current Projects

This group does not have any current projects.

Proof of Concepts

This group has not initiated or completed any proofs of concept.

Presentations

Below are presentations delivered during working group sessions. Click on the presentation name to open it (many files are for members only and will require authentication) and a presenter name to view their profile. Note: if a presenter’s profile is not public, it will redirect to their LinkedIn page.

5G, MEC, and Open Caching

  

Presented by Yoav Gressel

Carlsbad F2F: Open Caching WG Slides

  

Presented by Eric Klein

Certificate Delegation

  

Presented by Sanjay Mishra

HTTPS Delegation - IETF101 Hackathon Proposal

  

Presented by Sanjay Mishra

IETF Update for Open Caching

  

Presented by Sanjay Mishra

MEC and Open Caching (Results Analysis)

  

Presented by Yoav Gressel

Multicast Over LTE POC

  

Presented by Sanjay Mishra

OC POC with eMBMS

  

Presented by William Chow

OC WG @ SVA Labs

  

Presented by Yoav Gressel

Open Caching docs update - SVA Q1 2018

  

Presented by Ori Finkelman

Open Caching Manifest Rewrite Proposal

  

Presented by Ori Finkelman

Open Caching Network Performance Metrics

  

Presented by Sanjay Mishra

Open Caching Presentations (Philadelphia Face-to-Face 2019)

  

Presented by Eric Klein

Open Caching Redirect Testbed

  

Presented by Sanjay Mishra

Open Caching Relayed Token Authentication

  

Presented by Ori Finkelman

Open Caching security considerations - f2f meeting May 2018

  

Presented by Ori Finkelman

Open Caching Status Update

  

Presented by Sanjay Mishra

Open Caching Status update (Feb 2019)

  

Presented by Sanjay Mishra

Implementation Guidelines Testbed

  

Presented by Alfonso Siloniz

Presented by Guillaume Bichot

Capacity Insights Update

  

Presented by Andrew Ryan

Configuration Interface Update

  

Presented by Glenn Goldstein

Open Caching WG Session

  

Presented by Alan Arolovitch

Presented by Alfonso Siloniz

Presented by Andrew Ryan

Presented by Dan Newman

Presented by Glenn Goldstein

Presented by Guillaume Bichot

Presented by Pankaj Chaudhari

Presented by Yoav Gressel

Open Caching Working Group Cpacity Insights Update

  

Presented by Andrew Ryan

Common Access Token Update

  

Presented by Pankaj Chaudhari

Open Caching Working Group Configuration Interface Update

  

Presented by Glenn Goldstein

Open Caching Working Group Logging Update

  

Presented by Ben Rosenblum

Open Caching Working Group Request Routing Interface Discussion

  

Presented by Guillaume Bichot

Open Caching Working Group Testbed Update

  

Presented by Alfonso Siloniz

Presented by Guillaume Bichot

Open Caching Working Group Versioning Discussion

  

Presented by Guillaume Bichot

Open Caching Working Group Session

  

Presented by Pankaj Chaudhari

Presented by Yoav Gressel

IETF CDNI Working Group Update

  

Presented by Sanjay Mishra

Client Redirection Challenges Presentation

  

Presented by Rob Colantuoni

Configuration Interface API Update

  

Presented by Glenn Goldstein

Open Caching WG Document Overview

  

Presented by Yoav Gressel

Home Storage Update

  

Presented by Dan Newman

Open Caching WG Roadmap Presentation

  

Presented by Eric Klein

Open Caching Implementation Guidelines and Testbed Update

  

Presented by Alfonso Siloniz

Presented by Guillaume Bichot

Capacity Insight API Update

  

Presented by Andrew Ryan

Request Routing by Manifest Rewrite

  

Presented by Ori Finkelman

Review of Open Caching Service Provisioning Specification

  

Presented by Alfonso Siloniz

SVA Lisbon API Review

  

Presented by Eric Klein

SVA Lisbon Capacity API status

  

Presented by Eric Klein

SVA OC WG - MEC Status Update

  

Presented by Yoav Gressel

SVA OC WG Docs and Activities

  

Presented by Yoav Gressel

Documents

Published

Open Cache Logging Requirements Specification

This document specifies requirements for Open Caching System (OCS) for Logging data to help track data acquisition and delivery of it to the end user. The information logging is critical for the Open Caching Nodes as well as the upstream CDN and the Content Provider (CP). Logging information helps OCS track key performance metrics such as, data acquisition, delivery success and failures, measuring of effective throughput, cache hits and for troubleshooting fault and performance degradation. The logging data provided to the CDN by the OCS is also used by CDNs for auditing, billing and SLA purposes. The information logging will also be used by Open Caching Nodes (making up an OCS) for ensuring its compliance of SLAs with CDNs and measuring and assuring Quality of Experience (QoE) for an end user.

Open Cache Request Routing Functional Specification

This document describes the high-level functional specification of open caching request routing and the required interfaces to enable request routing to be performed from an upstream CDN to an open cache system. This version has been updated to address the Manifest Rewrite routing scheme.

Open Cache Request Routing Service Provisioning Interface Specification

This includes the functional specification of open-caching service provisioning interfaces enabling a CDN and an SP to exchange information to enable the delegation of CDN content requests to the SP Open Caching system.

Open Cache Solution Functional Requirements Document

Problem statement and functional requirements of an open caching solution deployed by service providers to be used by content providers and content delivery networks.

Open Caching Configuration Interface: Part 1

This is the first part in a set of documents that specifies the motivational drivers, use cases, and standards for a configuration interface to facilitate interoperability within the content delivery network (CDN) and open caching ecosystems. This document set presents a layered architecture that extends the Internet Engineering Task Force (IETF) CDN Interconnect (CDNi) metadata model and adds publishing layer Application Programming Interfaces (APIs) to provide configuration management capabilities required by the CDN and open caching industries.

Open Caching Configuration Interface: Part 2 – Extensions to CDNi Metadata Object Model

This is part two in a set of documents that specifies the motivational drivers, use cases, and standards for a configuration interface to facilitate interoperability within the content delivery network (CDN) and open caching ecosystem. This document presents the context and requirements for extending the Content Delivery Network Interconnection (CDNi) metadata model, as well as specific extensions that will fulfill those requirements.

This document will provide all the necessary information for an Internet Engineering Task Force (IETF) memo describing the Streaming Video Alliance (SVA) metadata interface requirements beyond those stated in RFC-7337 (Content Distribution Network Interconnection Requirements), along with requested extensions to RFC-8006 (Content Delivery Network Interconnection Metadata).

Open Caching Configuration Interface: Part 3 – Publishing Layer APIs

This is part three in a set of documents that specifies the motivations, use cases, and standards for a configuration interface to facilitate interoperability within the content delivery network (CDN) and open caching ecosystems. In this document, the requirements for a configuration publishing layer are presented, along with APIs that facilitate the publishing of CDNi metadata objects within the CDN and open caching ecosystems.

Open Caching Content Management Operations Specification

This document describes the functional specification of the Open Caching Content Management interface and the functionality requirements from the SP Open Caching system. This document discusses the interface between the SP Open Caching Controller and the CDN. The interface between the SP OCC and the cache nodes (OCNs) is beyond the scope of this document.

Open Caching Logging Integration Functional Specification

This document describes the process of provisioning a Logging Integration between a CDN and an ISP in an Open Caching solution. That is the process of configuring how delivery logs are transferred from ISP to CDN. The requirements for logging in Open Caching Nodes are described in the “Open Caching Logging Requirements Specification” document. This document defines extensions to the “Footprint and Capabilities” interface and to the “Service Metadata” interface, to allow provisioning a Logging Integration.

Open Caching Performance Measurement Specification

This document outlines measurement metrics for open-caching. The focus of this document is to outline key performance indicators related to quality of service metrics at the open cache nodes that is responsible for delivering the streaming content.

Open Caching Relayed Token Authentication

This document describes the functional specification of open-caching relayed-token-authentication mechanism. The focus is on generically supporting URI signing using this method. There are additional applications – like user Cookies, which are mentioned in this document without getting into the specifics. While multiple different CDNs, as well as CDNi, support Tokenization in alternative methods, the goal of this implementation is to support all of these different formats via the relay authentication mechanism.

Optimizing Video Delivery With The Open Caching Network

Delivering a great video experience requires content to be served as close to the end-user as possible. In this whitepaper, we illustrate how network operators can implement Open Caching nodes at the edge of their network, while adhering to specifications created by the Open Caching Working Group of the Streaming Video Alliance. These nodes can mitigate delivery latency and provide an improved viewer experience when hosted by the ISP and connected to the CDN/Content Provider nodes outside of the operator network, to create an Open Caching Network.

Draft

Note that to download draft documents, you must be an employee of an active member company with an ARO account. If you are part of a member company and don’t yet have an ARO account, you can request one here.

Open Caching Capacity Interface

This document defines the specification for an API to retrieve capacity metrics from an Open Caching Node.

Open Cache Request Routing Functional Specification (Version 2.0)

This document describes the high-level functional specification of open caching request routing and the required interfaces to enable request routing to be performed from an upstream CDN to an open cache system. This version has been updated to address the Manifest Rewrite routing scheme.

Participating Companies

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