BoF CDNI IETF80 – Prague Content Distribution Network Interconnection (CDNI) Experiments Gilles Bertrand, France Telecom Francois Le Faucheur, Cisco Larry.

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Presentation transcript:

BoF CDNI IETF80 – Prague Content Distribution Network Interconnection (CDNI) Experiments Gilles Bertrand, France Telecom Francois Le Faucheur, Cisco Larry Peterson, Verivue © 2011 Verivue, Inc. All rights reserved.

Verivue CoBlitz Configuration and Operation Setting Two Network Operators France Telecom (FT) Polish Telecom (TP) Two CDN Vendors Cisco Verivue Objectives Demonstrate simple CDN Interconnection Discover what we don’t know Limited Scope Request Routing and Content Acquisition Metadata configured manually Content Service Provider CDN A CDN B End User Chapter Objectives This chapter discusses: Video delivery trends; © 2011 Verivue, Inc. All rights reserved. Chapter 2: Content Distribution Network Overview rev. 1.0a

Request Routing End-User CDN B CDN A Origin Server DNS FQDNA IPaddr ofA’s RR HTTP URLA 302 URLB DNS FQDNB IPaddr of B’s Delivery Node HTTP URLB DNS FQDNA’ IPaddr of A’s Delivery Node Origin Server HTTP URLA’ Data Data

Lessons Nothing beats experience building and using a system Implementing introduces practical trade-offs into the design Implementing encourages feature-prioritization Feasibility demonstrated with… In-band signaling using existing protocols (HTTP & DNS) Minimal metadata and maximal CDN opaqueness We’ve only scratched the surface Many features not yet explored (e.g., purge, reporting) Relied on assumptions and conventions in lieu of standards © 2011 Verivue, Inc. All rights reserved.