1 / 12

Point to Multipoint Streaming Media Delivery in the Edge Network Problem Statement

Point to Multipoint Streaming Media Delivery in the Edge Network Problem Statement. Draft-litao-p2mpsmd-sam-problem-statement-00.txt. Tao Li Taoli.nudt@gmail.com National University of Defense Technology, P.R China. SAMRG @ IRTF March 25, 2011 Prague. Objective.

obert
Download Presentation

Point to Multipoint Streaming Media Delivery in the Edge Network Problem Statement

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Point to Multipoint Streaming Media Delivery in the Edge Network Problem Statement Draft-litao-p2mpsmd-sam-problem-statement-00.txt Tao Li Taoli.nudt@gmail.com National University of Defense Technology, P.R China SAMRG @ IRTF March 25, 2011 Prague

  2. Objective • Discuss the problems and requirements for point to multipoint (P2MP) streaming media delivery in the edge networks.

  3. STB RG SHE VHO VSO Core/ Backbone Edge/ Metro Access Why we focus on the edge network? From AT&T Labs IPTV Network Architecture SHE: Super head-end VHO: Video hub office VSO: Video serving office HG: Residential gateway STB: Set-top box

  4. Why we focus on the edge network? • Critical position: connects the access network (end users) to the core network • End-to-end principle: keep the simplicity in core network, putting intelligence towards the end points • Deployment of storage servers: such as CDN, separate the P2MP streaming media delivery into 2 phases • Manageability: number of nodes, bandwidth and throughput Feasible solutions here?!

  5. Current Situation • ISP: minimize the amount of the required network resources (such as bandwidth) • End-users: improve QoE (Low delay &jitter, packet loss) • CP/SP: efficient and low-cost deployment, maintenance and management of the service network • Lack of solutions for fulfilling all the requirements…

  6. The weakness of the existing solutions • Delivery strategies is only driven by the downstream users’ requests • No accuracy (Lack of awareness of network states) • No flexibility (No separation between mechanism and policy)

  7. IPTV Use Case Source IPTV Edge Networks Reroute! P2MP Streaming media delivery Congestion! = User Requests + Network state awareness + Policy-based Control Users Requests

  8. Problem Description • Weakness of Network state information (NSI) acquisition • Collect the timely NSI in the edge network,while minimizing interference and maximizing inference accuracy • Lack of integration of policy-based control • Support multiple policies to control the delivery process, while minimizing the modifications of the underlay infrastructure

  9. Architectural Requirements • Network-awared OAM support to CP/SP • timely and accurate information for adaptive decisions • Incremental deployment • Continuity and quality • fast failure recovery • traffic engineering • quality adaption

  10. Next Step • Discuss the utilization of in-network storage • Modify according to the suggestions and comments

  11. Comments and questions?

  12. The 3 areas of the Internet • Core - transit traffic • Edge - access traffic and transit traffic. • Access -end users & end equipment Core STB Edge CPE Access

More Related