Report from the IETF Workshop on Peer-to-Peer (P2P) Infrastructure, May 28, 2008
RFC 5594
Document | Type |
RFC - Informational
(July 2009; No errata)
Was draft-p2pi-cooper-workshop-report (individual in rai area)
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Authors | Jon Peterson , Alissa Cooper | ||
Last updated | 2015-10-14 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 5594 (Informational) | |
Action Holders |
(None)
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Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Cullen Jennings | ||
Send notices to | (None) |
Network Working Group J. Peterson Request for Comments: 5594 NeuStar Category: Informational A. Cooper Center for Democracy & Technology July 2009 Report from the IETF Workshop on Peer-to-Peer (P2P) Infrastructure, May 28, 2008 Abstract This document reports the outcome of a workshop organized by the Real-time Applications and Infrastructure Area Directors of the IETF to discuss network delay and congestion issues resulting from increased Peer-to-Peer (P2P) traffic volumes. The workshop was held on May 28, 2008 at MIT in Cambridge, MA, USA. The goals of the workshop were twofold: to understand the technical problems that ISPs and end users are experiencing as a result of high volumes of P2P traffic, and to begin to understand how the IETF may be helpful in addressing these problems. Gaining an understanding of where in the IETF this work might be pursued and how to extract feasible work items were highlighted as important tasks in pursuit of the latter goal. The workshop was very well attended and produced several work items that have since been taken up by members of the IETF community. Status of This Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Copyright Notice Copyright (c) 2009 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 in effect on the date of publication of this document (http://trustee.ietf.org/license-info). Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Peterson & Cooper Informational [Page 1] RFC 5594 P2P Infrastructure July 2009 Table of Contents 1. Introduction ....................................................3 2. Scoping of the Problem and Solution Spaces ......................4 3. Service Provider Perspective ....................................4 3.1. DOCSIS Architecture and Upstream Contention ................4 3.2. TCP Flow Fairness and Service Flows ........................5 3.3. Service Provider Responses .................................6 4. Application Provider Perspective ................................7 5. Potential Solution Areas ........................................7 5.1. Improving Peer Selection: Information Sharing, Localization, and Caches ...................................8 5.1.1. Leveraging AS Numbers ...............................9 5.1.2. P4P: Provider Portal for P2P Applications ...........9 5.1.3. Multi-Layer, Tracker-Based Architecture ............10 5.1.4. ISP-Aided Neighbor Selection .......................11 5.1.5. Caches .............................................12 5.1.6. Potential IETF Work ................................12 5.2. New Approaches to Congestion Control ......................14 5.2.1. End-to-End Congestion Control ......................15 5.2.2. Weighted Congestion Control ........................15 5.3. Quality of Service ........................................16 6. Applications Opening Multiple TCP Connections ..................17 7. Costs and Congestion ...........................................18 8. Next Steps .....................................................18 8.1. Transport Issues ..........................................19 8.2. Improved Peer Selection ...................................19 9. Security Considerations ........................................19 10. Acknowledgements ..............................................19 11. Informative References ........................................20 Appendix A. Program Committee ....................................21 Appendix B. Workshop Participants ................................21 Appendix C. Workshop Agenda ......................................24 Appendix D. Slides and Position Papers ..........................25 Peterson & Cooper Informational [Page 2] RFC 5594 P2P Infrastructure July 2009 1. Introduction Increasingly, large ISPs are encountering issues with P2P traffic. The transfer of static, delay-tolerant data between nodes on the Internet is a well-understood problem, but traditional management of fairness at the transport level is under strain from applicationsShow full document text