1. P4P Working Group Doug Pasko, Co-Chair, Verizon
Laird Popkin, Co-Chair, Pando
Haiyong Xie, Principle P4P Researcher, LANS, Yale

2. P4P Mission Statement
To work jointly and cooperatively with leading Internet service providers (ISPs), peer-to-peer (P2P) software distributors, and technology researchers to ascertain appropriate and voluntary best practices to accelerate distribution of content and optimize utilization of ISP network resources in order to provide the best possible performance to end-user customers

3. 60+ P4P WG Members Core Group Observers AT&T Bezeq Intl BitTorrent
Cisco Systems
Comcast
Grid Networks
Joost
LimeWire
Manatt
Oversi
Pando Networks
PeerApp
Solid State
Telefonica Group
Velocix
VeriSign
Verizon
Vuze
University of Toronto
Univ of Washington
Yale University
Observers
Abacast
AHT Intl
AjauntySlant
Akamai
Alcatel Lucent
CableLabs
Cablevision
Cox Comm
Exa Networks
Juniper Networks
Lariat Network
Level 3 Communications
Limelight Networks
Microsoft
MPAA
NBC Universal
Nokia
Orange
Princeton University
RawFlow
RSUC/GweepNet
SaskTel
Solana Networks
Speakeasy Network
Stanford University
Thomson
Time Warner Cable
Turner Broadcasting
UCLA

4. P4P Enables Efficient Delivery
Traditional CDN
P2P
P2P with P4P
Internet Transit
Regional Routers
Edge Network
More Viewers =
Worse performance
Higher cost
More Viewers =
Better performance
Lower cost
Network Aware P2P will reduce costs, improve performance 8

5. P4P: Architecture 2 3 1 4 ISP A peer pTracker iTracker
Use BitTorrent in a single ISP as an example
pTracker runs P2P system
iTracker makes suggestions for peering relationships
Information flow:
peer queries pTracker
pTracker asks iTracker for guidance (occasionally)
iTracker returns high-level peering suggestions
pTracker selects and returns a set of active peers, according to the suggestions
iTracker can be run by trusted third parties, P2P network, or ISP’s.
pTracker
iTracker 2
ISP A 3 1 4
peer 10

6. Network Map (Illustration)
70%
PID1
PID2
20%
30%
PID6
PID3
10%
Each PID has:
IP “prefix”
Uplink/Downlink Capacity
Links (with weights)
Links weights are directional.
60%
PID5
PID4

7. Weight Matrix (Illustration)
Are connected to users in these PID’s
PID1
PID2
PID3
PID4
PID5
PID6
30%
10% 5% 3%
20% 6%
50% 7% 2%
60% 4% 1%
25%
Users in
PID’s

8. Dispelling Myths of P4P

9. P4P Test Methodology
Simulations by Yale on data from AT&T, Telefonica, Verizon
Field Test by Telefonica, Verizon, Yale and Pando.

10. P4P Architecture (for test)
Clients
P2P
Tracker
ISP
iTracker
Telefonica
Weight Matrix
Yale
Pando
Network
Maps
Peer Loc’s
Verizon
iTracker is intermediary between ISP’s and P2P’s
Can be operated by ISP’s
Can be operated by third parties

11. P4P Test Results
Haiyong

12. Slide 18 | Pando Confidential
P4P Test Results
FTTH 209% faster
Non-FTTH 20% faster
Slide 18 | Pando Confidential

13. Implications for ISP’s and P2P’s
Laird Popkin
Doug Pasko

14. Field Tests Multi-ISP Field Test in June
Additional P2P Company Field Tests following shortly

15. Sub-Groups Caching Telco Cable Hardware Standards Research Live P2P
Wireless
IP Policy/Guidelines

16. Questions?

17. Interested? P4P WG is free to join. Monthly phone calls Email List
For more info, Martin Lafferty: or or 15