PPSP Tracker Protocol--Extended Protocol
draft-huang-ppsp-extended-tracker-protocol-02

PPSP                                                        Rachel Huang
INTERNET-DRAFT                                                 Ning Zong
Intended Status: Standards Track                                  Huawei
Expires: August 29, 2013                                     Rui S. Cruz
                                                          Mario S. Nunes
                                                       IST/INESC-ID/INOV
                                                         Joao P. Taveira
                                                       February 25, 2013

                PPSP Tracker Protocol--Extended Protocol
             draft-huang-ppsp-extended-tracker-protocol-02

Abstract

This document specifies an extended Peer-to-Peer Streaming Protocol -
Tracker Protocol, which is a new extension protocol complementing the
basic core messages and usages specified in the base tracker protocol 
for the exchange of meta information between trackers and peers, such as
initial offer/request of participation in multimedia content streaming,
content information, peer lists and reports of activity and status. It
extends the base tracker protocol to include new optional messages
providing new usages in the communications between peer and tracker. The
extension protocol is retro-compatible with the base tracker protocol.

Status of this Memo

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Huang, et al.           Expires August 29, 2013                 [Page 1]
INTERNET DRAFT                PPSP-TP/1.1              February 25, 2013

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Motivation . . . . . . . . . . . . . . . . . . . . . . . . . .  4
   4.  The extended Tracker Protocol Overview . . . . . . . . . . . .  5
     4.1. Extended Request Messages . . . . . . . . . . . . . . . . .  5
       4.1.1. Enhanced Request Messages . . . . . . . . . . . . . . .  5
       4.1.2. New Request Messages  . . . . . . . . . . . . . . . . .  6
     4.2. Usage of Extended Request Messages  . . . . . . . . . . . .  6
     4.3. Extended Tracker Transaction State Machine  . . . . . . . .  8
       4.3.1. Normal Operation  . . . . . . . . . . . . . . . . . . .  9
       4.3.2. Error Conditions  . . . . . . . . . . . . . . . . . . . 10
     4.4. Request/Response Syntax and Format  . . . . . . . . . . . . 11
       4.4.1. Extended Semantics of PPSPTrackerProtocol Elements  . . 11
       4.4.2. Extended Request/Response Element in Request Messages . 15
     4.5. Compatibility with the Base Tracker Protocol  . . . . . . . 15
   5. Request/Response Processing . . . . . . . . . . . . . . . . . . 15
     5.1. Extended CONNECT Request  . . . . . . . . . . . . . . . . . 16
     5.2. DISCONNECT Request  . . . . . . . . . . . . . . . . . . . . 18
     5.3. FIND Request  . . . . . . . . . . . . . . . . . . . . . . . 18
     5.4. Extended STAT_REPORT Request  . . . . . . . . . . . . . . . 21
     4.6. Error and Recovery Conditions . . . . . . . . . . . . . . . 23
   5. Security Considerations . . . . . . . . . . . . . . . . . . . . 24
   6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 24
   7. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . 24
   8  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 25
     8.1  Normative References  . . . . . . . . . . . . . . . . . . . 25