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PPSP Base Tracker Protocol

PPSP Base Tracker Protocol. draft- cruz -ppsp-base-tracker-protocol PPSP WG IETF 84 Vancouver Yingjie Gu (presenter) Rui Cruz, Mário Nunes, Jinwei Xia, João Taveira, Deng Lingli. Recap. The Base Tracker Protocol uses two messages for the operation:

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PPSP Base Tracker Protocol

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  1. PPSP Base Tracker Protocol draft-cruz-ppsp-base-tracker-protocol PPSP WG IETF 84 Vancouver Yingjie Gu (presenter) Rui Cruz, Mário Nunes, Jinwei Xia, João Taveira, Deng Lingli

  2. Recap • The Base Tracker Protocol uses two messages for the operation: • a CONNECT Request message to “register” and/or request actions on swarm(s) of streaming contents; • a STAT-REPORT Request messageto periodically inform the Tracker about its status and supply statistic information; • To terminate all its activity in the P2P streaming service the Peer may: • Send a CONNECT Requesting action to LEAVE swarm(s); • Stop sending periodic STAT_REPORT;

  3. Open issues from IETF 84 • IP Address in TP request? • Encoding?

  4. Revision record • IP address is optional in request message from Peer to Tracker, and mandatory in response Peer list from Tracker to Peer. • Encoding is irrelevant to protocol design. Move section 7.1 to Appendix.

  5. Detail consideration • IP address issue: If a peer has public IP addresses, the Tracker can get it from the packet header. If a peer is behind NAT, in most case, providing private IP address in request message won’t help.

  6. Next Step • We ask the WG to adopt draft-cruz-ppsp-base-tracker-protocol as a WG item.

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