MPTCP – MULTIPATH TCP WG meeting Tuesday 23 rd & Friday 26 th March 2010 Anaheim, ietf-77

What is MPTCP? Add the capability of simultaneously using multiple paths to a regular TCP session

Admin Chairs –Philip Eardley –Yoshifumi Nishida Scribes Jabber Please include “-mptcp-” in your draft names Please SIGN blue sheets Please say your name at mike

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Progress Good progress since last IETF on implementations, drafts & architecture consensus Interim meeting held 2 WG docs created

Schedule Mar 2010: Established WG consensus on the architecture, high-level design decisions –WG doc created –Proposal: WG last call as soon as possible Assume options vs payload resolved here Authors want another rev Deadline for going to IESG is Aug 2010, but think we’re ahead here Aug 2010: security threats –WG doc created –Needs more input and reviewing! Mar 2011: congestion control; –We have a candidate algorithm – are there any alternatives? –Proposal: create WG doc very soon protocol specification for MPTCP extensions –We have a candidate proposal – are there any alternatives? –Proposal: create WG doc very soon Extended API –Continue working on current doc(s) Application considerations –Continue working on current doc(s)

Advert: MPTCP Implementers’ workshop July 24, 2010 in Maastricht, 2pm Organised under the auspices of the WG But NOT a WG meeting Objective - to help make MPTCP real Interactive discussion with the OS and applications communities about their requirements and needs, in order to influence and improve the MPTCP protocol design –OS implementers get it implemented in many operating systems Real world requirements, constraints, stumbling blocks –Application designers get it used by key applications Gotchas, increasing MPTCP’s usefulness So far: we have polled people in various OS communities – good enough response to decide to go ahead Limited space –Register in advance –Priority to implementers

Agenda Session 1: Tuesday 3.30 – 5.20pm Architecture - Alan Ford Protocol - Alan Ford –options vs payload discussion - Costin Raicu Session 2: Friday 9.00 – 11.30am (if needed) architecture discussion continues Threats - Marcelo Bagnulo Congestion control - Mark Handley API - Michael Scharf Af-multipath - Pasi Sarolahti Named oriented APi -Javier Ubillos