Better transport Michael Welzl. KIT, Karlsruhe 15. May 2014. Context. 15 years of almost only transport layer research Because it’s so bad and I’d like to fix it Gradual, deployable (reasonable) Strong focus on IETF (TCP, AQM, WebRTC , TAPS ) RITE EC FP7 project
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15. May 2014
IntServ over DiffServ!
(top-down never had an effect)
Example to the right shows: possible to systematically arrive at a result (table shows services provided by TCP, SCTP, DCCP, UDP-Lite(RFCs, Dec. 2010)
x = always onempty = never onP1 = partial error detectiont = total reliabilityp2 = partial reliability
o = orderedu = unordered
[M. Welzl, S. Jörer, S. Gjessing, "Towards a Protocol-Independent Internet Transport API”,FutureNet workshop, ICC 2011]
Agenda:Introduce problem (Jon Crowcroft)Explain how it could support middlewares (Martin)
Explain how it fits with ongoing IETF work (MIF) (Margaret)Describe what an implementation could look like (Gorry)
Alice … NAT1 … NAT2 … Bob
Example benefits[M. Welzl, F. Niederbacher, S. Gjessing, "Beneficial Transparent Deployment of SCTP: the Missing Pieces", GlobeCom 2011]
Transparent usage of SCTP’s multi-streaming underneath TCP