1 89th IETF, London, UK TCP Timestamps revisited Mirja Kühlewind Richard Scheffenegger Brain Trammell tools.ietf.org/html/draft-scheffenegger-tcpm-timestamp-negotiation-05.

Slides:

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Presentation transcript:

1 89th IETF, London, UK TCP Timestamps revisited Mirja Kühlewind Richard Scheffenegger Brain Trammell tools.ietf.org/html/draft-scheffenegger-tcpm-timestamp-negotiation-05 tools.ietf.org/html/draft-trammell-tcpm-timestamp-interval-01

Motivation  TS option seen as high-overhead  1323bis discussions indicated interest in changing TS option semantics to allow  “Late” TS option activation  Synergy with SACK option  Enabling additional capabilities  TS interval exposure  Multiple event detection in window  lost retransmissions (and recovery)  false retransmissions  Improving TS option security 2 89th IETF, London, UK

tcpm-timestamp-negotiation-05  Semantic change of TS w/ SACK  State machine and negotiation needs rework tcpm-timestamp-interval-01  Exposing timestamp clock interval  Experimental Option (using RFC6994)  Refined encoding and guidance 3 89th IETF, London, UK

Next steps  Support to adopt this work as WG item(s)?  Comments 4 89th IETF, London, UK

5