Improving SACK-based loss recovery for TCP

Document Type Expired Internet-Draft (individual)
Author Richard Scheffenegger 
Last updated 2010-11-15
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This note clarifies the behavior of TCP SACK while doing loss recovery close to the end-of-stream. This allows TCP SACK to never exhibit worse loss recovery characteristics than TCP NewReno under identical circumstances.


Richard Scheffenegger (

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