Automating the Initial Window in TCP

Document Type Expired Internet-Draft (individual)
Author Joseph Touch 
Last updated 2013-01-17 (latest revision 2012-07-16)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The Initial Window (IW) provides the starting point for TCP's feedback-based congestion control algorithm. Its value has increased over time to increase performance and to reflect increased capability of Internet devices. This document describes a mechanism to adjust the IW over long timescales, to make future changes more safely deployed and to potentially avoid reexamination of this value in the future.


Joseph Touch (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)