Retransmission Timeout Considerations

Document Type Replaced Internet-Draft (individual)
Author Mark Allman 
Last updated 2016-05-26 (latest revision 2015-11-23)
Replaced by RFC 8961
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Each implementation of a retransmission timeout mechanism must balance correctness and timeliness and therefore no implementation is suits all situations. This document provides for high-level guidance for retransmission timeout schemes appropriate for general use in the Internet. Within the guidelines, implementations have latitude to define particulars that best address each situation. Terminology


Mark Allman (

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