RFC 5827

Early Retransmit for TCP and Stream Control Transmission Protocol (SCTP), May 2010

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M. Allman
K. Avrachenkov
U. Ayesta
J. Blanton
P. Hurtig
tcpm (wit)

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DOI:  https://doi.org/10.17487/RFC5827

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This document proposes a new mechanism for TCP and Stream Control Transmission Protocol (SCTP) that can be used to recover lost segments when a connection's congestion window is small. The "Early Retransmit" mechanism allows the transport to reduce, in certain special circumstances, the number of duplicate acknowledgments required to trigger a fast retransmission. This allows the transport to use fast retransmit to recover segment losses that would otherwise require a lengthy retransmission timeout. [STANDARDS-TRACK]

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.

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