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TCP Extensions for High Performance
RFC 7323

Revision differences

Document history

Date By Action
2026-05-20
(System) Changed metadata: changed keywords to '['Timestamps', 'Timestamp', 'RTT', 'RTTM', 'Window Scale', 'PAWS', 'TCP options']' from '[]'
2026-05-20
(System) Metadata update from RFC Editor
2026-05-20
(System)
Changed author "R. Scheffenegger": changed name from "Richard Scheffenegger" to "R. Scheffenegger", changed is_editor from "False" to "True", cleared country (was "Austria"), changed order from …
Changed author "R. Scheffenegger": changed name from "Richard Scheffenegger" to "R. Scheffenegger", changed is_editor from "False" to "True", cleared country (was "Austria"), changed order from "3" to "4"
2026-05-20
(System) Changed author "V. Jacobson": changed name from "Van Jacobson" to "V. Jacobson", cleared country (was "USA"), changed order from "2" to "3"
2026-05-20
(System) Changed author "B. Braden": changed name from "Robert Braden" to "B. Braden", cleared country (was "USA"), changed order from "1" to "2"
2026-05-20
(System) Changed author "D. Borman": changed name from "David Borman" to "D. Borman", cleared country (was "USA"), changed order from "0" to "1"
2026-05-20
(System) Metadata update from RFC Editor
2018-12-29
(System) Received changes through RFC Editor sync (added Errata tag)
2018-12-20
(System)
Received changes through RFC Editor sync (changed abstract to 'This document specifies a set of TCP extensions to improve performance over paths with a large …
Received changes through RFC Editor sync (changed abstract to 'This document specifies a set of TCP extensions to improve performance over paths with a large bandwidth * delay product and to provide reliable operation over very high-speed paths. It defines the TCP Window Scale (WS) option and the TCP Timestamps (TS) option and their semantics. The Window Scale option is used to support larger receive windows, while the Timestamps option can be used for at least two distinct mechanisms, Protection Against Wrapped Sequences (PAWS) and Round-Trip Time Measurement (RTTM), that are also described herein.

This document obsoletes RFC 1323 and describes changes from it.')
2015-10-14
(System) Notify list changed from tcpm-chairs@ietf.org, draft-ietf-tcpm-1323bis@ietf.org to (None)
2014-09-19
(System) RFC published