TCP Extensions for High Performance
This specification has been revised 12 times since RFC 1072 (1988). Each document below formally obsoleted the one before it; the versions still in force are listed first.
Revision timeline
Current versions — implement against these
- RFC 2018TCP Selective Acknowledgment OptionsCurrentOctober 1996proposed standard
- RFC 6247Moving the Undeployed TCP Extensions RFC 1072, RFC 1106, RFC 1110, RFC 1145, RFC 1146, RFC 1379, RFC 1644, and RFC 1693 to Historic StatusCurrentMay 2011informational
- RFC 7323TCP Extensions for High PerformanceCurrentSeptember 2014proposed standard
Superseded versions — historical reference only
- RFC 1072TCP extensions for long-delay pathsObsoletedOctober 1988historicreplaced by RFC1323, RFC2018, RFC6247
- RFC 1106TCP big window and NAK optionsObsoletedJune 1989historicreplaced by RFC6247
- RFC 1110Problem with the TCP big window optionObsoletedAugust 1989historicreplaced by RFC6247
- RFC 1145TCP alternate checksum optionsObsoletedFebruary 1990historicreplaced by RFC1146, RFC6247
- RFC 1146TCP alternate checksum optionsObsoletedMarch 1990historicreplaced by RFC6247
- RFC 1185TCP Extension for High-Speed PathsObsoletedOctober 1990experimentalreplaced by RFC1323
- RFC 1323TCP Extensions for High PerformanceObsoletedMay 1992proposed standardreplaced by RFC7323
- RFC 1379Extending TCP for Transactions -- ConceptsObsoletedNovember 1992historicreplaced by RFC6247
- RFC 1644T/TCP -- TCP Extensions for Transactions Functional SpecificationObsoletedJuly 1994historicreplaced by RFC6247
- RFC 1693An Extension to TCP : Partial Order ServiceObsoletedNovember 1994historicreplaced by RFC6247
This lineage is derived automatically from the “obsoletes” relationships recorded in the public RFC Editor index — no editorial judgement is applied to the ordering. The most recent document in the chain is RFC 7323 (September 2014).