Van Jacobson TCP/IP Header Compression: Difference between revisions

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{{unreferencedmore citations|date=March 2021}}

'''Van Jacobson TCP/IP Header Compression''' is a [[data compression]] protocol described in [[Request for Comments|RFC]] 1144,{{ref RFC|1144}} specifically designed by [[Van Jacobson]] to improve [[Internet protocol suite|TCP/IP]] performance over slow [[serial linkslink]]s. Van Jacobson compression reduces the normal 40 [[byte]] TCP/IP [[packet headersheader]]s down to 3–4 bytes for the average case.; Itit does this by saving the state of TCP connections at both ends of a link, and only sending the differences in the header fields that change. This makes a very big difference for interactive performance on low speed links, although it will not do anything about the [[processing delay]] inherent to most [[dial-up modemsmodem]]s.

Van Jacobson Header Compression (also VJ compression, or just Header Compression) is an option in most versions of [[Point-to-Point Protocol|PPP]]. Versions of [[Serial Line Internet Protocol]] (SLIP) with VJ compression are often called [[CSLIP]] (Compressed SLIP).

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[[Category:Data compression]]

[[Category:TCP extensions]]

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