<?xml version='1.0'?>

<reference anchor='RFC1323'>

<front>
<title>TCP Extensions for High Performance</title>
<author initials='V.' surname='Jacobson' fullname='Van Jacobson'>
<organization>University of California Berkeley, Lawrence Berkeley Laboratory</organization>
<address>
<postal>
<street>Mail Stop 46A</street>
<city>Berkeley</city>
<region>CA</region>
<code>94720</code>
<country>US</country></postal>
<phone>+1 415 486 6411</phone>
<email>van@CSAM.LBL.GOV</email></address></author>
<author initials='B.' surname='Braden' fullname='Bob Braden'>
<organization>University of Southern California (USC), Information Sciences Institute</organization>
<address>
<postal>
<street>4676 Admiralty Way</street>
<city>Marina del Rey</city>
<region>CA</region>
<code>90292</code>
<country>US</country></postal>
<phone>+1 310 822 1511</phone>
<email>Braden@ISI.EDU</email></address></author>
<author initials='D.' surname='Borman' fullname='Dave Borman'>
<organization>Cray Research</organization>
<address>
<postal>
<street>655-E Lone Oak Drive</street>
<city>Eagan</city>
<region>MN</region>
<code>55121</code>
<country>US</country></postal>
<phone>+1 612 683 5571</phone>
<email>dab@cray.com</email></address></author>
<date month='May' year='1992' />
<abstract>
<t>This memo presents a set of TCP extensions to improve performance over large bandwidth*delay product paths and to provide reliable operation over very high-speed paths.  It defines new TCP options for scaled windows and timestamps, which are designed to provide compatible interworking with TCP's that do not implement the extensions.  The timestamps are used for two distinct mechanisms: RTTM (Round Trip Time Measurement) and PAWS (Protect Against Wrapped Sequences).  Selective acknowledgments are not included in this memo.</t>
<t>This memo combines and supersedes RFC-1072 and RFC-1185, adding additional clarification and more detailed specification.  Appendix C summarizes the changes from the earlier RFCs.</t></abstract></front>

<seriesInfo name='RFC' value='1323' />
</reference>
