{"id":18575,"date":"2010-04-21T21:56:30","date_gmt":"2010-04-21T16:26:30","guid":{"rendered":"http:\/\/www.jeffrin.in\/?p=1380"},"modified":"2010-04-21T21:56:30","modified_gmt":"2010-04-21T16:26:30","slug":"tcp-tuning-tcp_rfc1337-2","status":"publish","type":"post","link":"https:\/\/www.trueangle.org\/index.php\/2010\/04\/21\/tcp-tuning-tcp_rfc1337-2\/","title":{"rendered":"What does  rfc 1337 say ?"},"content":{"rendered":"<p>From RFC 1337.<br \/>\nTIME-WAIT<br \/>\nstate removes the hazard of old duplicates for &#8220;fast&#8221; or &#8220;long&#8221; connections, in which clock-driven ISN selection is unable to prevent overlap of the old and new sequence spaces. The TIME-WAIT delay allows all old duplicate segments time enough to die in the Internet before the connection is reopened.<\/p>\n<pre style=\"width:70%;border-color:#ffb502;border-radius:3%;\">\necho 1 &gt; \/proc\/sys\/net\/ipv4\/tcp_rfc1337\n\n \/* FIN arrived, enter true time-wait state. *\/\n                tw-&gt;tw_substate   = TCP_TIME_WAIT;\n                tcptw-&gt;tw_rcv_nxt = TCP_SKB_CB(skb)-&gt;end_seq;\n                if (tmp_opt.saw_tstamp) {\n                        tcptw-&gt;tw_ts_recent_stamp = get_seconds();\n                        tcptw-&gt;tw_ts_recent       = tmp_opt.rcv_tsval;\n                }\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>From RFC 1337. TIME-WAIT state removes the hazard of old duplicates for &#8220;fast&#8221; or &#8220;long&#8221; connections, in which clock-driven ISN selection is unable to prevent overlap of the old and new sequence spaces. The TIME-WAIT delay allows all old duplicate segments time enough to die in the Internet before the connection is reopened. echo 1 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.trueangle.org\/index.php\/2010\/04\/21\/tcp-tuning-tcp_rfc1337-2\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;What does  rfc 1337 say ?&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[19],"tags":[1386,1548,1606],"_links":{"self":[{"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/posts\/18575"}],"collection":[{"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/comments?post=18575"}],"version-history":[{"count":0,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/posts\/18575\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/media?parent=18575"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/categories?post=18575"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.trueangle.org\/index.php\/wp-json\/wp\/v2\/tags?post=18575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}