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Article #52

new TCP's keepalive

#52
From: Masato Hirose
Date: Wed, 07 Oct 1992 12:02
19 lines
1523 bytes
$@$$$o$f$k(J'$@?7$7$$(JTCP'$@$N(Jkeepalive$@5!G=$K$D$$$F$N<ALd$G$9(J.

1) 4.3BSD$@$^$G$N(JTCP$@$G$O(Jkeepalive$@%?%$%`%"%&%H$H$7$F(J6$@J,DxEY$G$7$?$,(J,
   4.3BSD reno$@$J$I?7$7$$(JTCP$@$G$O(J2$@;~4V$"$^$j$K$J$C$F$$$^$9(J. $@$3$l$O(J
   $@2?8N$3$&$J$C$?$N$G$7$g$&(J? $@GX7J$J$ICN$j$?$$$H(J$@;W$C$F$$$^$9(J.

2) 4.3BSD$@$^$G$N(JTCP$@$G$O(Jkeepalive$@%?%$%`%"%&%H$,5/$-$?;~%/%i%$%"%s(J
   $@%HB&$XEj$2$k%Q%1%C%H(J$@$O(J, ack=rcv_nxt-1 $@$@$C$?$N$G$9$,(J, $@$3$l$,(J
   $@?7$7$$(JTCP$@$G$O(J ack=rcv_nxt $@$KJQ$o$C$F$$$^$9(J. $@$3$&$9$k$H(J, $@8E(J$@$$(J
   TCP$@$N%^%7%s$H$d$j<h$j$9$k>l9g(J, $@%l%9%]%s%9$,JV$i$:(Jkeepalive$@5!(J
   $@G=$,@5>o$KF/$+$J$$$3$H$K$J$j$^$9(J. $@2?8N$3$N$h$&$KJQ99$5$l$?$N(J
   $@$G$7$g$&(J?

$@0J>e(J2$@E@(J, $@$4B8CN$NJ}$$$i$C$7$c$$$^$7$?$i(J, $@$"$k$$$O!V;d$O$3$&(J$@;W$&!W(J
$@$H$$$&$3$H$G$b7k9=$G$9$N$G65$($F2<$5$$(J.

--
$@9-@%(J $@@5?M(J (hirose@sws.cpd.mei.co.jp)
$@>>2<EE4o;:6H(J($@3t(J) $@>pJs5!4oK\It(J $@%3%s%T%e!<%?3+H/%;%s%?!<(J
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Message-ID: <HIROSE.92Oct7210254@cyber.sws.cpd.mei.co.jp>
Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!spool.mu.edu!darwin.sura.net!sgiblab!adagio.panasonic.com!chorus.mei!oz!hirose

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Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!spool.mu.edu!darwin.sura.net!sgiblab!adagio.panasonic.com!chorus.mei!oz!hirose
From: hirose@sws.cpd.mei.co.jp (Masato Hirose)
Newsgroups: fj.lan
Subject: new TCP's keepalive
Message-ID: <HIROSE.92Oct7210254@cyber.sws.cpd.mei.co.jp>
Date: 7 Oct 92 12:02:54 GMT
Sender: news@sws.cpd.mei.co.jp
Distribution: fj
Organization: Matsushita Electric IND. Co.,Ltd., Osaka, Japan
Lines: 19
Nntp-Posting-Host: cyber