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> [IP $B%*%W%7%g%s(B]
> $B!&(BMTU Probe, MTU Ready
>   (in RFC1191 $B$H$"$k$,!"(BRFC1191 $B$K$O$3$l$i$N=Q8l$O$J$$(B)

$B=Q8l$O$J$$$1$I(B

RFC1063 IP MTU discovery options. J.C. Mogul, C.A. Kent, C. Partridge, K.
     McCloghrie. Jul-01-1988. (Format: TXT=27121 bytes) (Obsoleted by
     RFC1191) (Status: UNKNOWN)

RFC1191 Path MTU discovery. J.C. Mogul, S.E. Deering. Nov-01-1990.
     (Format: TXT=47936 bytes) (Obsoletes RFC1063) (Status: DRAFT
     STANDARD)

$B$J$s$+(B $BF0E*$K(B MTU$B$r5a$a$kJ}K!$C$]$$$G$9$h$M!#(B

Abstract

   This memo describes a technique for dynamically discovering the
   maximum transmission unit (MTU) of an arbitrary internet path.  It
   specifies a small change to the way routers generate one type of ICMP
   message. 

ICMP$B%a%C%;!<%8$G(B $B$J$s$+$d$k$h$&$G$9$M!#(B

$B$A$e$&$o$1$G(B
> $B!&(BMTU Probe, MTU Ready

Probe$B$NJ}$O(B discovery $B$_$?$$$J$b$s$G$7$g$&!#(B
Ready$B$NJ}$O(B $B$b$7$+$9$k$HESCf$N%k!<%?$KBP$7$F$b(B MTU$B$sCM$r%j%/%(%9%H$G$-(B
$B$?$j$7$F(B $B$=$l$,(BOK$B$@$H(B Ready$B$NJV;v$,5"$C$F$/$k(B $B$H$+$$$&$7$/$_$J$N$G$O$J(B
$B$$$G$7$g$&$+!)(B
--
$BEl5~9)6HBg3X(B $BAm9g>pJs=hM}%;%s%?!<(B $B%M%C%H%o!<%/%7%9%F%`1?MQ3](B
	$BHSEg(B $B><Gn(B (Akihiro Iijima) aki@noc.titech.ac.jp

