I= 2 $KIP %l%$%d$K$*$1$k>CHq;~ 4V$NHf3S$r<($9!#I=$K $*$$$F!"Aw?. ;~4V$H$OTCP/UDP %l%$%d$+$i $NAw?. MW5a$r <u$1$F$+$i %M%C%H%o!<%/%$%s%?!<%U%'%$%9%l%$%d$KAw?. MW 5a$r=P$9$^$G$N;~ 4V!" Cf7Q;~ 4V$H$O%M%C%H%o!<%/%$%s%?!< %U%'%$%9%l%$%d$+$i <u?. DLCN$r<u$1$F$+$i %M%C%H%o!<%/%$ %s%?!<%U%'%$%9%l%$%d$KAw?. MW5a$r =P$9$^$G$N;~ 4V!" <u?. ;~ 4V$H$O%M%C%H%o!<%/%$%s%?!<%U%'%$%9%l%$%d$+$i <u?. DL CN$r <u$1$F$+$i TCP/UDP %l%$%d$K<u?. DLCN$rAw$k$^$G $N;~ 4V$G$"$k!#I=$O%*%j%8%J%k$NNEWS-OS 4.0 $N>l9g$H VIP $r <BAu$7$?>l9g$K$D$$$FB,Dj$7$?7k2L$r<($7$F$$$k!# $3$N7k2L!" VIP $r <BAu$7$?>l9g!" IP $N$_<BAu$7$?>l 9g$K Hf$Y$FAw?. ;~ $K104 ?sec !" Cf7Q;~ $K82 ?sec !" <u?. ;~ $K 57 ?sec $N%*!<%P!<%X%C%I$, @8$8$k$3$H$, $o$+$C$?!#9-0h %M%C%H%o!<%/>e$N$9$Y$F$N%[%9%H$d%2!<%H%&%'%$$, SONY NEWS $HF1Ey$N=hM}G=NO$r ;} $D$H2>Dj$9$k$H!" %(%s%I!&%( %s%I4V$NE>Aw;~4V$N%*!<%P!<%X%C%I$O0J2<$N<0$GI=$5$l $k!# $3$3$GNhop $O%[%C%W?t $rI=$9!#

total overhead = 104 + 82 ?Nhop + 57
= 82 ?Nhop + 161 (?sec)

%=%K!<$K$*$1$k WIDE %$%s%?!<%M%C%H$N%2!<%H%&%'%$ $G$"$k scslwide.sony.co.jp $+$i !" 9qFb$*$h$SJF9q$N$$$D$+ $N%[%9%H$K$D$$$FE>Aw;~ 4V$H%[%C%W?t $rB,Dj$7!" >e<0$K$h $j %*!<%P!<%X%C%I$N8+@Q$j $r<($7$?$N$, I= 3 $G$"$k!#E>Aw ;~ 4V$H%[%C%W?t $OICMP ECHO %Q%1%C%H(ping %3%^%s%I $Htraceroute %3%^%s%I) $rMQ$$$F9T$J$C$?!#$3$N7k2L!"$b$7 $9$Y$F$N%2!<%H%&%'%$$, SONY NEWS $HF1Ey$N=hM}G=NO $r ;} $A!" $9$Y$F$N%2!<%H%&%'%$$, VIP $r<BAu$7$F$b!" %*!< %P!<%X%C%I$O1 % A08e$G:Q$`$3$H$, $o$+$k!#$3$l $O<BMQ>e L5;k $G$-$kCM$G$"$k!#

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host name hop IP xmit estimated overhead sh.wide.ad.jp 4 30 msec 0.49 msec (1.6 %) astem.or.jp 4 45 msec 0.49 msec (1.1 %) kyushu-u.ac.jp 7 120 msec 0.74 msec (0.6 %) sony.com 12 150 msec 1.15 msec (0.8 %) mit.mit.edu 22 200 msec 1.97 msec (1.0 %)

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[Cohen 91] Danny Cohen, Jonathan B. Postel, and Raphael Rom. IP Addressing and Routing in a Local Wireless Network. Technical Report, University of Southern California, July 1991.

[Croft 85] Bill Croft. Bootstrap Protocol (BOOTP). September 1985. RFC951.

[Finlayson 84] R. Finlayson, T. Mann, J. C. Mogul, and M. Theimer. Reverse Address Resolusion Protocol. June 1984. RFC903.

[Ioannidis 91] John Ioannidis, Dan Duchamp, and Gerald Q. Maguire Jr. IP-based Protocols for Mobile Internetworking. In Proceedings of ACM SIGCOMM'91, September 1991.

[Sunshine 80] C. Sunshine and J. Postel. Addressing Mobile Hosts in the ARPA Internet Environment. March 1980. IEN135.

[Teraoka 91] Fumio Teraoka, Yasuhiko Yokote, and Mario Tokoro. A Network Architecture Providing Host Migration Transparency. In Proceedings of ACM SIG- COMM'91, September 1991.

[Yokote 91] Yasuhiko Yokote, Fumio Teraoka, Atsushi Mitsuzawa, Nobuhisa Fujinami, and Mario Tokoro. The Muse Object Architecture: A New Operating System Structuring Concept. Operating Systems Review, Vol.25, No.2, February 1991.