[ns] Network Congestion in TCP
Michele R.
mic.rus@libero.it
Sat, 27 Jan 2001 01:09:05 +0100
Messaggio in formato MIME composto da pił parti.
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Hello!
I've a problem...
I've this network topology,where there are two Tcp Vegas senders with =
two ftp application (n0 n1) two routers(n2 n3) and two tcpsink (n4 n5)=20
$ns duplex-link $n0 $n2 10Mb 2ms DropTail
$ns duplex-link-op $n0 $n2 orient right-down
$ns duplex-link $n1 $n2 10Mb 2ms DropTail
$ns duplex-link-op $n1 $n2 orient right-up
$ns duplex-link $n2 $n3 100KB 2ms $tipo_di_coda
$ns duplex-link-op $n2 $n3 orient right
$ns duplex-link $n3 $n4 10Mb 2ms DropTail
$ns duplex-link-op $n3 $n4 orient right-up
$ns duplex-link $n3 $n5 10Mb 2ms DropTail
$ns duplex-link-op $n3 $n5 orient right-down
..my problem is that I try to make the network congestioned with dropped =
packets at the router n2 but I'm not able to do it!!!=20
Thank you for your help.
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<DIV><FONT face=3DArial size=3D2>Hello!</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I've a problem...</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I've this network topology,where there =
are two Tcp=20
Vegas senders with two ftp application (n0 n1) two routers(n2 n3) and =
two=20
tcpsink (n4 n5) </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>$ns duplex-link $n0 $n2 10Mb 2ms =
DropTail<BR>$ns=20
duplex-link-op $n0 $n2 orient right-down</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>$ns duplex-link $n1 $n2 10Mb 2ms =
DropTail<BR>$ns=20
duplex-link-op $n1 $n2 orient right-up</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>$ns duplex-link $n2 $n3 100KB 2ms=20
$tipo_di_coda<BR>$ns duplex-link-op $n2 $n3 orient right</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>$ns duplex-link $n3 $n4 10Mb 2ms =
DropTail<BR>$ns=20
duplex-link-op $n3 $n4 orient right-up</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>$ns duplex-link $n3 $n5 10Mb 2ms =
DropTail<BR>$ns=20
duplex-link-op $n3 $n5 orient right-down</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>..my problem is that I try to make =
the network=20
congestioned with dropped packets at the router n2 but I'm not able to =
do=20
it!!! </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Thank you for your =
help.</FONT></DIV></BODY></HTML>
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