Hi
i used Telnet application with tcp in NS2.35 . And i found generated trace
file is empty.
howz it possible??
even in Nam window no data flows.
i tried a lot but could not find the solution.
i tried simple script.
Please have a look once and help me if u can.
Thanks
##############################
set ns [new Simulator]
set mynam [open telnet.nam w]
$ns namtrace-all $mynam
set mytrace [open telnet.tr w]
$ns trace-all $mytrace
set winfile [open telnet.xg w]
proc finish {} {
global ns mynam mytrace
$ns flush-trace
close $mynam
close $mytrace
#exec nam d1.nam &
exit 0
}
set n0 [$ns node]
set n1 [$ns node]
$ns duplex-link $n0 $n1 1Mb 10ms DropTail
$ns queue-limit $n0 $n1 4
set tcp0 [new Agent/TCP]
# $tcp0 set ssthresh_ 50
$ns attach-agent $n0 $tcp0
set telnet0 [new Application/Telnet]
$telnet0 attach-agent $tcp0
$telnet0 set interval_ 20
set sink0 [new Agent/TCPSink]
$ns attach-agent $n1 $sink0
$ns connect $tcp0 $sink0
$ns at 0.5 "$telnet0 start"
$ns at 4.5 "$telnet0 stop"
proc plotWindow {tcpSource file} {
global ns
set time 0.01
set now [$ns now]
set cwnd [$tcpSource set cwnd_]
set wnd [$tcpSource set window_]
set ssthresh [$tcpSource set ssthresh_]
puts $file "$now $cwnd \t \t \t \t \t \t $wnd \t \t \t \t \t $ssthresh"
$ns at [expr $now+$time] "plotWindow $tcpSource $file"
}
$ns at 0.5 "plotWindow $tcp0 $winfile"
$ns at 5.0 finish
$ns run
