[ns] error while using tracefile in ns-2
Hi,
I was trying to send a trace file using UDP. I am having the following
error,
(I am running ns-2.29 under windows 2000 using xwin32)
warning: no class variable Tracefile::debug_
see tcl-object.tcl in tclcl for info about this warning.
bad file size in videoI11.dat
--- Classifier::no-slot{} default handler (tcl/lib/ns-lib.tcl)---
_012: no target for slot -1
_012 type: Classifier/Hash/Dest
content dump:
classifier _012
0 offset
0 shift
2147483647 mask
1 slots
slot 0: _073 (Classifier/Port)
-1 default
---Finished standard no-slot{} default handler
-
And my tcl script is:
set ns [new Simulator]
set nd [open out_tr.tr w]
$ns trace-all $nd
proc finish {} {
global ns nd
$ns flush-trace
close $nd
exit 0
}
set s1 [$ns node]
set r1 [$ns node]
set r2 [$ns node]
set d1 [$ns node]
$ns duplex-link $s1 $r1 10Mb 1ms DropTail
$ns simplex-link $r1 $r2 10Mb 1ms DropTail
$ns duplex-link $r2 $d1 10Mb 1ms DropTail
set qr1r2 [[$ns link $r1 $r2] queue]
$qr1r2 set limit_ 10
set udp1 [new Agent/UDP]
$ns attach-agent $s1 $udp1
set null1 [new Agent/Null]
$ns attach-agent $d1 $null1
set original_file_name foreman_cif11.txt
set trace_file_name videoI11.dat
set original_file_id [open $original_file_name r]
set trace_file_id [open $trace_file_name w]
set frame_count 0
set last_time 0
set pre_time 0
while {[eof $original_file_id]==0} {
gets $original_file_id current_line
scan $current_line "%d%f%d%d" seq nexttime length type
set time [expr ($nexttime-$pre_time)*100.0]
puts $trace_file_id "$time $length $type"
set pre_time $nexttime
incr frame_count
}
close $original_file_id
close $trace_file_id
set end_sim_time $nexttime
puts "$end_sim_time"
set trace_file [new Tracefile]
$trace_file filename $trace_file_name
set videoI11 [new Application/Traffic/Trace]
$videoI11 attach-agent $udp1
$videoI11 attach-tracefile $trace_file
$ns at 0.0 "$videoI11 start"
$ns at [expr $end_sim_time + 0.5] "$videoI11 stop"
$ns at [expr $end_sim_time + 1.0] "$null1 closefile"
$ns at [expr $end_sim_time + 1.0] "finish"
$ns run
Any help or suggestions will be highly appreciated.
With regards,
Ashfiqua
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