[問題] 出現浮點錯誤

[herbert1012 (一定要填喔)]

小弟只是在試試剛安裝好的ns2

結果跑了以下tcl檔

內容是


--------------
#try.tcl


set ns [new Simulator]
$ns color 1 Blue
$ns color 2 Red

set nf [open out.nam w]
$ns namtrace-all $nf

set nd [open out.tr w]
$ns trace-all $nd

set s1 [$ns node]
set s2 [$ns node]
set r [$ns node]
set d [$ns node]

$ns duplex-link $s1 $r 2Mb 10ms DropTail
$ns duplex-link $s2 $r 2Mb 10ms DropTail
$ns duplex-link $r $d  1.7Mb 20ms DropTail


$ns duplex-link-op $s1 $r orient right-down
$ns duplex-link-op $s2 $r orient right-up
$ns duplex-link-op $r  $d orient right

$ns duplex-link-op $r $d queuePos 0.5

set tcp [new Agent/TCP]
$tcp set class_ 2
$ns attach-agent $s1 $tcp
set sink [new Agent/TCPSink]
$ns attach-agent $d $sink
$ns connect $tcp $sink
$tcp set fid_ 1


set ftp [new Application/FTP]
$ftp attach-agent $tcp
$ftp set type_ FTP

set udp [new Agent/UDP]
$udp set class_ 1
$ns attach-agent $s2 $udp
set null [new Agent/Null]
$ns attach-agent $d $null
$ns connect $udp $null
$udp set fid_ 2


set cbr [new Application/Traffic/CBR]
$cbr attach-agent $udp
$cbr set type_ CBR
$cbr set packet_size_ 1000
$cbr set rate_ 1000
$cbr set random_ false


$ns at 0.1 "$cbr start"
$ns at 1.0 "$ftp start"
$ns at 4.0 "$ftp stop"
$ns at 4.5 "$cbr stop"


$ns at 4.6 "$ns detach-agent $s1 $tcp ; $ns detach-agent $d $sink"

$ns run
-----------------

結果卻跑出

herbert5812@herbert:~/NSfile$ ns try.tcl
浮點數出錯


然後就什麼都沒跑出來

但是怎麼看都看不出端倪阿= =

來請教各位大大解惑!感激不進!

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推 cassine:通常是發生除以零或是0^0這種錯誤，用gdb抓錯
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