exercicio2.tcl

set ns [new Simulator]

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

proc fim {} {

    global ns nf
    $ns flush-trace
    close $nf
    exec nam out.nam
    exit 0
}

set n4 [$ns node]
set n1 [$ns node]
set n2 [$ns node]
set n3 [$ns node]

$ns duplex-link $n1 $n2 1Gb 1.67ms DropTail
$ns duplex-link $n3 $n4 6.9Mb 2.31s DropTail

$ns duplex-link-op $n1 $n2 orient right-up
$ns duplex-link-op $n3 $n4 orient right-down

#Novo UDP
set udp1 [new Agent/UDP]
$ns attach-agent $n1 $udp1

#Novo CBR
set cbr1 [new Application/Traffic/CBR]
$cbr1 set packetSize_ 16000000
$cbr1 set interval_ 0.005s
$cbr1 set maxpkts_ 1
$cbr1 attach-agent $udp1

#Novo UDP
set udp2 [new Agent/UDP]
$ns attach-agent $n3 $udp2

#Novo CBR
set cbr2 [new Application/Traffic/CBR]
$cbr2 set packetSize_ 16000000
$cbr2 set interval_ 0.005s
$cbr2 set maxpkts_ 1
$cbr2 attach-agent $udp2

#Novo Null
set null1 [new Agent/Null]
$ns attach-agent $n2 $null1

#Novo Null
set null2 [new Agent/Null]
$ns attach-agent $n4 $null2

$ns connect $udp1 $null1
$ns connect $udp2 $null2

$udp1 set class_ 1
$udp2 set class_ 2

$ns color 1 red
$ns color 2 blue

$ns at 0.5 "$cbr1 start"
$ns at 0.5 "$cbr2 start"

$ns at 4.5 "$cbr1 stop"
$ns at 4.5 "$cbr2 stop"

$ns at 5.0 "fim"
$ns run