www.pudn.com > UDP-based_Reliable_Data_Transfer_Library.zip > sim.tcl

set ns [new Simulator]

$ns color 0 red
$ns color 1 blue
$ns color 2 chocolate
$ns color 3 green
$ns color 4 brown
$ns color 5 tan
$ns color 6 gold
$ns color 7 black
$ns color 8 yellow
$ns color 9 purple


#
# Trace and NAM files
#
set nf [open out.nam w]
#$ns namtrace-all $nf

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

set qf [open out.q w]

proc finish {} {
        global ns nf
        global ns tf

        $ns flush-trace

        close $nf
        close $tf

#        exec nam out.nam &
        exit 0
}


#
# Nodes
#
set na [$ns node]
$na color "red"
set nb [$ns node]
$nb color "red"
set nc [$ns node]
$nb color "red"
set na0 [$ns node]
$na0 color "blue"
set na1 [$ns node]
$na1 color "blue"
set nb0 [$ns node]
$nb0 color "tan"
set nb1 [$ns node]
$nb1 color "tan"

#
# Major Link, queue, and queue monitor
#
$ns duplex-link $na $nb 1000Mb 50ms DropTail
$ns queue-limit $na $nb 10000

#$ns queue-limit $nb $na 100

#$ns duplex-link $nb $nc 1000Mb 55ms DropTail
#$ns queue-limit $nb $nc 100
#$ns duplex-link-op $na $nb orient right
#$ns duplex-link-op $na $nb color "green"
#$ns duplex-link-op $na $nb queuePos 0.5
#$ns trace-queue $na $nb $qf
#$ns monitor-queue $na $nb $qf 0.1
#[$ns link $na $nb] start-tracing

#
# Error model
#
#set em [new ErrorModel]
#$em unit pkt
#$em set rate_ 0.0000001
#$em ranvar [new RandomVariable/Uniform]
#$em drop-target [new Agent/Null]
#$ns link-lossmodel $em $na $nb

#
# Supportive link
#
#$ns duplex-link $na1 $na 100Mb 0.045ms DropTail
#$ns queue-limit $na1 $na 1000
#$ns duplex-link-op $na1 $na orient 60deg

#$ns duplex-link $na0 $na 100Mb 0.495ms DropTail
#$ns queue-limit $na0 $na 1000
#$ns duplex-link-op $na0 $na orient 360deg

#$ns duplex-link $nb0 $na 100Mb 4.995ms DropTail
#$ns queue-limit $nb0 $na 1000
#$ns duplex-link-op $nb0 $na orient 0deg

#$ns duplex-link $nb1 $na 100Mb 49.995ms DropTail
#$ns queue-limit $nb1 $na 1000
#$ns duplex-link-op $nb1 $na orient 60deg


#
# functions for set up TCP, CBR, and UDT flows
#
source proc.tcl


#
# Testing cases
#
#build-tcp Sack $na $nb 1460 1000000000 1 0
#build-tcp Sack $nb $na 1460 1000000000 2 0

build-udt $na $nb 1500 100000 0 0
build-udt $na $nb 1500 100000 1 0

#build-udt $na1 $nb 1500 100000 1 0
#build-udt $na0 $nb 1500 100000 2 0
#build-udt $nb0 $nb 1500 100000 3 0
#build-udt $nb1 $nb 1500 100000 4 0


#for {set i 100} {$i < 101} {incr i} {
#   build-on-off $na $nb 1500 1.0 2.0 100000k $i 0
#}

#for {set i 0} {$i < 10} {incr i} {
#   build-udt $na $nb 1500 1000000 $i 0
#}

#for {set i 0} {$i < 1} {incr i} {
#   build-tcp Sack $na $nb 1460 1000000000 $i 0
#}

#build-cbr $nb $na 90000k 999 0 100


#
# End here
#
$ns at 100 finish

$ns run