Hi,
You can see my code attached. I cann not get .nam output for it.
I get node x is not defined warning.
Any help is appreciated.
Regards
#
======================================================================
# Define options
# ======================================================================
set val(chan) Channel/WirelessChannel ;# channel type
set val(prop) Propagation/TwoRayGround ;# radio-propagation model
set val(netif) Phy/WirelessPhy ;# network interface type
set val(mac) Mac/802_11 ;# MAC type
set val(ifq) Queue/DropTail/PriQueue ;# interface queue type
set val(ll) LL ;# link layer type
set val(ant) Antenna/OmniAntenna ;# antenna model
set val(ifqlen) 50 ;# max packet in ifq
set val(nn) 4 ;# number of mobilenodes
set val(rp) DSDV ;# routing protocol
# ======================================================================
# Main Program
# ======================================================================
#
# Initialize Global Variables
#
set ns_ [new Simulator]
set tracefd [open simple4d.tr w]
set namtrace [open simple4d.nam w]
$ns_ use-newtrace
# set up topography object
set topo [new Topography]
$topo load_flatgrid 200 200
$ns_ trace-all $tracefd
$ns_ namtrace-all-wireless $namtrace 200 200
#
# Create God
#
create-god $val(nn)
#
# Create the specified number of mobilenodes [$val(nn)] and "attach" them
# to the channel.
# Here two nodes are created : node(0) and node(1)
# configure node
$ns_ node-config -adhocRouting $val(rp) \
-llType $val(ll) \
-macType $val(mac) \
-ifqType $val(ifq) \
-ifqLen $val(ifqlen) \
-antType $val(ant) \
-propType $val(prop) \
-phyType $val(netif) \
-channelType $val(chan) \
-topoInstance $topo \
-agentTrace ON \
-routerTrace ON \
-macTrace OFF \
-movementTrace OFF
for {set i 0} {$i < $val(nn) } {incr i} {
set node_($i) [$ns_ node]
$node_($i) random-motion 0 ;# disable random motion
}
#
# Provide initial (X,Y, for now Z=0) co-ordinates for mobilenodes
#
$node_(0) set X_ 20.0
$node_(0) set Y_ 40.0
$node_(0) set Z_ 0.0
$node_(1) set X_ 20.0
$node_(1) set Y_ 20.0
$node_(1) set Z_ 0.0
$node_(2) set X_ 30.0
$node_(2) set Y_ 40.0
$node_(2) set Z_ 0.0
$node_(3) set X_ 30.0
$node_(3) set Y_ 20.0
$node_(3) set Z_ 0.0
# Setup traffic flow between nodes
# TCP connections between node_(0) and node_(1)
set tcp [new Agent/TCP]
$tcp set class_ 2
set sink [new Agent/TCPSink]
$ns_ attach-agent $node_(0) $tcp
$ns_ attach-agent $node_(1) $sink
$ns_ connect $tcp $sink
set ftp [new Application/FTP]
$ftp attach-agent $tcp
$ns_ at 10.0 "$ftp start"
set tcp [new Agent/TCP]
$tcp set class_ 2
set sink [new Agent/TCPSink]
$ns_ attach-agent $node_(2) $tcp
$ns_ attach-agent $node_(3) $sink
$ns_ connect $tcp $sink
set ftp [new Application/FTP]
$ftp attach-agent $tcp
$ns_ at 10.0 "$ftp start"
#
# Tell nodes when the simulation ends
#
for {set i 0} {$i < $val(nn) } {incr i} {
$ns_ at 100.0 "$node_($i) reset";
}
$ns_ at 100.0 "stop"
$ns_ at 100.01 "puts \"NS EXITING...\" ; $ns_ halt"
proc stop {} {
global ns_ tracefd
$ns_ flush-trace
close $tracefd
}
puts "Starting Simulation..."
$ns_ run
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