Hello ALL,
I am trying to visualize the entire simulation using NAM. I open the .nam file
in the finish procedure. I have associated CBR source with one of the nodes to
make it send packets to another node. NAM executes properly at the beginning
(but does not show nodes at all), as soon as the scheduled time of sending
packets arrive NAM exits. Although it generates the trace file.
Please write back soon
Heres the code...
# ======================================================================
# 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) 3 ;# number of mobilenodes
set val(rp) AODV ;# routing protocol
set val(x) 880 ;# x-axis of grid
set val(y) 880 ;# y-axis of grid
set opt(energymodel) EnergyModel ;
set opt(radiomodel) RadioModel ;
set opt(initialenergy) 1000 ;# Initial energy in Joules
set num_ms_nodes 10;
set opt(nn) 2;
# ======================================================================
# Main Program
# ======================================================================
#
# Initialize Global Variables
#
#start the simulator
set ns [new Simulator]
#open the trace file
set tracefile1 [open a.tr w]
$ns trace-all $tracefile1
#Open NAM file
set nf [open attachment.nam w]
$ns namtrace-all $nf
#define the procedure finish
#proc finish {} {
#global ns tracefile1
#$ns flush-trace
#close $tracefile1
#exit 0
#}
proc finish {} {
global ns nf
$ns flush-trace
close $nf
exec /home/faraz/Desktop/ns-allinone-2.33/nam-1.13/nam attachment.nam &
exit 0
}
# set up topography object
set topo [new Topography]
$topo load_flatgrid $val(x) $val(y)
# Create God General Operations Director
create-god [expr $opt(nn) + $num_ms_nodes]
# Create channel #1 and #2
set chan_1_ [new $val(chan)]
#
# Create the specified number of mobilenodes [$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) \
-topoInstance $topo \
-agentTrace OFF \
-routerTrace ON \
-macTrace OFF \
-movementTrace OFF\
-channel $chan_1_
#-energyModel $opt(energymodel) \
-idlePower 1.0 \
-rxPower 1.0 \
-txPower 1.0 \
-sleepPower 0.001 \
-transitionPower 0.2 \
-transitionTime 0.005 \
-initialEnergy $opt(initialenergy)
for {set i 0} {$i < $val(nn) } {incr i} {
set node_($i) [$ns node]
$node_($i) random-motion 0 ;# disable random motion
}
set udp0 [new Agent/UDP]
$ns attach-agent $node_(0) $udp0
set cbr0 [new Application/Traffic/CBR]
$cbr0 set packetSize_ 1000
$cbr0 set interval_ 0.005
$cbr0 attach-agent $udp0
set null0 [new Agent/Null]
$ns attach-agent $node_(1) $null0
$ns connect $udp0 $null0
$ns at 1 "$cbr0 start"
$ns at 4 "$cbr0 stop"
$ns at 4.1 "finish"
puts "Starting Simulation..."
$ns run
