Hi there, In a wireless simulation for nam trace you have to use
$ns namtrace-all-wireless $nf $val(x) $val(y) Hope it works, Luis On Thu, Jan 8, 2009 at 2:31 PM, Syed Faraz Hasan < [email protected]> wrote: > > 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 > >
