Hi,would anyone tell me the solution to this error: Skipping duplicate node 0 definition.
The problem may also occurred http://mailman.isi.edu/pipermail/ns-users/2006-June/055980.html but I don't find the answer. My tcl script: ############################################################################# 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) 8 ;# 50 common node and 1 sink node set val(rp) aodv ;# routing protocol set val(x) 500 ;# X dimension of the topography set val(y) 500 ;# Y dimension of the topography set ns [new Simulator] set tracefd [open simulation_scence_m.tr w] $ns trace-all $tracefd set namtracefd [open simulation_sence_m.nam w] $ns namtrace-all-wireless $namtracefd $val(x) $val(y) $ns use-newtrace proc finish {} { global ns tracefd namtracefd $ns flush-trace close $tracefd close $namtracefd exec nam simulation_sence_m.nam & exit 0 } set topo [new Topography] $topo load_flatgrid $val(x) $val(y) create-god $val(nn) set chan_1_ [new $val(chan)] #$ns node-config -addressType def\ $ns_ node-config -sensorNode ON \ -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\ -energyModel EnergyModel\ -idlePower 0.0\ -rxPower 0.25\ -txPower 0.25\ -sensePower 0.00000175\ -initialEnergy 5\ -agentTrace ON\ -routerTrace ON\ -macTrace OFF\ -movementTrace ON\ -channel $chan_1_ # define the position of the sink node set node_(0) [$ns node] $node_(0) set X_ 500.0 $node_(0) set Y_ 0.0 $node_(0) set Z_ 0.0 $node_(0) label "sinknode" $node_(0) shape square $node_(0) color red $ns initial_node_pos $node_(0) 35 ;#add for {set i 1} {$i < $val(nn) } {incr i} { set node_($i) [$ns node] # $node_($i) random-motion 0 # $ns initial_node_pos $node_($i) 20 } #$ns initial_node_pos 35 #difine the position of the common nodes $node_(1) set X_ 231.47128696156261 $node_(1) set Y_ 411.97707942313377 $node_(1) set Z_ 0.0 $node_(2) set X_ 250.12041546875631 $node_(2) set Y_ 220.45653137399654 $node_(2) set Z_ 0.0 $node_(3) set X_ 60.80164856314736 $node_(3) set Y_ 497.76306003227972 $node_(3) set Z_ 0.0 $node_(4) set X_ 428.33099161662676 $node_(4) set Y_ 428.64265708655239 $node_(4) set Z_ 0.0 $node_(5) set X_ 201.64284305723518 $node_(5) set Y_ 473.63754360640309 $node_(5) set Z_ 0.0 $node_(6) set X_ 227.25328743795549 $node_(6) set Y_ 251.86512654268424 $node_(6) set Z_ 0.0 $node_(7) set X_ 14.766638872570654 $node_(7) set Y_ 334.004308485428 $node_(7) set Z_ 0.0 $ns at 500.0 "finish" $ns run ############################################################################# -------------- meshide 2007-01-30
