*hi all, friends actually i m new one in using ns so facing many problems while solving error in running tcl file so kindly help me. i m running following tcl file :*
# wireless3.tcl # simulation of a wired-cum-wireless topology running with mobileIP # ====================================================================== # Define options # ====================================================================== set opt(chan) Channel/WirelessChannel ;# channel type set opt(prop) Propagation/TwoRayGround ;# radio-propagation model set opt(netif) Phy/WirelessPhy ;# network interface type set opt(mac) Mac/802_11 ;# MAC type set opt(ifq) Queue/DropTail/PriQueue ;# interface queue type set opt(ll) LL ;# link layer type set opt(ant) Antenna/OmniAntenna ;# antenna model set opt(ifqlen) 50 ;# max packet in ifq set opt(nn) 1 ;# number of mobilenodes set opt(adhocRouting) DSDV ;# routing protocol set opt(cp) "" ;# cp file not used set opt(sc) "" ;# node movement file. set opt(x) 670 ;# x coordinate of topology set opt(y) 670 ;# y coordinate of topology set opt(seed) 0.0 ;# random seed set opt(stop) 250 ;# time to stop simulation set opt(ftp1-start) 100.0 set num_wired_nodes 2 #set num_bs_nodes 2 ; this is not really used here. # ====================================================================== # check for boundary parameters and random seed if { $opt(x) == 0 || $opt(y) == 0 } { puts "No X-Y boundary values given for wireless topology\n" } if {$opt(seed) > 0} { puts "Seeding Random number generator with $opt(seed)\n" ns-random $opt(seed) } # create simulator instance set ns_ [new Simulator] # set up for hierarchical routing $ns_ node-config -addressType hierarchical AddrParams set domain_num_ 3 ;# number of domains lappend cluster_num 2 1 1 ;# number of clusters in each domain AddrParams set cluster_num_ $cluster_num lappend eilastlevel 1 1 2 1 ;# number of nodes in each cluster AddrParams set nodes_num_ $eilastlevel ;# of each domain set tracefd [open wireless3-out.tr w] set namtrace [open wireless3-out.nam w] $ns_ trace-all $tracefd $ns_ namtrace-all-wireless $namtrace $opt(x) $opt(y) # Create topography object set topo [new Topography] # define topology $topo load_flatgrid $opt(x) $opt(y) # create God # 2 for HA and FA create-god [expr $opt(nn) + 2] #create wired nodes set temp {0.0.0 0.1.0} ;# hierarchical addresses for {set i 0} {$i < $num_wired_nodes} {incr i} { set W($i) [$ns_ node [lindex $temp $i]] } # Configure for ForeignAgent and HomeAgent nodes $ns_ node-config -mobileIP ON \ -adhocRouting $opt(adhocRouting) \ -llType $opt(ll) \ -macType $opt(mac) \ -ifqType $opt(ifq) \ -ifqLen $opt(ifqlen) \ -antType $opt(ant) \ -propType $opt(prop) \ -phyType $opt(netif) \ -channelType $opt(chan) \ -topoInstance $topo \ -wiredRouting ON \ -agentTrace ON \ -routerTrace OFF \ -macTrace OFF # Create HA and FA set HA [$ns_ node 1.0.0] set FA [$ns_ node 2.0.0] $HA random-motion 0 $FA random-motion 0 # Position (fixed) for base-station nodes (HA & FA). $HA set X_ 1.000000000000 $HA set Y_ 2.000000000000 $HA set Z_ 0.000000000000 $FA set X_ 650.000000000000 $FA set Y_ 600.000000000000 $FA set Z_ 0.000000000000 # create a mobilenode that would be moving between HA and FA. # note address of MH indicates its in the same domain as HA. $ns_ node-config -wiredRouting OFF set MH [$ns_ node 1.0.1] set node_(0) $MH set HAaddress [AddrParams addr2id [$HA node-addr]] [$MH set regagent_] set home_agent_ $HAaddress # movement of the MH $MH set Z_ 0.000000000000 $MH set Y_ 2.000000000000 $MH set X_ 2.000000000000 # MH starts to move towards FA $ns_ at 100.000000000000 "$MH setdest 640.000000000000 610.000000000000 20.000000000000" # goes back to HA $ns_ at 200.000000000000 "$MH setdest 2.000000000000 2.000000000000 20.000000000000" # create links between wired and BaseStation nodes $ns_ duplex-link $W(0) $W(1) 5Mb 2ms DropTail $ns_ duplex-link $W(1) $HA 5Mb 2ms DropTail $ns_ duplex-link $W(1) $FA 5Mb 2ms DropTail $ns_ duplex-link-op $W(0) $W(1) orient down $ns_ duplex-link-op $W(1) $HA orient left-down $ns_ duplex-link-op $W(1) $FA orient right-down # setup TCP connections between a wired node and the MobileHost set tcp1 [new Agent/TCP] $tcp1 set class_ 2 set sink1 [new Agent/TCPSink] $ns_ attach-agent $W(0) $tcp1 $ns_ attach-agent $MH $sink1 $ns_ connect $tcp1 $sink1 set ftp1 [new Application/FTP] $ftp1 attach-agent $tcp1 $ns_ at $opt(ftp1-start) "$ftp1 start" # source connection-pattern and node-movement scripts if { $opt(cp) == "" } { puts "*** NOTE: no connection pattern specified." set opt(cp) "none" } else { puts "Loading connection pattern..." source $opt(cp) } if { $opt(sc) == "" } { puts "*** NOTE: no scenario file specified." set opt(sc) "none" } else { puts "Loading scenario file..." source $opt(sc) puts "Load complete..." } # Define initial node position in nam for {set i 0} {$i < $opt(nn)} {incr i} { # 20 defines the node size in nam, must adjust it according to your # scenario # The function must be called after mobility model is defined $ns_ initial_node_pos $node_($i) 20 } # Tell all nodes when the siulation ends for {set i 0} {$i < $opt(nn) } {incr i} { $ns_ at $opt(stop).0 "$node_($i) reset"; } $ns_ at $opt(stop).0 "$HA reset"; $ns_ at $opt(stop).0 "$FA reset"; $ns_ at $opt(stop).0002 "puts \"NS EXITING...\" ; $ns_ halt" $ns_ at $opt(stop).0001 "stop" proc stop {} { global ns_ tracefd namtrace close $tracefd close $namtrace } # some useful headers for tracefile puts $tracefd "M 0.0 nn $opt(nn) x $opt(x) y $opt(y) rp \ $opt(adhocRouting)" puts $tracefd "M 0.0 sc $opt(sc) cp $opt(cp) seed $opt(seed)" puts $tracefd "M 0.0 prop $opt(prop) ant $opt(ant)" puts "Starting Simulation..." $ns_ run *i got following error:* $ns wireless3.tcl num_node is set 3 warning: Please use-channel as shown in tcl/ex/wireless-mitf.tcl INITIALIZE THE LIST xListHead *** NOTE: no connection pattern specified. *** NOTE: no scenario file specified. Starting Simulation... channel.cc:sendUp - Calc highestAntennaZ_ and distCST_ highestAntennaZ_ = 1.5, distCST_ = 550.o SORTING LISTS ...DONE! warning: Route to base_stn not know: dropping pkt warning: Route to base_stn not know: dropping pkt warning: Route to base_stn not know: dropping pkt warning: Route to base_stn not know: dropping pkt NS EXITING... *how to resolve this error*. thanxs