Hello All, I wrote a simple wired-wless scenario
Wired_node----Base_Station----Mobile_Node but I keep receiving the message: "warning: Route to base_stn not known: dropping pkt" I searched for this and I could see this means the Base-Station cannot reach the mobile node. I treid many alternatives of position... But I could node solve the problem! Here is my code. I apreciate very much your help. Bruno ____________________________________________________________________________ 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) "" ;# connection pattern file set opt(sc) "" ;# node movement file. set opt(x) 600 ;# x coordinate of topology set opt(y) 600 ;# y coordinate of topology set opt(seed) 0.0 ;# seed for random number gen. set opt(stop) 10 ;# time to stop simulation #set opt(ftp1-start) 0.1 set num_wired_nodes 1 set num_bs_nodes 1 # ============================================================================ # 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 #remove-all-packet-headers #add-packet-header IP TCP set ns_ [new Simulator] # set up for hierarchical routing $ns_ node-config -addressType hierarchical AddrParams set domain_num_ 2 ;# number of domains lappend cluster_num 1 1 ;# number of clusters in each domain AddrParams set cluster_num_ $cluster_num lappend eilastlevel 1 2 ;# number of nodes in each cluster AddrParams set nodes_num_ $eilastlevel ;# of each domain set tracefd [open wireless2-out.tr w] set namtrace [open wireless2-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 create-god [expr $opt(nn) + $num_bs_nodes] #create wired nodes set temp {0.0.0} set wired_node [$ns_ node [lindex $temp 0]] # configure for base-station node $ns_ node-config -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 $topo \ -wiredRouting ON \ -agentTrace ON \ -routerTrace OFF \ -macTrace OFF set temp {1.0.0 1.0.1} # create base-station node set BS [$ns_ node [lindex $temp 0]] ;#DelayBox [lindex $temp 0]] $BS random-motion 0 ;# disable random motion # provide some co-ord (fixed) to base station node $BS set X_ 300.0 $BS set Y_ 200.0 $BS set Z_ 0.0 # create mobilenodes in the same domain as BS(0) # note the position and movement of mobilenodes is as defined # in $opt(sc) # mobilenodes configuration $ns_ node-config -wiredRouting OFF set mob_node [ $ns_ node [lindex $temp 1]] $mob_node base-station [AddrParams addr2id [$BS node-addr]] $mob_node random-motion 0 $mob_node set X_ 300.0 $mob_node set Y_ 198.0 $mob_node set Z_ 0.0 #create links between wired and BS nodes $ns_ duplex-link $wired_node $BS 5Mb 2ms DropTail $ns_ duplex-link-op $wired_node $BS orient down # setup TCP connections set tcp1 [new Agent/TCP] #$tcp1 set class_ 2 set sink1 [new Agent/TCPSink] #$tcp1 fid_ 1 #$sink1 fid_ 1 $ns_ attach-agent $mob_node $tcp1 $ns_ attach-agent $wired_node $sink1 $ns_ connect $sink1 $tcp1 set exp [new Application/Traffic/Exponential] $exp set packet_size_ 1000 $exp set burst_time_ 0.01 $exp set dle_time_ 0.01 $exp set rate 100kbps $exp attach-agent $tcp1 $ns_ at 0.1 "$exp start" #set ftp1 [new Application/FTP] #$ftp1 attach-agent $tcp1 #$ns_ at $opt(ftp1-start) "$ftp1 start" # create random variables #global defaultRNG #$defaultRNG seed 0 #set delay [new RandomVariable/Constant]; # delay ms #$delay set val_ 20 #set bw [new RandomVariable/Constant]; # bw Mbps #$bw set val_ 100 #set bw [new RandomVariable/Uniform]; # bw Mbps #$bw set min_ 1 #$bw set max_ 20 #set loss_rate [new RandomVariable/Uniform]; # loss 0-1% loss #$loss_rate set min_ 0 #$loss_rate set max_ 0.01 #$BS(0) add-rule [$n_src id] [$n_sink id] $recvr_delay $loss_rate $recvr_bw # 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 $mob_node 5 } # Tell all nodes when the simulation ends for {set i } {$i < $opt(nn) } {incr i} { $ns_ at $opt(stop).0 "$mob_node reset"; } $ns_ at $opt(stop).0 "$BS reset"; $ns_ at $opt(stop).0002 "puts \"NS EXITING...\" ; $ns_ halt" $ns_ at $opt(stop).0001 "stop" proc stop {} { global ns_ tracefd namtrace $ns_ flush-trace close $tracefd close $namtrace exec nam wireless2-out.nam & exit 0 } # informative headers for CMUTracefile 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