[ns] DSDV simultation doesnt work!!!!!
Ben Ghenaya Fatma
fatma.bg at gmail.com
Sun Apr 24 04:22:39 PDT 2005
Hello ns users,
I m working in performance evaluating of ad hoc routing protocols
(aodv, dsdv, dsr and tora) using ns2.
My network is composed of 6 nodes, I had no problem with aodv and dsr.
But the others protocols doesn t work.
For example, with dsdv script, when I define a flow between two nodes
that are in the same propagation rayon there is a communication, but
when one of them move, there is no communication via another
intermediate node!! and an error of segmentation is generated when i
compile the script.
I send u my script dsdvtcl, pleaaaase help me.
Thank u very much.
fatma
# ======================================================================
# Define options
# ======================================================================
set val(chan) Channel/WirelessChannel ;# channel type
set val(prop) Propagation/TwoRayGround ;# radio-propagation model
set val(ant) Antenna/OmniAntenna ;# Antenna type
set val(ll) LL ;# Link layer type
set val(ifq) Queue/DropTail/PriQueue ;# Interface queue type
set val(ifqlen) 50 ;# max packet in ifq
set val(netif) Phy/WirelessPhy ;# network interface type
set val(mac) Mac/802_11 ;# MAC type
set val(nn) 6 ;# number of mobilenodes
set val(rp) DSR ;# routing protocol
set val(x) 800
set val(y) 800
set ns [new Simulator]
#ns-random 0
set f [open 1_out.tr w]
$ns trace-all $f
set namtrace [open 1_out.nam w]
$ns namtrace-all-wireless $namtrace $val(x) $val(y)
set f0 [open pkt_received_en5_dsr.tr w]
set f1 [open pkt_lost_en5_dsr.tr w]
set f2 [open pkt_received_en2_dsr.tr w]
set f3 [open pkt_received_en3_dsr.tr w]
set topo [new Topography]
$topo load_flatgrid 800 800
create-god $val(nn)
set chan_1 [new $val(chan)]
set chan_2 [new $val(chan)]
set chan_3 [new $val(chan)]
set chan_4 [new $val(chan)]
set chan_5 [new $val(chan)]
set chan_6 [new $val(chan)]
# CONFIGURE AND CREATE NODES
$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) \
#-channelType $val(chan) \
-topoInstance $topo \
-agentTrace OFF \
-routerTrace ON \
-macTrace ON \
-movementTrace OFF \
-channel $chan_1 \
-channel $chan_2 \
-channel $chan_3 \
-channel $chan_4 \
-channel $chan_5 \
-channel $chan_6
proc finish {} {
global ns f f0 f1 f2 f3 namtrace
$ns flush-trace
close $namtrace
close $f0
close $f1
close $f2
close $f3
exec xgraph pkt_received_en5_dsr.tr pkt_lost_en5_dsr.tr
exec xgraph pkt_received_en2_dsr.tr pkt_received_en3_dsr.tr
exec nam -r 5m 1_out.nam &
exit 0
}
proc record {} {
global sink0 sink1 sink2 sink3 sink4 sink5 f0 f1 f2 f3
#Get An Instance Of The Simulator
set ns [Simulator instance]
#Set The Time After Which The Procedure Should Be Called Again
set time 0.05
#How Many Bytes Have Been Received By The Traffic Sinks?
set bw0 [$sink5 set npkts_]
set bw1 [$sink5 set nlost_]
set bw2 [$sink2 set npkts_]
set bw3 [$sink3 set npkts_]
#Get The Current Time
set now [$ns now]
#Save Data To The Files
puts $f0 "$now [expr $bw0]"
puts $f1 "$now [expr $bw1]"
puts $f2 "$now [expr $bw2]"
puts $f3 "$now [expr $bw3]"
#Re-Schedule The Procedure
$ns at [expr $now+$time] "record"
}
# define color index
$ns color 0 blue
$ns color 1 red
$ns color 2 chocolate
$ns color 3 red
$ns color 4 brown
$ns color 5 tan
$ns color 6 gold
$ns color 7 black
set n(0) [$ns node]
#$ns at 0.0 "$n(0) color red"
$n(0) color "0"
$n(0) shape "circle"
set n(1) [$ns node]
$n(1) color "blue"
$n(1) shape "circle"
set n(2) [$ns node]
$n(2) color "tan"
$n(2) shape "circle"
set n(3) [$ns node]
$n(3) color "red"
$n(3) shape "circle"
set n(4) [$ns node]
$n(4) color "tan"
$n(4) shape "circle"
set n(5) [$ns node]
$n(5) color "red"
$n(5) shape "circle"
for {set i 0} {$i < $val(nn)} {incr i} {
$ns initial_node_pos $n($i) 30+i*100
}
$n(0) set X_ 0.0
$n(0) set Y_ 0.0
$n(0) set Z_ 0.0
$n(1) set X_ 0.0
$n(1) set Y_ 0.0
$n(1) set Z_ 0.0
$n(2) set X_ 0.0
$n(2) set Y_ 0.0
$n(2) set Z_ 0.0
$n(3) set X_ 0.0
$n(3) set Y_ 0.0
$n(3) set Z_ 0.0
$n(4) set X_ 0.0
$n(4) set Y_ 0.0
$n(4) set Z_ 0.0
$n(5) set X_ 0.0
$n(5) set Y_ 0.0
$n(5) set Z_ 0.0
$ns at 0.0 "$n(0) setdest 100.0 100.0 3000.0"
$ns at 0.0 "$n(1) setdest 200.0 200.0 3000.0"
$ns at 0.0 "$n(2) setdest 300.0 200.0 3000.0"
$ns at 0.0 "$n(3) setdest 400.0 300.0 3000.0"
$ns at 0.0 "$n(4) setdest 500.0 300.0 3000.0"
$ns at 0.0 "$n(5) setdest 600.0 400.0 3000.0"
$ns at 2.0 "$n(5) setdest 100.0 400.0 500.0"
$ns at 1.5 "$n(3) setdest 450.0 150.0 500.0"
#$ns at 2.0 "$n(3) setdest 600.0 400.0 500.0"
# CONFIGURE AND SET UP A FLOW
set sink0 [new Agent/LossMonitor]
set sink1 [new Agent/LossMonitor]
set sink2 [new Agent/LossMonitor]
set sink3 [new Agent/LossMonitor]
set sink4 [new Agent/LossMonitor]
set sink5 [new Agent/LossMonitor]
$ns attach-agent $n(0) $sink0
$ns attach-agent $n(1) $sink1
$ns attach-agent $n(2) $sink2
$ns attach-agent $n(3) $sink3
$ns attach-agent $n(4) $sink4
$ns attach-agent $n(5) $sink5
#$ns attach-agent $sink2 $sink3
set tcp0 [new Agent/TCP]
$ns attach-agent $n(0) $tcp0
set tcp1 [new Agent/TCP]
$ns attach-agent $n(1) $tcp1
set tcp2 [new Agent/TCP]
$ns attach-agent $n(2) $tcp2
set tcp3 [new Agent/TCP]
$ns attach-agent $n(3) $tcp3
set tcp4 [new Agent/TCP]
$ns attach-agent $n(4) $tcp4
set tcp5 [new Agent/TCP]
$ns attach-agent $n(5) $tcp5
proc attach-CBR-traffic { node sink size interval } {
#Get an instance of the simulator
set ns [Simulator instance]
#Create a CBR agent and attach it to the node
set cbr [new Agent/CBR]
$ns attach-agent $node $cbr
$cbr set packetSize_ $size
$cbr set interval_ $interval
#Attach CBR source to sink;
$ns connect $cbr $sink
return $cbr
}
#set cbr0 [attach-CBR-traffic $n(5) $sink4 1000 .015]
#set cbr1 [attach-CBR-traffic $n(1) $sink2 1000 .015]
set cbr2 [attach-CBR-traffic $n(2) $sink3 1000 .015]
#set cbr3 [attach-CBR-traffic $n(3) $sink0 1000 .015]
#set cbr4 [attach-CBR-traffic $n(4) $sink3 1000 .015]
#set cbr5 [attach-CBR-traffic $n(5) $sink0 1000 .015]
$ns at 0.0 "record"
#$ns at 0.5 "$cbr0 start"
#$ns at 0.5 "$cbr1 start"
$ns at 2.0 "$cbr2 start"
#$ns at 2.0 "$cbr2 stop"
#$ns at 1.0 "$cbr3 start"
#$ns at 4.0 "$cbr3 stop"
$ns at 10.0 "finish"
puts "Start of simulation.."
$ns run
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