B0

B9

B18

B27

B1

B10

B19

B28

B2

B11

B20

B29

B3

B12

B21

B30

B4

B13

B22

B31

B5

B14

B23

B6

B15

B24

B7

B16

B25

B8

B17

B26

Pe baza informatiilor obtinute tabelul vom putea determina conectivitatea intre noduri ; aceasta va arata astfel :

Ø      Bitul 1 reprezinta existenta unei legaturi intre noduri

Ø      Bitul 0 reprezinta lipsa unei legaturi intre noduri .

Diagrama de topologie

4. Atribuirea adreselor la interfetele nodurilor

Mai jos vom atribui adrese IP la toate interfetele nodurilor 1-8 folosint mai multe adrese din clasele 192.168.x.x . Am hotarat ca voi atribui adrese din clasa 192.168.0.x .

Interfata NOD 1  : 192.168.0.1

Interfata NOD 2  : 192.168.0.2

Interfata NOD 3  : 192.168.0.3

Interfata NOD 4  : 192.168.0.4

Interfata NOD 5  : 192.168.0.5

Interfata NOD 6  : 192.168.0.6

Interfata NOD 7  : 192.168.0.7

Interfata NOD 8  : 192.168.0.8

Atribuirea vitezelor si intarzierilor celor 14 linkuri

Construirea simularii

set ns [new Simulator]

set nf [open out1.nam w]

$ns namtrace-all $nf

proc finish

set n1 [$ns node]

set n2 [$ns node]

set n3 [$ns node]

set n4 [$ns node]

set n5 [$ns node]

set n6 [$ns node]

set n7 [$ns node]

set n8 [$ns node]

$ns duplex-link $n1 $n2 9.6kb 1ms DropTail

$ns duplex-link $n1 $n3 19.2kb 1020ms DropTail

$ns duplex-link $n1 $n6 100Mb 10ms DropTail

$ns duplex-link $n2 $n4 200kb 180ms DropTail

$ns duplex-link $n2 $n6 10Mb 600ms DropTail

$ns duplex-link $n2 $n7 144Kb 3ms DropTail

$ns duplex-link $n2 $n8 33.6Kb 220ms DropTail

$ns duplex-link $n3 $n4 64kb 40ms DropTail

$ns duplex-link $n3 $n5 9.6kb 1ms DropTail

$ns duplex-link $n3 $n8 100Mb 10ms DropTail

$ns duplex-link $n4 $n5 10Mb 600ms DropTail

$ns duplex-link $n4 $n8 33.6Kb 220ms DropTail

$ns duplex-link $n5 $n8 19.2Kb 1020ms DropTail

$ns duplex-link $n7 $n8 100Mb 10ms DropTail

#Create a UDP agent and attach it to nod n0

set udp6 [new Agent/UDP]

$ns attach-agent $n6 $udp6

#Create a CBR traffic source and attach it to udp0

set cbr6 [new Application/Traffic/CBR]

$cbr6 set packetSize_ 1500b

$cbr6 set interval_ 2ms

$cbr6 attach-agent $udp6

#Create a UDP agent and attach it to nod n0

set udp4 [new Agent/UDP]

$ns attach-agent $n4 $udp4

#Create a CBR traffic source and attach it to udp0

set cbr4 [new Application/Traffic/CBR]

$cbr4 set packetSize_ 100b

$cbr4 set interval_ 50ms

$cbr4 attach-agent $udp4

set null7 [new Agent/Null]

$ns attach-agent $n7 $null7

$ns connect $udp6 $null7

$ns connect $udp4 $null7

$ns at 0.1 '$cbr6 start'

$ns at 3.0 '$cbr6 stop'

$ns at 0.3 '$cbr4 start'

$ns at 4.0 '$cbr4 stop'

$udp6 set class_ 1

$udp4 set class_ 2

$ns color 1 Blue

$ns color 2 Red

$ns at 5.0 'finish'

$ns run

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