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NSG

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NSG ns2 !"

#NSG2$%#NSG1$&'()*+,-.NSG2/0123

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2. 23NodeGHIWirelessNodeDWiredNode

3. 23WirelessNodeMNO

4. 23 LinkGHIDuplex-linkD Simplex-link

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n6ironment#%$ #6# S De6elopment 9it#D9$< Windo&

AOtuv #6#^- DS >v:

java

-version:ftuy #6#c? #6#

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1.tuv #6#

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3. NSG2v@AEFR

Hand mode

-@#nd modei=BC@A^

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i|v0$#in8%9aPGrid#nn$D%#ndomonO

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Agent mode

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AgentGc?i4)Of T! *ongestion &indo&

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uvw~AST^*}-5NSG~.=k[sv{

2. H/EF=EFBQREFH/fH/

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4. n2-n3h 17psO 2ms{

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5.;567

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) 8OF nodeQR

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5. 0ueue si?e1

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8OF node8?7

Step5s Agent mode#= Agent@ trlC4$)eK

OO{4DAgent t>pe(D!mO*}#!#*ket si?e$

15 >tesm- n n1cb Agent4D Agent t>pe

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AO Agent85|Oi4DAb5

"Agent-]X-#udpPnull2$%#udp1Pnull3$8b

5bF8f /{

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/ 8bAgents

Step)s Appli*#tion mode#= Appli*#tion@ trlC5$)

ecdWiO Appli*#tion t>peO +%mOzN

#St#rt time$ 1E#Stop time$ 4*}

15>tes ' @ * 17ps - n c b +%

Appli*#tionzN#St#rt time$ 2E#Stop

time$ 3m- n1cb+% Appli*#tionf {

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8bAppli*#tion

StepOST#= !#r#meters^@ trlC)$-

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07b-br

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#pen the NS trace (ileset trace(ile ,open out.tr w-ns trace0all trace(ile

#pen the N trace (ileset nam(ile ,open out.nam w-ns namtrace0all nam(ile

#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!# Nodes 3e(inition#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!#+reate 4 nodesset n& ,ns node-set n1 ,ns node-set n2 ,ns node-set n5 ,ns node-set n6 ,ns node-set n% ,ns node-

#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!# 7in8s 3e(inition#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!#+reatelin8s between nodesns duple90lin8 n& n2 2.&b 1&ms 3ropTailns ueue0limit n& n2 1&ns duple90lin8 n2 n1 2.&b 1&ms 3ropTailns ueue0limit n2 n1 1&ns duple90lin8 n6 n5 2.&b 1&ms 3ropTailns ueue0limit n6 n5 1&ns duple90lin8 n5 n% 2.&b 1&ms 3ropTailns ueue0limit n5 n% 1&ns duple90lin8 n2 n5 1.&b 2&ms 3ropTail

ns ueue0limit n2 n5 1&

#Gi"e node position (or N$ns duple90lin80op n& n2 orient right0downns duple90lin80op n2 n1 orient le(t0downns duple90lin80op n6 n5 orient le(t0downns duple90lin80op n5 n% orient right0downns duple90lin80op n2 n5 orient right

#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!# gents 3e(inition#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!#Setup a ;3 connection

set udp& ,new gent/;3-ns attach0agent n& udp&set null2 ,new gent/Null-ns attach0agent n6 null2ns connect udp& null2udp& set pac8etSi*e= 1%&&

#Setup a ;3 connectionset udp1 ,new gent/;3-ns attach0agent n1 udp1set null5 ,new gent/Null-ns attach0agent n% null5ns connect udp1 null5

udp1 set pac8etSi*e= 1%&&

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#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!# pplications 3e(inition#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!#Setup a +>? pplication o"er ;3 connectionset cbr& ,new pplication/Tra((ic/+>?-cbr& attach0agent udp&cbr& set pac8etSi*e= 1%&&cbr& set rate= 1.&bcbr& set random= nullns at 1.& @cbr& start@ns at 6.& @cbr& stop@

#Setup a +>? pplication o"er ;3 connectionset cbr1 ,new pplication/Tra((ic/+>?-cbr1 attach0agent udp1cbr1 set pac8etSi*e= 1%&&cbr1 set rate= 1.&bcbr1 set random= nullns at 2.& @cbr1 start@ns at 5.& @cbr1 stop@

#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!# Termination#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!#3e(ine a A(inishA procedureproc (inish BC B global ns trace(ile nam(ile ns (lush0trace close trace(ile close nam(ile e9ec nam out.nam D e9it &

Cns at "alstop$ @ns nam0end0wireless "alstop$@ns at "alstop$ @(inish@ns at "alstop$ @puts E@doneE@ ' ns halt@ns run

NSG?)NzNNA7)yf+

NA7zN^-NSGvSTONA7 ,ile4>O-1NSGw+

zNNA7[sv{ 12NA7zN^

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12

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