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OPNET Workshop
Introduction to OPNET Modeler
Dr Steven GordonSirindhorn International Institute of Technology
Thammasat University
June 2010
Supported by:• Telecommunications Research and Industrial Development Institute (TRIDI),
National Telecommunications Commission (NTC)• Prince of Songkla University (PSU)• Sirindhorn International Institute of Technology (SIIT), Thammasat University
Introduction to OPNET Modeler
Workshop Overview
OPNET Modeler is a software environment for modelling and analysing the perfor-mance of computer networks and protocols. This workshop aims to introduce you toOPNET Modeler, with focus on how it can be used for telecommunications research.The basic operations and features of OPNET Modeler will be explained, followed byseveral hands on tasks, where you will use OPNET Modeler to setup a simple simulation,create your own traffic and application profiles, and modify an existing protocol. Theseare key tasks when using OPNET Modeler for simulation of new/modified protocols andalgorithms in your research.
At the end of the workshop you should have the following knowledge:
1. Understand how OPNET Modeler is structured
2. Navigate the menus and operations of OPNET Modeler
3. Create models of networks using existing models
4. Configure, run and analyse results from simulations
5. Knowledge of existing device models and capabilities
6. Understand the implementation of Process Models
7. Create your own model of a protocol
This workshop should be of benefit to telecommunication researchers, especially grad-uate students and faculty interested in detailed analysis of computer and communicationnetworks (e.g. wireless LAN, ad hoc networks, IPv6, routing algorithms, voice/video overIP, WiMax, 3G/LTE).
The “Hands On” sessions will allow each participant to use OPNET Modeler to com-plete short tasks. You will use the computers provided, each running OPNET Modeler.
OPNET Modeler is a large and complex software package. This workshop will onlycover selected features which are important in getting started with OPNET Modelerfor research. Most of the source code presented in the workshop will be in C: basicknowledge of C programming is assumed. Knowledge of computer networking is alsoassumed (e.g. layering concepts especially related to the Internet, protocol mechanisms,packets, performance metrics).
The workshop will be led by Dr Steven Gordon, Assistant Professor at SirindhornInternational Institute of Technology (SIIT), Thammasat University. He has used OP-NET Modeler (as well as other simulation tools, e.g. NS2, Glomosim) for research overthe past 10 years, and recently introduced OPNET software in a course taught at SIIT.Questions and comments on OPNET are welcome.
Email [email protected]
Web http://ict.siit.tu.ac.th/~steven/
Phone +66-2-501-3505 ext 2014
1
OPNET
Workshop
Introduction
OPNET
Methodology
Intr
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Methodology
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Analysing
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LabTasks
Cre
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Workshop
Analysing
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Ed
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Workshop
Analysing
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Sp
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OPNET
Workshop
Analysing
Networks
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Sel
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ch:Switch
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apto
ps:
ClientHttp
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IS
wit
ch—
Wir
eles
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ter:
Utilization
2.
Fro
mD
ES
men
u,
Ch
oos
eIn
div
idu
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tati
stic
s:Ethernet
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OP
NE
TS
tati
stic
sN
od
e/lin
kst
atis
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cord
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rin
div
idu
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es/l
inks
Glo
bal
stat
isti
cs:
reco
rded
for
enti
ren
etw
ork
7
OPNET
Workshop
Analysing
Networks
LabTasks
Co
nfi
gu
rea
nd
Ru
nth
eS
imu
lati
on
s
Ta
sk6
1.
Fro
mD
ES
men
u,
Con
figu
re/R
un
Dis
cret
eE
ven
tS
imu
lati
on
2.
Set
du
rati
onto
10m
inu
tes
3.
Ru
n!
Wh
at
do
esO
PN
ET
do
?
IP
roce
sses
are
com
pile
d(i
fch
ange
dsi
nce
last
sim
ula
tion
)
ID
isp
lays
sim
ula
tion
prog
ress
,in
clu
din
gn
um
ber
ofev
ents
and
sim
ula
ted
tim
e
ID
ES
Log
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arn
ings
and
erro
rsw
illb
ere
cord
ed(o
pen
via
DE
Sm
enu
)
8
OPNET
Workshop
Analysing
Networks
LabTasks
Vie
wth
eR
esu
lts
Ta
sk7
1.
Fro
mD
ES
men
u,
Res
ult
s→V
iew
Res
ult
s...
1.1
HT
TP
stat
isti
cs:
Lap
top
1p
age
resp
onse
tim
e;S
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rlo
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ver
task
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tim
e1
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show
nA
sIs
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ith
mat
hem
atic
alop
erat
ors
app
lied
9
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TW
ork
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2
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ork
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des
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s
Ch
an
nel
s
Sta
tist
ics
Sim
ula
tio
ns
OP
NE
TE
dit
ors
IC
omm
only
use
ded
itor
s:
1.
Pro
ject
edit
or:
crea
tin
gto
pol
ogy
2.
No
de
edit
or:
mo
dif
yin
gd
evic
es3
.P
roce
ssed
itor
:m
od
ifyi
ng
prot
oco
ls
IO
ther
use
ful
edit
ors:
IP
acke
tfo
rmat
:sp
ecif
yst
ruct
ure
ofp
acke
ts,
fram
es,
mes
sage
sI
PD
F:
crea
teyo
ur
own
prob
abili
tyd
ensi
tyfu
nct
ion
IP
rob
e:d
efin
eyo
ur
own
stat
isti
csan
dco
llect
ion
mec
han
ism
sI
Sim
ula
tion
Seq
uen
ce:
con
figu
reb
atch
sim
ula
tion
sI
An
ten
na
Pat
tern
s,M
od
ula
tion
Cu
rve,
Dem
and
s,..
.
3
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NE
TW
ork
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itor
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Tra
ffic
No
des
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ink
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Ch
an
nel
s
Sta
tist
ics
Sim
ula
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Exa
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Pa
cket
Fo
rma
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Sce
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Pro
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Sce
nar
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IA
proj
ect
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ult
iple
,in
dep
end
ent
scen
ario
s
IU
sed
for
diff
eren
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pol
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an
etw
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ach
ieve
du
sin
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ets
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kin
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Lo
ok
Go
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Ma
ps
an
dB
ack
gro
un
ds
ID
isp
lay
wor
ldm
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ith
citi
es:
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isp
lay
city
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sor
oth
erm
ages
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no
tati
on
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IC
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ents
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t,re
ctan
gles
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rcle
s:Topology→Open
Annotation
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6
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tist
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Cre
ati
ng
aT
op
olo
gy
Diff
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tm
eth
od
s:
1.
Man
ual
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Cre
ate
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s,st
ar,
mes
h,
ran
dom
top
olog
ies:
Topology→Rapid
Configuration
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Dep
loy
WL
AN
/WiM
axn
od
esin
com
mon
top
olog
ies:
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Wireless
Network
4.
Imp
ort/
exp
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from
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oth
erso
ftw
are
and
file
form
ats
7
OP
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ach
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slow
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ased
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pp
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9
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ove
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s:co
nst
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ifor
m,
exp
onen
tial
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.
Exa
mp
le:
WL
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Sim
ple
10
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rs:
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IP,
AT
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Fib
reC
han
nel
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pec
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traffi
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ata
rate
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xplic
it:
ind
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pac
kets
sim
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ted
IB
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del
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11
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Ap
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Mo
del
s
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mm
on
Inte
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Ap
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on
s
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sin
g,E
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File
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in,
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Cu
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use
rb
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ng:
HT
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tin
tera
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pag
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size
s
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scen
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han
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sin
gd
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tera
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13
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des
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an
nel
s
Sta
tist
ics
Sim
ula
tio
ns
Lin
ks
IS
pec
ify
link
char
acte
rist
ics:
pac
ket
form
ats,
dat
ara
tes,
mo
del
sof
link
beh
avio
ur
(pip
elin
est
ages
)
IC
ansp
ecif
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ackg
rou
nd
utl
izat
ion
(bas
elin
elo
ad)
for
each
dir
ecti
on;
imp
acts
ond
elay
calc
ula
tion
for
ind
ivid
ual
pac
kets
that
trav
erse
the
link
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xam
ple
s:IP
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erd
ial-
up
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Red
and
blu
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wee
npr
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smit
ter:
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at;
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ara
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sth
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IS
tati
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and
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asso
ciat
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tran
scei
ver
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esto
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tran
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sy)
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acke
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ream
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like
ph
ysic
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Inte
rfac
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ontr
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form
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ata
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ctu
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rn
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ata
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mu
nic
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gle
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shar
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info
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bet
wee
npr
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16
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Da
taL
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Lay
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IM
AC
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ther
net
MA
Cpr
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col
IM
AC
Par
amet
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prom
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lues
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be
set
inth
eP
roje
cted
itor
IA
RP
Net
wo
rkL
ayer
IIP
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clu
des
IPv4
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NE
Tro
uti
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ult
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lsov
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17
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CP
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DP
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spor
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apat
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ovid
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plic
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gen
eric
inte
rfac
eto
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tran
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P,
UD
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X.2
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ram
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)
Ap
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Lay
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nd
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plic
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):H
TT
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FT
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Dat
abas
e,C
ust
om,
...
IM
anag
emen
tap
plic
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ns:
DH
CP
,R
IP
IC
PU
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stor
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19
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20
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21
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22
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23
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24
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25
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26
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ork
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27
OP
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28
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29
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30
OP
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are
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ng
prob
es
31
OP
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ork
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p
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32
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33
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34
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TW
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35
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Time
36
OPNET
Workshop
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Process
Models
Controller
Analysis
So
urc
eC
od
e
Exe
cuti
ves
stat
ean
dtr
ansi
tion
exec
uti
ves
Hea
der
Blo
ckin
clu
des
,d
efin
esan
dd
ecla
rati
ons
for
pro
cess
mo
del
Fu
nct
ion
Blo
ckfu
nct
ion
su
sed
bypr
oce
ssm
od
el
Dia
gn
ost
icB
lock
deb
ugg
ing
cod
e
Ter
min
ati
on
Blo
ckex
ecu
ted
wh
ensi
mu
lati
onfi
nis
hes
Ext
ern
al
Co
de
hea
der
s/fu
nct
ion
sst
ored
exte
rnal
lyfr
ompr
oce
ssm
od
el
10
OPNET
Workshop
Process
Models
Sen
sorNetwork
Process
Models
Controller
Analysis
Co
nte
nts
Exa
mp
le:
Sen
sor
Net
wo
rk
Pro
cess
Mo
del
ling
inO
PN
ET
Co
ntr
olle
rP
roce
ssM
od
el
Sim
ula
tio
na
nd
An
aly
sis
11
OPNET
Workshop
Process
Models
Sen
sorNetwork
Process
Models
Controller
Analysis
Co
ntr
olle
rP
roce
ssM
od
el
12
OPNET
Workshop
Process
Models
Sen
sorNetwork
Process
Models
Controller
Analysis
Co
ntr
olle
rP
roce
ssM
od
el
Fou
rst
ates
:
INIT
per
form
sin
itia
lizat
ion
oper
atio
ns
for
pro
cess
mo
del
Idle
pro
cess
resi
des
her
ew
hile
wai
tin
gfo
rin
terr
up
ts
Rec
eive
ente
red
wh
enth
ep
acke
tis
rece
ived
from
alo
wer
laye
r
Sen
den
tere
dw
hen
ap
acke
tn
eed
sto
be
sen
tto
the
low
erla
yer
Tra
nsi
tion
s:
PK
TR
EC
EIV
Est
ream
inte
rru
pt
occ
urs
du
eto
pac
ket
arri
vin
gon
inp
ut
stre
amfr
omipencap
PK
TS
EN
Dse
lfin
terr
up
to
ccu
rsd
ue
toti
meo
ut
13
OPNET
Workshop
Process
Models
Sen
sorNetwork
Process
Models
Controller
Analysis
Init
ialis
ing
the
Pro
cess
INIT
stat
e:
1.
Init
ialis
esst
ate
vari
able
s
2.
Reg
iste
rsit
self
wit
hIP
3.
Sch
edu
les
self
inte
rru
pt
too
ccu
raf
ter
ara
nd
omti
me
controllersvinit()
1.
Ob
tain
sID
ofit
self
(controller
pro
cess
)an
dp
aren
t(wirelesscontrolleradv
no
de)
2.
Rea
ds
use
r-co
nfi
gura
ble
pro
cess
attr
ibu
tes
3.
Reg
iste
rsst
atis
tics
4.
Cre
ate
ICI
toco
mm
un
icat
ew
ith
IP
5.
Est
ablis
hes
ara
nd
omd
istr
ibu
tion
toch
oos
ead
dre
ssof
sen
sor
14
OPNET
Workshop
Process
Models
Sen
sorNetwork
Process
Models
Controller
Analysis
Init
ialis
ing
the
Pro
cess
Ta
skA
dd
cod
eto
read
theInterarrival
Tim
eat
trib
ute
Use
r-co
nfi
gu
rab
leP
roce
ssA
ttri
bu
tes
Interfaces→Model
Attributes
:at
trib
ute
sth
atca
nb
ese
tin
the
no
de
mo
del
(or
prom
oted
toh
igh
erle
vel)
ProgrammersReferen
ce→
DiscreteEventSim
ulation→
InternalModel
Access
Models→
Gen
eralModels→
Model
Support
std/utilities/oms/omsdistsupport.ex.c
15
OPNET
Workshop
Process
Models
Sen
sorNetwork
Process
Models
Controller
Analysis
Init
ialis
ing
the
Pro
cess
controllerregisterselfwithip()
Iipencap
per
form
sm
ult
iple
xin
g:m
ult
iple
hig
her
laye
rpr
oto
cols
over
IP
IM
ust
regi
ster
our
hig
her
laye
rpr
oto
col
wit
hIP
Aft
erin
itia
lisat
ion
isco
mp
lete
,co
ntr
olle
ren
ters
Idle
stat
ean
dw
aits
for
nex
tev
ent
16
OPNET
Workshop
Process
Models
Sen
sorNetwork
Process
Models
Controller
Analysis
Eve
nts
fro
mId
leS
tate
Rec
eive
ap
acke
t:st
ream
inte
rru
pt
from
low
erla
yer
#define
PKT_RECEIVE
op_intrpt_type
()
==
OPC_INTRPT_STRM
Sen
da
pac
ket:
self
inte
rru
pt
(tim
eou
t)
#define
PKT_SEND
op_intrpt_type
()
==
OPC_INTRPT_SELF
Inte
rru
pts
inge
ner
al:
IT
ype:
stre
am(p
acke
t),
self
(tim
eou
t),
stat
(sta
tus)
,..
.
IC
od
e:u
ser-
prog
ram
med
,e.
g.in
dic
ate
wh
ich
tim
erex
pir
ed
IF
orst
ream
inte
rru
pts
,ca
nd
eter
min
ew
hic
hst
ream
,e.
g.fr
omh
igh
erla
yer
orlo
wer
laye
r
IC
hec
kth
ein
terr
up
tin
exit
exec
uti
ves
ofu
nfo
rced
stat
es
ProgrammersReferen
ce→
DiscreteEventSim
ulation→
InterruptPackage
17
OPNET
Workshop
Process
Models
Sen
sorNetwork
Process
Models
Controller
Analysis
Rec
eivi
ng
aP
ack
et
Pro
cess
the
pac
ket:
1.
Get
the
rece
ived
pac
ket
from
the
stre
am
2.
Get
the
ICI
that
acco
mp
anie
sth
ep
acke
t
3.
Up
dat
eth
est
atis
tics
4.
Des
troy
the
pac
ket
and
ICI
Ret
urn
toIdle
stat
e
18
OPNET
Workshop
Process
Models
Sen
sorNetwork
Process
Models
Controller
Analysis
Sen
din
ga
Pa
cket
Gen
erat
eth
ep
acke
t:
1.
Cre
ate
ran
dom
size
dp
acke
tw
ith
ran
dom
up
dat
efr
equ
ency
and
des
tin
atio
n
2.
Sen
dth
ep
acke
t(controllerpacketsendtoip()
3.
Up
dat
eth
est
atis
tics
4.
Sch
edu
lese
lfin
terr
up
tfo
rn
ext
req
ues
tfo
ru
pd
ate
freq
uen
cych
ange
controllerpacketsendtoip()
1.
ICI
con
tain
sad
dre
ssof
des
tin
atio
nse
nso
r
2.
Pac
ket
isse
nt
ProgrammersReferen
ce→
DiscreteEventSim
ulation→
Interface
Control
Inform
ationPackage
ProgrammersReferen
ce→
DiscreteEventSim
ulation→
Packet
Package
19
OPNET
Workshop
Process
Models
Sen
sorNetwork
Process
Models
Controller
Analysis
Sen
sor
Pro
cess
Mo
del
Sim
ilar
toco
ntr
olle
rpr
oce
ssm
od
el:
mu
stre
gula
rly
sen
dp
acke
ts,
also
sen
dim
med
iate
lyaf
ter
rece
ivin
gp
acke
t
Ta
skA
dd
cod
eto
retr
ieve
the
up
dat
ep
erio
dfr
omth
ere
ceiv
edp
acke
t
ProgrammersReferen
ce→
DiscreteEventSim
ulation→
EventPackage
20
OPNET
Workshop
Process
Models
Sen
sorNetwork
Process
Models
Controller
Analysis
Co
nte
nts
Exa
mp
le:
Sen
sor
Net
wo
rk
Pro
cess
Mo
del
ling
inO
PN
ET
Co
ntr
olle
rP
roce
ssM
od
el
Sim
ula
tio
na
nd
An
aly
sis
21
OPNET
Workshop
Process
Models
Sen
sorNetwork
Process
Models
Controller
Analysis
Sim
ula
tio
na
nd
An
aly
sis
Ta
sks
1.
Ru
nth
esi
mu
lati
on
2.
Sh
owth
eex
isti
ng
resu
ltte
mp
late
s:DES→Panel
Operations→Arrange
Panels→Show
All
3.
Loa
dth
ere
sult
sin
toth
ete
mp
late
s:DES→Panel
Operations→Panel
Templates→Load
with
Latest
Results
Res
ult
ssh
owth
ere
gula
ru
pd
ates
from
sen
sors
,an
dch
ange
inu
pd
ate
inte
rval
trig
gere
dby
con
trol
ler
22
OPNET
Workshop
Process
Models
Sen
sorNetwork
Process
Models
Controller
Analysis
Sta
tist
ics,
Bu
cket
sa
nd
Su
m/
Tim
e
IB
uck
ets
are
use
dto
red
uce
the
stat
isti
cd
ata
stor
edd
uri
ng
sim
ula
tion
,e.
g.st
ore
1va
lue
for
all
pac
kets
sen
tin
bu
cket
du
rati
onof
10m
s
IS
um
/Tim
eis
ofte
nu
sed
for
rate
stat
isti
cs,
e.g.
bit
sp
erse
con
d
IL
ast
valu
ein
ab
uck
etis
prop
orti
onal
lysp
litac
ross
curr
ent
bu
cket
and
nex
tb
uck
et
IT
oav
oid
this
wit
hsu
m/t
ime
stat
isti
cs,
wri
teva
lue
0af
ter
wri
tin
gre
alst
atis
tic
ID
efau
ltb
uck
etsi
ze:
sim
du
rati
on/
valu
esp
erst
atis
tic 23
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