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By

Mohammed Amer Al-Batati

OMNet+

+Step by Step

Part - 5

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et"# modi*y our plan$ ,hen a node de!ide# totran#mit a me##a(e& it ha)e to #ele!t arandom de#tination$ %here*ore& we need tomodi*y Node$!! 'le$

Addin( More Node# - !ont$

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oto to .mynetwor/- add more node# -!onne!t them to ea!h other then run theeperiment$ A# *ollow#

Addin( More Node# - !ont$

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Me##a(e#3ependin( on the model domain& me##a(e

ob4e!t# repre#ent e)ent#& pa!et#& !ommand#& 4ob#& !u#tomer# or other ind# o* entitie#$

 %here are !Me##a(e and !Pa!et la##e#$

 %he !Pa!et !la## etend# !Me##a(e$

!Pa!et i# u#ed *or networ pa!et# 6*rame#&data(ram#& tran#port pa!et#& et!$7 in a

!ommuni!ation networ& and !Me##a(e i# u#ed*or e)erythin( el#e$8or eample& en!ap#ulation and de!ap#ulation

operation# are only u#ed with !Pa!et$

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Me##a(e# 9 Ba#i! :#a(e!Me##a(e ;m#( < new cMessage();

!Me##a(e ;m#( < new cMessage("timer");

!Me##a(e ;m#( < new cMessage("timer",kind);

m#(-#et=ind6 ind 7>

m#(-#etBiten(th6 len(th 7>

m#(-#et%ime#tamp6 #imtime 7>

int K = msg->getKind();int L = msg->getBitLength();

#imtime?t % < m#(-(et%ime#tamp67>

@et!

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Me##a(e# 9 3upli!atin( Me##a(e#

!Me##a(e ;!opy < m#(-dup67>

… one slide…

…one line…

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Me##a(e# 9 n!ap#ulationample

IP

MA

MA IP

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In#pe!tin( !Me##a(e ob4e!t# 6pre)iou# !ode7$

Me##a(e# 9 n!ap#ulation 9!ont$

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Modi*y Node$!! !ode to in!lude the en!ap#ulationeample$

Sa)e& build and run$

Me##a(e# 9 n!ap#ulation 9!ont$

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In#pe!tin( !Pa!et ob4e!t# 6new !ode7$

Me##a(e# 9 n!ap#ulation 9!ont$

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A##ume that you want to add your ownheader between IP and MA$

3e'ne our Own Me##a(e

IPMA

MyCeader

Name ID Year

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A##ume that you want to add your ownheader between IP and MA$

3e'ne our Own Me##a(e

IPMA

MyCeader

Name ID Year

  !  L  "  

#   

$  N  %   !  D  

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8rom Pro4e!t plorer ri(ht-!li! on mypro4e!t- New - Me##a(e 3e'nition 6$m#(7 - nameit 6myCeader7 - Net - Sele!t New Me##a(e8ile - Net - 8ini#h$

Add our 'eld#

Sa)e and Build$

3e'ne our Own Me##a(e -!ont$

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OMNet++ (enerate# $!! and $h6myCeader?m$!! and myCeader?m$h7$

 our need# are (enerated$

Cow to u#e it$

3e'ne our Own Me##a(e -!ont$

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 %o u#e your new me##a(e1$ In!lude the needed header$

2$ :#e .myCeader/ a# .!Pa!et/

D$  %hat i# itE

In#ert it between IP and MA

3e'ne our Own Me##a(e -!ont$

AtNode$!!