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Installing ns-3.37 and ns-3.35 in Ubuntu | Ubuntu 22.04 | NS3

Multiple Versions of ns3 in Ubuntu 22.04 In this post, we are going to install two versions of ns3 namely ns-3.35 and ns-3.37  My OS is : Ubuntu 22.04 LTS (Long Term Support) ns-3.35 uses waf and (./waf --run scratch/first)  ns-3.37 uses cmake  (./ns3 run scratch/first.cc) So we will install both the packages  Go through the video for complete instructions To start with  $ sudo apt update  $ sudo apt install build-essential autoconf automake libxmu-dev g++ python3 python3-dev pkg-config sqlite3 cmake python3-setuptools git qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools gir1.2-goocanvas-2.0 python3-gi python3-gi-cairo python3-pygraphviz gir1.2-gtk-3.0 ipython3 openmpi-bin openmpi-common openmpi-doc libopenmpi-dev autoconf cvs bzr unrar gsl-bin libgsl-dev libgslcblas0 wireshark tcpdump sqlite sqlite3 libsqlite3-dev  libxml2 libxml2-dev libc6-dev libc6-dev-i386 libclang-dev llvm-dev automake python3-pip libxml2 libxml2-dev libboost-all-dev  I have downloaded both the versions of ns3 fr

Adding a New Agent and Application in Network Simulator 2 (NS2)

 This post is reproduced from this website http://nile.wpi.edu/NS/new_app_agent.html.  But the above code is compiled for older ns2 version. But nsnam.com showcases the code for ns-2.35 version. You can read the theory about the agent from this weblink.
 
A Simple theory about Application and Agent
In Ns2, Nodes are individual entities where in...

Nodes -> Agent -> Application
Nodes is attached with an Agent and the Agent carries the Application. You can see the following image where Node is attached with the Agent and the Agent carries the FTP or CBR Application

Here is an Agent and Application is implemented
Agent - UDPmm
Application - mmApp


ns2
node -> Agent -> Application
To compile it 
Method 1: Easy method


Please download the code here
  • Copy the mm-app.cc/.h and udp-mm.cc/.h in the -ns-2.35/multimedia directory
  • there is another folder called ns-modified-files/folder, copy the files which are there in to the corresponding location as specified below (Replace the existing files, Also take backup of your old files)
Following Files are modified
-ns-2.35/common/packet.h
 -ns-2.35/common/agent.h
-ns-2.35/tcl/lib/ns-packet.tcl
-ns-2.35/tcl/lib/ns-default.tcl
-ns-2.35/apps/app.h
-ns-2.35/Makefile.in


Then from the ns-2.35/folder 
$] ./configure && make
Test the testmm.tcl file and see the output, you can create any tcl file with udpmm as an agent and mmapp as application layer. 

Method 2: For advanced users...

  1. Copy "mm-app.h", "mm-app.cc", "udp-mm.h" and "udp-mm.cc" to the "~ns-2.35/multimedia" directory.
  1. Add the entry to Makefile.in as shown below
~ns-2.35/Makefile.in
OBJ_CC=
.....................
multimedia/mm-app.o multimedia/udp-mm.o \
  1. Register the new application header by modifying "packet.h" (~ns-2.35/common/packet.h) and "ns-packet.tcl" (~ns-2.35/tcl/lib/ns-packet.tcl) as shown below.
Change the following lines to
// AOMDV packet

static const packet_t PT_AOMDV = 72;

// insert new packet types here
static packet_t PT_NTYPE = 73; // This MUST be the LAST one

// AOMDV packet

static const packet_t PT_AOMDV = 72;

static const packet_t PT_Multimedia = 73;
// insert new packet types here

static packet_t PT_NTYPE = 74; // This MUST be the LAST one

Change the following lines to
name_[PT_AOMDV]= "AOMDV";
name_[PT_NTYPE]= "undefined";


name_[PT_AOMDV]= "AOMDV";
name_[PT_Multimedia]="Multimedia";
name_[PT_NTYPE]= "undefined";

change the following lines in the ns-packet.tcl
# Other:

Encap # common/encap.cc

IPinIP # IP encapsulation

HDLC # High Level Data Link Control

# Other:

Encap # common/encap.cc

IPinIP # IP encapsulation

HDLC # High Level Data Link Control

Multimedia

  1. Add supportMM() and enableMM() methods to the "Agent" class in "agent.h" (~ns-2.35/common/agent.h) as shown below.

Add the two yellow colored lines in agent.h in Agent Class
class Agent : public Connector {

public:

--------------------------

virtual void sendmsg(int sz, AppData*, const char* flags = 0);

virtual void send(int sz, AppData *data) { sendmsg(sz, data, 0); }

virtual int supportMM() { return 0; }
virtual void enableMM(){}

virtual void attachApp(Application* app);

virtual int& size() { return size_; }

  1. Add recv_msg() method to the "Application" class in "app.h" (~ns-2.35/apps/app.h) as shown below.

Add the yellow line to app.h in Application Class.
class Application : public Process {

public:

Application();

virtual void send(int nbytes);

virtual void recv(int nbytes);

virtual void recv_msg(int nbytes, const char *msg=0){}

virtual void resume();

  1. Set default values for the newly introduced configurable parameters in "ns-default.tcl" as shown below.
# There are five rates in which the application layer is supporting..
Application/MmApp set rate0_ 0.3mb
Application/MmApp set rate1_ 0.6mb
Application/MmApp set rate2_ 0.9mb
Application/MmApp set rate3_ 1.2mb
Application/MmApp set rate4_ 1.5mb

Application/MmApp set pktsize_ 1000
Application/MmApp set random_ false

  1. Be SURE to complete this last step. Otherwise, all five-scale rates are initialized to zero unless specified in the input simulation script (i.e., the test simulation script given below will not transmit any frames).
  1. Go to ns-2.35 using shell prompt and enter the commands
./configure
make
  1. Run the file using “ns testmm.tcl” (this is to test your multimedia using applications) 

     Here is a sample output
    Multimedia Agent
     

 T S Pradeep Kumar

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