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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

Flow Monitor in ns3

Flow Monitor - ns3

Flow monitor is a powerful too that identifies the performance characteristics of networks

Flow Monitor
Already there are some examples within ns3. We will be using one example called as third.cc
and another example called as manet-routing-compare.cc

Check the Video for complete instructions:

Download all the source Codes here:
https://drive.google.com/drive/folders/14B7QtvAgaiDvBtf-cn8R_mseUYorWkRN?usp=sharing

Step 1: Copy the above files from examples/tutorial/third.cc and move it to scratch/ folder

Copy manet-routing-compare.cc from examples/routing/ and move it to scratch/

Step 2: Include the code relevant for flow monitor.
There are two header files to be included

#include "ns3/flow-monitor.h"
#include "ns3/flow-monitor-helper.h"

Include the following lines above the Simulator::Stop()
// Flow monitor
Ptr<FlowMonitor> flowMonitor;
FlowMonitorHelper flowHelper;
flowMonitor = flowHelper.InstallAll();

include the follwing line after the Simulator::Run()

flowMonitor->SerializeToXmlFile("third.xml", true, true);


Step 3: Run the example
$] ./waf --run scratch/third

Check for the third.xml file that was created using flow monitor.

To process this file, we need to search within ns3 for a parsing file.

/home/pradeepkumar/ns-allinone-3.27/ns-3.27/src/flow-monitor/examples/flowmon-parse-results.py

We can copy this file to the location where the third.xml file is created or generated.
~ns-3.27/

Step 4: PArse this file using the command given below

Parsing and plotting using python script (Matplotlib)

https://www.nsnam.com 

Step 5: flow.py which was generated manually for parsing the flowmonitor xml file.

Now With Complicated Example:manet-routing-compare.cc

We will be generating file called pradeepflow.flomon in the above example
To see more about the source code and the explnation follow this link or see the descirption ()

$] ./waf --run scratch/manet-routing-compare

flowmonitor
FlowMonitor

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