NS3 Simulation Examples
NS3 simulation examples help researchers and students understand how NS3 works. NS3 was developed primarily for education and research purposes, as the successor to NS2. It is written in C++ with Python bindings. NS3 is an open-source discrete event network simulator that allows realistic simulation models, making it usable as a network emulator for real-time scenarios.
Installation:
1. Download the NS3 source files from the official website.
2. Install Python and C++ as prerequisites.
3. NS3 is built and run using WAF.
Running the Simulator:
To build and run an NS3 project after coding, use the following commands:
1. $ cd ns-3.x
2. $ cp filepath/filename.cc .
3. $ ./waf --run filename
Steps to Write a Script:
To simulate a network in NS3, the script should include the following steps:
1. Include all required header files.
2. Create network nodes.
3. Configure MAC and PHY layers.
4. Interconnect the network devices.
5. Install the protocol stack.
6. Set routing, tracing, and simulation start/end times.
7. Run the simulation using ./waf --run filename.
Running NS3 in Network Animator (NetAnim):
1. Include the NetAnim module header:
#include "ns3/netanim-module.h"
2. Create the animation XML file:
AnimationInterface anim("filename.xml");
3. Set node positions:
anim.SetConstantPosition(nodes.Get(0), 1.0, 2.0);
anim.SetConstantPosition(nodes.Get(1), 2.0, 3.0);
Running NS3 in Python:
1. Create a Python script file.
2. Run the program with:
./waf --run filename --visualize
We support UG and PG scholars to complete their NS3 projects and help them understand NS3 concepts as well as NS2 simulation examples for better learning.
