Difference between NS2 and NS3:
Application level Difference between NS2 and NS3:
| NS3 | NS2 |
|---|---|
| NS3 can be act as the emulator that it can connect to the real world | NS2 can not be act as the emulator. |
| Some of the NS2 models can be imported to NS3 | NS3 scripts can not run in NS2 environment |
Programming Language level Difference between Ns2 and NS3:
| NS3 | NS2 |
|---|---|
| NS3 is written using C++ | NS2 is written with the help of TCL and C++. |
| Compilation time is not a matter | C++ recompilation takes more time more than TCL so most of the scripts are written using TCL |
| A Simulation script can be written in ns3 | Simulation script is not possible with NS2 |
| Python is available for the scripting language | Only TCL can be used as the scripting language |
Packets difference in NS2 and NS3:
| NS3 | NS2 |
|---|---|
| Information needed to send through the packet can be added at the header ,trailer, buffer ,etc | The header part of the NS2 includes all the information of header parts in the specified protocol |
| NS3 frees the memory that used to store the packets | NS2 never reuse or re allocate the memory until it get terminated. |
| The packet of ns3 consist of single buffer and small tags . | The packet of ns2 has headers and data for payload. |
File Format Difference between NS2 and NS3:
| NS3 | NS2 |
|---|---|
| .tr-> files used for trace analysis | . tr-> files used for trace parameters |
| .XML->files are used for network Animation | .nam -> files used for Network Animation |
| .csv-> files used for gnu plot | .xg -> files used for graph |
Visualization Difference between NS2 and NS3:
| NS3 | NS2 |
|---|---|
| Python visualizer , Network Animator visualization is available | Nam animator is available for visualization. |
Performance level difference between ns2 and ns3:
| NS3 | NS2 |
|---|---|
| Memory allocation is good | Memory allocation is not good as NS3 |
| System prevents unnecessary parameters to be stored. | Unnecessary parameters can not be prevented. |
| Total computation is less when compared to NS2 | Total Computation time is high when compared to NS3 |
We provide ns3 and ns2 projects guide students to do thier projects and shine in thier domain.We also make students clear the difference between ns2 and ns3.