Network Simulator 2 (NS2) : NS2 Advantages And Disadvantages

To run the Network Animator in the finish procedure of the script call nam.exe with name file name as

proc finish {} {

     global ns nf f

     $ns flush-trace

     close $nf

     close $f

     exec nam outEx1.nam &

     exit 0

}
					

7. Advantages and Disadvantages of NS2

Advantages

• Cheap- Does not require costly equipment
• Complex scenarios can be easily tested.
• Results can be quickly obtained-more ideas can be tested in a smaller time frame.
• Supported protocols
• Supported platforms
• Modularity
• Popular

Disadvantages

• Real system too complex to model. i.e. complicated structure.
• Bugs are unreliable

8. References

1. The Network Simulator-ns-2. [Online]. Available: ttp://www.isi.edu/nsnam/ns/

2. Tools-for-Creating-TCL-Script-in-Network-Simulator-2-NS-2