Why the simulation results are not stable?

One of the main problem for simulation for NS-2 is that sometimes the simulation results are not stable and inconsistent. This is due to the fact that NS-2 simulator requires big memory space for simulation of large networks. Therefore, it's important to debug malloc calls, memory leaking, buffer overruns, etc. by using tools such as DDD (Data Display Debugger) or dmalloc.

For more information and DDD tutorial, read here

tags: network, simulator, ns2, memory, debug, ddd, dmalloc, simulation