Currently exists many software tools designed
for Network Simulation (both commercial and
Open source), situation that present an important
decision to make for many researchers: Which tool
use for network simulation? This paper proposes
a method for evaluation/selection of network
simulation tools, based in two key factors: ISO/IEC
9126-1 standard, which defines a quality model for
software evaluation; and a cost function, based on
values assigned to each one of the six items defined
by ISO/IEC 9126-1. This method allows an
expert based classification for each of the analyzed
tools. We executed a test for NS-2 and NCTUns
network simulation tools and obtained results was
contrasted with technical reports and scientific
articles related with network simulation tools.
