Diseño de issim y evaluación de algoritmos de ernrutamiento con calidad de servicio

ISSIM is a discrete event simulator designed to evaluate routing algorithms with and without routing quality of service capabilities in Best Effort and Integrated Services architectures. ISSIM is a tool that allows to build network topologies in a graphic way and results are delivered in a spreadsheet compatible format. A new simulator was designed because of necessity of comparing the three routing algorithms, SPF and QOSPF precalculus and calculus on demand, under the same conditions. Among the found results are the complexities of the Dijkstra algorithm and its variants with Quality of Service (precalculus and calculus on demand), the impacts in the process time and used bandwidth.