Name
Abstract | ||
|---|---|---|
ns-2 is a well known network simulator, recently extended with improvements to its emulation facility. Real-time constraints and the boundary between real-world and simulated entities impose scalability and accuracy limitations, and distort the simulated network as perceived by the involved real-world applications. This paper presents results from a performance evaluation of the ns-2 emulation facility. Conducting emulation experiments of differing magnitudes, and under varying emulation environment set-ups, we unveil central types of scalability limitations and obtainable accuracy. We find throughput limits using high and low end computers, and a significant throughput decrease when increasing the number of involved real-world applications. We furthermore show how end-to-end delay increases both with traffic load and an increasing number of involved real-world applications. Moreover, during these conditions, we find that the system treats these applications increasingly unfair by distributing total throughput unevenly between them, and by imposing different amounts of end-to-end delay. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.4108/ICST.SIMUTOOLS2009.5595 | SIMUTools |
Keywords | Field | DocType |
network simulation | Traffic load,Computer science,Computer network,Network simulation,Real-time computing,Emulation,Throughput,Network emulation,Distributed computing,Scalability | Conference |
Citations | PageRank | References |
4 | 1.18 | 5 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Stein Kristiansen | 1 | 72 | 11.86 |
| Thomas Plagemann | 2 | 496 | 69.84 |