Performance modelling of LAN bridges and routers

Bridges and routers are used to interconnect local area networks (LANs). The performance of these devices is important since they can become bottlenecks in large multi-segment networks. Performance metrics and a test methodology for bridges and routers have not been standardized. Performance data reported by vendors is not applicable to the actual scenarios encountered in an operational network. However, vendor provided data can be used to develop models of bridges and routers which, along with other models, yield performance data for a network. Several tools are available for modelling bridges and routers, and Network II 5 was used for the present study. The results of the performance modelling and analysis of some bridges and routers are presented