PC-NETSIM: A PC Based Network Simulation.

摘要

PC-NETSIM is an IBM PC/XT/AT 386 based packet radio net work simulation with a number of interesting and innovative features. Since the target system (the packet radio) has the came CPU as the PC, the simulation is able to run the target software without modification. This leads to a test environment which is so realistic that the communication protocols behave for the most part exactly as they would in a real network, even down to the level of processing delays and multiple access channel interference. It also provides a development environment that has many advantages over using real network hardware, such as network-wide state information during trace breakpoints, exact experiment repeatability, and a graphical representation which gives a very dynamic view of network variables. A description of the PC based real time operating system under which PC-NETSIM runs, and the Ethernet based testbed environment, are also provided. (RH)