On the computer simulation of inter-processor communication unit in internet subsystem

摘要

Internet has been used to exchange information through Local Area Network (LAN) of companies, schools, research institutes and so forth, while mass supply of Personal Computers and increment of Internet usage have raised request of developing a system providing Internet services through public networks such as Public Switched Telephony Network (PSTN) or Integrated Services Digital Network (ISDN). We have considered and developed a subsystem of Time Division eXchange (TDX)-10 ISDN switching system which provides Internet access services, taking into considerations of traffic and quality problems. In this paper, Internet subsystem with a structure and function has been presented that turns the TDX-10 ISDN switching system into the optimized gateway between ISDN and the Internet. And, this paper developed simulation model and analyzed a performance of inter-processor communication unit which practically functions as an Internet traffic transfer. We examined simulation results, changing average packet size from 500 bytes to 2,000 bytes to estimate a performance according to the size of IP packet which was transmitted via inter-processor communication unit.