Implementation and Performance Enhancement of a PC Based LAN/WAN Router with a Differential QOS Feature [chapter]

S. V. R. Anand, Anurag Kumar
1995 Computer Networks, Architecture and Applications  
In this paper we describe our approach to, and experiences in, developing a PC based IEEE 802.3 LAN-X.25 WAN IP router. The basic router functionality is achieved by integrating a commercially available synchronous serial port card for the PC-AT bus, and our enhancements of public domain or licensed pre-production source code for the communication protocols. The router implements a strategy developed in [Kumar et al., 92] for providing differential QOS to bulk transfer and interactive traffic
more » ... WAN links. Various link level policies are studied to further improve the QOS. Several other performance issues that we encountered while developing the router are discussed. We study various task handling strategies for the router software to arrive at the ideal combination that gives the peak performance. The issues, and their resolutions for physical interface handling are detailed. Experimentation done to compare the various alternatives for resolving these issues are reported. Keywords PC based router, CLNS over CONS internetworking, X.25, RFC 877
doi:10.1007/978-0-387-34887-2_18 fatcat:qulqr37mafftdkuvjlwr5r2bly