Design and Simulation of Interconnected Autonomous Systems

Autonomous Systems such as Internet Service Provider (ISP), Enterprise Networks and Academic Networks provide Internet services like internet transit, domain name registration and hosting, dial-up access, leasedline access and co-location. Simulation provides an insight into the behavior of these AS. The internal details like designing, configuring and maintaining networks through protocols that include routing, switching, etc are well understood by this paper. This paper describes how the design of Autonomous Networks can be built on a NetworkDesigner while using leased line and Ethernet technologies. Later these designs can be simulated on a Network Simulator with the use of routing and switching protocols. For this scheme to be implemented successfully different equipment like routers, switches, Ethernet and serial connection, PCs, etc are used and techniques like IP addressing schemes, CIDR and VLSM is implemented.