A simulation study of a CSMA/CD with connected data links

Since local area networks (LANs) have become a vital part of the modern computing, a great deal of eflort has been devoted to their design, standarization, and implementation. Most of this work has been based on a simple linear bus or ring topology (Ethernet, Token Bus, ard Token Ring). However, the linear bus and ring topology networks have signijicant disadvantages in certain applications. Recently, we proposed a new hybrid architecture local area network, Hybrid-Meshnet. m e HybridMeshnet allows an insertion and/or deletion of data linh into/@-om existing local area networks: Ethernet or Token Ring. The earlier works have concentrated on a token ring with connected data links. In this paper, we investigate another Hybrid-Meshnet network architecture, CSMAICD with connected data links. A simulation model is designed for the purpose of performance measure of the proposed network. Sitnulation results indicates that, even with small increase in link cost by addition of direct data links, pelformanee can be improved significantly over a pure Ethernet.