Performance model of bandwidth allocation strategies for multimedia FDDI networks

With rapid development in multimedia communications, the problem of handling traffic with different quality of service requirements has become a crucial one, particularly in the area of internets. In this paper, the case of a bridged FDDI network carrying multimedia traffic is studied in detail. In particular, various channel access mechanisms are proposed for the bridge, and the performance of inter- and intra-network traffic investigated. It is found that simply increasing the priority of the bridge is not effective. However, reserving part of the the synchronous bandwidth of FDDI for delay sensitive inter-network traffic results in acceptable packet loss and delay for both intra- and inter-network traffic, and it may be possible to further optimize the scheme by adapting the allocation of synchronous bandwidth according to traffic conditions