Packet Scheduling for Fibre Channel Switched Fabric Under Hard Real Time Constraints
Xiong Hua · Chinese Journal of Computers · 2006
Fibre channel is a computer communications protocol designed to meet many requirements related to the ever increasing demand for high performance information transfer.Switched fabric is one of basic fibre channel topology.Fixed-length packet scheme is mainly used in fibre channel switches.Taking the study on fibre channel switched fabric under hard real-time constraints as background,a new packet scheduling algorithm is proposed based on Weighted Round Robin.The necessary and sufficient conditions of guaranteeing message deadlines under the packet scheduling algorithm has been derived.Taking the achievable utilization of the worst case as the main index,the merit of the algorithm has also been derived and tested with simulation results.