光纤通道基于信用的流控机制与性能评价

信用是光纤通道节点在注册过程中配置的重要服务参数,其大小直接决定两节点的通信性能.详细分析了光纤通道基于信用的两种流控机制与实现算法,建立了流量控制与差错控制技术的分析模型,基于有差错、无差错带确认这两种情况,分别导出了链路吞吐量与信用值、带宽、单帧出错概率、通信距离等的关系.最后给出了光纤通道网络在航空航天近距离应用场景下的最优信用的取值及序列划分的建议.

Abstract：

As an importance service parameter of login between two communication nodes, credit will have a great influence on the communication performance. Particularly analyzed is two flow-control mechanisms of fiber channel and its implementation algorithm and models of flow-control and error-control. The relationships between link throughput and credit, bandwidth, single frame error probability, communication distance are derived and formally proved. Finally, for near scenes of aerospace vehicle, proposals of best credit and sequence length are put forward.

Flow-control mechanism based on credit and performance evaluation in fiber channel

As an importance service parameter of login between two communication nodes, credit will have a great influence on the communication performance. Particularly analyzed is two flow-control mechanisms of fiber channel and its implementation algorithm and models of flow-control and error-control. The relationships between link throughput and credit, bandwidth, single frame error probability, communication distance are derived and formally proved. Finally, for near scenes of aerospace vehicle, proposals of best credit and sequence length are put forward.