Method for business dispatching in time triggering FC network

Abstract

The present invention discloses a method for business dispatching in a time triggering FC network, and relates to the field of an FC network. The method comprises the following steps of: establishinga network model, calculating a cluster period, and determining the length of a single time slot of each time triggering message; determining the priority of a TT message according to a certain rule; planning a link transmitting the TT message; detecting the schedulability of the TT message; selecting the TT message with the highest priority to arrange the time slot of the TT message; according tothe periodicity and the transmission link of the TT message, arranging all other time slots; arranging the TT message of the next priority, and solving a time slot map meeting conflict-free and periodsending of all the TT messages in all the links; and according to a whole network and total business time slot map, solving the sending and receiving time dispatching tables in each terminal and eachexchange. The method ensures the transmitting and receiving of the message determinacy in the optical fiber channel network so as to meet the demand of real-time message dispatching in the complex application system and allow the upper-layer application system performance to be more determined and reliable.

Description

technical field [0001] The invention relates to the field of FC networks, in particular to a method for time-triggering service scheduling in the FC network. Background technique [0002] With the gradual improvement of the integration degree of avionics system, the avionics network is developing towards the direction of large throughput, strong scalability and strong real-time performance. FC (Fiber Channel) is currently one of the better avionics network solutions due to its advantages of high bandwidth, high speed and low delay. The real-time performance of avionics network is a research hotspot in recent years. The goal is to ensure that the end-to-end delay of avionics messages meets certain time constraints from sending to receiving. In order to support the application of the FC protocol in the avionics system, the FC protocol standard development committee specially organized and established a subcommittee, which formulated a protocol draft for the avionics environme...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is: to solve the following three problems in the existing FC network business scheduling method: (1) solve the problem that the existing scheduling algorithm consumes a large amount of computing space, and the algorithm execution efficiency is low; (2) only plan the time of the sending end The scheduling table does not consider the situation that the message transmission link does not conflict, and the time slot can conflict, which improves the bandwidth utilization of the existing scheduling algorithm; (3) does not consider the time slot conflict of the intermediate node of the link, resulting in the uncertainty of message transmission characteristics; the present invention provides a method for time-triggered business scheduling in FC networks

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