A transmission method and system for an fc switching network

Abstract

The present invention provides a transmission method and system of an FC switching network. The method includes: responding to the current message sending request, selecting the first port as the main port from several candidate ports according to the link connection status, so as to use the first port to The message is transmitted; among them, the candidate port is connected with the corresponding port of the same FC switch; when it is judged that the current message transmission is abnormal, the second port is selected from the remaining candidate ports as the main port, so as to use the second port to process the current message Retransmission; if the retransmission of the current message is successful, keep using the second port as the main port, so as to use the second port to transmit the next message. The invention can effectively reduce the system complexity of the FC communication network by integrating the FC switch and improving the port dynamic switching mechanism, improve the system communication efficiency and avoid bandwidth waste, and improve the flexibility of system configuration.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a transmission method and system of an FC switching network. Background technique [0002] The switched network based on the FC_AE_1553 protocol is mainly used in aviation, aerospace and military fields, as communication interconnection, data transmission, command and control between electronic devices, it has high reliability, high stability, high bandwidth, anti-strong electromagnetic interference and engineering The advantages of simple and quick application. [0003] FC_AE_1553 switched network communication system is composed of one NC (Network Controller, network controller), multiple NT (Network Terminal, network terminal) and FC switches. During the communication process, messages are exchanged and data is transmitted through optical fibers. The transmitted data The reliability and stability of the transmission are guaranteed by encoding. [0004] In order...

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Problems solved by technology

[0006] 1. The setting of redundant switches increases the complexity of the system and increases the cost;

[0007] 2. In the cold backup mode, when the main port fails to transmit and then transmits successfully through the backup route, the next message will still be initiated by the master port, and then transfer to the backup route after the transmission fails. This transmission control method reduces the system Communication efficiency and waste of bandwidth;

[0008] 3. The connection mode of NC and NT is fixed, and the flexibility of configuration operation is insufficient

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