AFDX余度管理算法(RMA)研究与实现

The Research and Realization of AFDX RMA

采用余度网络是航电全双工交换式以太网(AFDX)的主要特色之一,它对于提高网络的可靠性能有重要作用。余度管理算法规定了余度网络帧的接收规则。目前,已知国外的余度管理算法有多种,但是由于算法自身的缺点,无法保证在网络质量较差时终端之间的通信质量。在已有算法的基础上研究一种新的余度管理算法来提高网络质量差时终端节点之间通信的可靠性已迫在眉睫。

Redundant network is one of the important features of AVIONICS FULL DUPLEX SWITCHED ETHERNET(AFDX) NETWORK,which is used to improve the reliability of the network.Redundancy Management Algorithm is the rules of accepting frames.At present,there are several RMAs in foreign countries,but they are not perfect,especially when the quality of network is terribly bad.It is time to invent a new RMA which not only inherits the advantage of the old RMAs but also improves the communication quality among nodes when the quality of network is terribly bad.