海上舰船局域网络节点的脆弱性分析

Analysis of vulnerability of network nodes in marine ships

常规舰船局域网络节点分析方法能够准确的分析出节点通信负载,以及节点运行所需频带宽度。但在遭受不同程度的网络攻击时,存在节点脆弱性评估准确率较低的不足,易产生部分局域网络瘫痪或停止工作,为此提出海上舰船局域网络节点的脆弱性分析。引入脆弱性容忍机制,计算有效网络节点最大容忍率,构建脆弱性分析结构体系,判断脆弱性类型。对3种常见拓扑结构的舰船局域网络节点进行不同类型的脆弱性分析,分析产生脆弱性的因素,并对其进行评估,实现提出的海上舰船局域网络节点的脆弱性分析。试验数据表明提出的脆弱性分析较常规脆弱性分析方法评估准确率提升42.87%。

The conventional ship LAN node analysis method can accurately analyze the node communication load and the bandwidth of the nodes. But in different levels of network attack, the existing node vulnerability assessment of low accuracy, easy generation of local area network or stop working, and therefore put forward the sea ships vulnerability analysis of local area network nodes. The vulnerability tolerance mechanism is introduced to calculate the maximum tolerance rate of effective network nodes, construct the vulnerability analysis structure system, and judge the vulnerability type. Ships of three common topology for different types of local area network node vulnerability analysis, vulnerability analysis, and carries on the evaluation of implementation of maritime ship vulnerability analysis of local area network nodes. The experimental data show that the vulnerability analysis proposed in this paper is 42.87% higher than the conventional vulnerability analysis method.