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分析了三种防火墙技术,然后在OPNET仿真平台中构建仿真场景及模型,两种不同的场景对网络性能产生了不同的影响,通过比较两种情况下经过量化的网络性能指标变化曲线,可以得出结论:网络所需的安全程度和数据操作速度之间存在着一个权衡。
Three kinds of firewall technologies are analyzed, and then the simulation scenarios and models are built on the OPNET simulation platform. Two different scenarios have different effects on the network performance. By comparing the quantified network performance indicators in two cases, Conclusion: There is a trade-off between the degree of security required by the network and the speed of data manipulation.