Abstract: According to the current situation and demand of railway signaling system safety data network, combining with the national network security level protection system, this paper puts forward the integrated network security protection scheme, and briefly describes the technology that can be used to realize the scheme.

Key words: signaling safety data network, network security, network level protection

摘要： 根据铁路信号系统安全数据网的安全现状和需求，结合国家网络安全等级保护制度，提出整体性的网络安全防护方案，并对方案实现可以采用的技术做简要阐述。

关键词: 信号安全数据网, 网络安全, 等级保护