摘要
新一代调度自动化系统要求与企业局域网建立广泛连接,而企业内部网往往又与Internet相连,这样给实时系统带来很大危险。做为电力系统运行和管理的基础,网络安全是最重要的,而仅靠逻辑上的隔离,往往不能有效防止攻击,因此物理隔离技术应运而生了。物理隔离阻断了内部网和外部网的直接连接,采用缓冲、代理以及过滤等方式,在不影响内外、网正常数据交换的前提下保证了实时系统网络的安全,这对电力系统计算机网络实时系统运行非常重要。
The new dispatching automation system needs wide connection with local area networks of enterprises, which often connect with Internet. This brings out great danger to real-time system. As the base of power system operation and management, network security is the most important. While real-time system can＇t be protected from attack effectively only with logical isolation, physical isolation has emerged as the times require. Using buffer, proxy and filter techniques, it breaks off the direct connection between inside and outside networks without influence on normal data exchange. In this way, physical isolation protects the real-time system network.
出处
《广东电力》
2006年第7期28-30,44,共4页
Guangdong Electric Power
关键词
电力调度网
网络安全
物理隔离
power dispatching network
network security
physical isolation
