端口隔离技术在ISP宽带接入中已发挥重要作用,而在园区网中应用还不多,由于网络中病毒增多、危害加大,端口隔离技术越来越受到技术人员的重视。本文详细介绍了端口隔离技术的概况,端口隔离技术在不同厂商、不同层次交换机上不同的实现,具体分析和举例端口隔离技术在园区网中的规划、实施和应用。 Port isolation technology has played an important role in ISP broadband access, but not many applications in the campus network, due to increased virus in the network, increasing the harm, port isolation technology more and more attention by technicians. This article describes in detail the port isolation technology overview, port isolation technology in different vendors, different levels of switches on the different implementations, specific analysis and examples of port isolation technology in the campus network planning, implementation and application.