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交换机是按照通信两端传输信息的需要,采用人工或设备自动完成的方法,把要传输的信息送到符合要求路由上的技术统称,它是一种基于MAC(Media Access Control)地址识别,完成数据包封装转发的网络设备。交换机是计算机网络数据包的汇聚节点,常被作为网络攻击的重点对象,因此,保障交换机数据流转安全是计算机网络信息安全的重要内容。构建安全的计算机网络应充分发挥交换机的安全设置功能。安全的交换机集多项功能于一体,如,安全接入认证、防火墙技术、ACL等,且具备一定的预防病毒入侵功能,是全面保护网络通信安全的基础。~([1])
Switch is based on the transmission of information at both ends of the communication needs, the use of artificial or equipment automatically completed method, the information to be transmitted to meet the requirements of the routing technology collectively, it is based on MAC (Media Access Control) address recognition, completed Packet encapsulation forwarding network equipment. Switch is the aggregation node of computer network packet, which is often regarded as the key target of network attack. Therefore, ensuring the security of switch data flow is an important content of computer network information security. Build a secure computer network should give full play to the switch security settings. Security switches set a number of functions in one, such as security access authentication, firewall technology, ACL, etc., and have a certain degree of prevention of virus intrusion, is fully protected network communications based on security. ~ ([1])