摘要
虚拟局域网技术作为有效控制广播报文,增强网络安全方面起到了重要作用,但是同时也改变了网络逻辑拓扑与设备间物理连接的对应关系。在介绍传统的基于地址转发表物理网络拓扑发现算法后,探讨获得不同交换机上VLAN配置信息的方法,提出一种在传统物理网络拓扑发现算法的基础上加入VLAN配置信息查找分析的新方法。
Virtual LANs (VLANs) allow IP network managers to completely break the linkage between the physical and logical network by grouping the interfaces of the same physical network element into different subnets. After introduce the traditional algorithm of physical topology discovery based on address forwarding table, an approach to get VLAN configuration from different kinds of switches is discussed, and a new algorithm for physical topology discovery with VLAN support is proposed.
出处
《计算机与数字工程》
2007年第11期3-5,27,共4页
Computer & Digital Engineering
关键词
网络拓扑发现
SNMP
VLAN
network topology discovery,simple network management protocol (SNMP),VLAN