摘要
介绍了三层交换机和基于 IP的三层 VLAN技术 ,论述了基于数据链路层的 VLAN和基于IP层的 VLAN的区别 .并结合实际的组网情况和网络设计的需求 ,就 VLAN聚合技术的原理及其在嵌入式操作系统中的实现 ,包括具体的协议栈接口 ,收发包流程等 ;针对 VLAN聚合技术中不同子 VLAN互相通信的需求 ,简述了 arp代理模型和具体的工作流程 .
This paper gives the details of VLAN aggregation technique and explains not only the concept of it, but also explains its works in an embedded operating system-vxworks. This paper also discusses layer-3 switch and network VLAN, puts forward that the layer-2 VLAN role and layer-3 VLAN role. It introduces the notion of sub-VLANs and super-VLANs, a much more optimal approach to IP addressing can be realized. This paper will expatiate the VLAN aggregation model and its implementation in ethernet access network. It is obvious that the customers in different sub-VLANs can not communication to each other because the ARP packet is isolated. Proxy ARP can enable the communication among them. This paper also expatiates the proxy ARP model and its implementation in ethernet access network.
出处
《武汉理工大学学报（交通科学与工程版）》
2005年第1期141-143,146,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
湖北省教育厅科学研究计划重点项目资助 (批准号 :2 0 0 4x0 72 )
