Abstract: This paper presents a mobile IPv6(MIPv6) testbed, which is built in a LAN. Handover of mobile node(MN) is implemented by re-partitioning VLAN in switches, which is different from traditionally using “pull out and plug in” of cable or modification of wireless ESSID. The organization, handover implementation and control program of the testbed are introduced. Emulation results show that compared with traditional handover methods, the VLAN-partition based method is more convenient and faster.

Key words: MIPv6, VLAN, Network emulation

摘要： 介绍了一种移动IPv6实验系统。该系统建立在局域网环境中，移动节点漫游切换的实现采用了不同于传统手工拔插线或修改ESSID的方法，即通过在交换机中划分VLAN来实现。介绍了实验系统的构成、移动节点切换以及系统控制程序的实现。实验结果表明，与传统切换方式相比，采用基于VLAN的切换方式不仅使MN的切换更加方便、快速，而且使MN切换过程中的丢包和时延也都得到了改善。

关键词: MIPv6, VLAN, 网络仿真