MPLS VPN用户网接入方式的仿真分析

介绍了多协议标记交换虚拟专用网的出现和特点，阐述了其用户路由被隔离和通告的基本原理。针对多协议标记交换虚拟专用网中用户网的接入方式问题，建立仿真模型，对用户网不同的接入方式分别进行了仿真，并统计得到提供商边缘路由器CPU的利用率和内存占用情况。利用仿真结果，对这三种接入方式进行了对比分析，给出了各自的优缺点。

The Simulation Analysis of Customer Network Access to MPLS VPN

The emergence and characters of the Multi-protocol Label Switch Virtual Private Network were introduced, and the basic principle of the customer routing information being differentiated and advertised was described. To study the ways that Customer Network accessing to the MPLS VPN backbone, firstly, the simulation model was built and the network operation in different accessing way was simulated. Then, some statistics of the CPU utilization factors and memory occupancy of the Provider Edge router were received. Lastly, based on the statistics, these accessing ways were analyzed and some conclusions were reached about the advantages and disadvantages of them.