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基于IP骨干网的虚拟专用网理论与实现
引用本文:李秀忠. 基于IP骨干网的虚拟专用网理论与实现[J]. 中国工程科学, 2002, 4(3): 84-91
作者姓名:李秀忠
作者单位:信息产业部电信科学技术研究院,北京,100088
摘    要:讨论了虚拟专用网(VPN),尤其是IP-VPN的相关方面。在此基础上分析了IP-VPN的虚拟专用路由网(VPRN)和虚拟专用局域网 (VPLS)两种类型。着重讨论了VPRN的两种实现机制--边界网关协议/多协议标记交换(BGP/MPLS)和虚拟路由器(VR),并进行了比较。实现了一种VPLS--虚拟局域网(VLAN)。最后从理论上探讨了基于网络的VPN的服务质量(QoS)并提出了一种VPN QoS的实现途径。

关 键 词:虚拟专用路由网(VPRN);虚拟专用局域网段(VPLS);边界网关协议/多协议标记交换(BGP/MPLS);虚拟路由器(VR);最坏情况加权公平排队(WF2Q);随机早期检测(RED)
文章编号:1009-1742(2002)03-0084-08
收稿时间:2001-10-11
修稿时间:2001-10-11

Research and Implementation of IP - VPN
lixiuzhong. Research and Implementation of IP - VPN[J]. Engineering Science, 2002, 4(3): 84-91
Authors:lixiuzhong
Abstract:Recently, IP-VPN is proposed as a way satisfying large company's inter|connect requirement because of the prevalence of Internet. But there are some problems to be solved, especially security and QoS. In this paper, one way of network|based VPN QoS is proposed based on analysis of some available QoS algorithms. For IP-VPN, now there are several mechanisms: VLL,VPRN,VPLS and VPDN. This paper places emphasis on VPRN and VPLS. Two kinds of VPRN: BGP/MPLS and VR are discussed and compared with each other. And besides, VLAN, one way of VPLS, is introduced. [
Keywords:virtual private routed network (VPRN)  virtual private LAN segment (VPLS)  border gateway protocol / multi|protocol label switch (GP/MPLS)  virtual router (VR)  worst|case weighted fair queue (WF+2Q)  random early detection (RED)
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