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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 0:00:00
修稿时间:2001年10月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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