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VPNQoS的实现途径。
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. [
出处
《中国工程科学》
2002年第3期84-91,共8页
Strategic Study of CAE
关键词
IP骨干网
虚拟专用路由网
虚拟专用局域网段
边界网关协议/多协议标记交换
虚拟路由器
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)
