一种改进的层次化MPLS VPN方法研究  

Research of an Improvement Hierarchical MPLS VPN

作　　者：陈莹莹[1] Chen Yingying(Jinjiang College Sichuan University,Meishan Sichuan,620860)

机构地区：[1]四川大学锦江学院,四川眉山620860

出　　处：《电子测试》2019年第2期85-86,98,共3页Electronic Test

摘　　要：针对传统层次化MPLSVPN方案中,同环UPE间的业务转发需经SPE中转,导致转发时延较大,经SPE迂回转发浪费带宽资源等问题,本文提出了一种改进的层次化MPLSVPN方法。在改进方法中,SPE在向UPE下发默认路由的同时,反射同环UPE之间的VPN明细路由,实现了同环UPE间业务转发路径最短。实验结果表明,本文方法降低了在同环UPE之间的业务转发时延和减轻了UPE-SPE间的带宽压力。In the traditional hierarchical MPLS VPN solution,the traffics of the UPEs located in same access r ing are transported by their homing SPE,which will cause the delivery time delay increase,and reduce the bandw idth waste by the SPE tortuous transmission for the data between UPEs,so an improvement hierarchical MPLS VPN is proposed.In the proposed solution,the SPE announce the default route to UPEs, meanwhile, reflect the detai led VPN routes from the UPEs in same access ring,and achieve the traffic transports among the UPEs in same rin g by the shortest path.The emulation experime reduce the bandwidth pressures of the link UPE-SPE.

关 键 词：层次化 MPLS VPN SPE UPE IGP BGP反射器 

分 类 号：TP393.0[自动化与计算机技术—计算机应用技术]