摘要
虚电路连通性验证（VCCV）是一种L2VPN的OAM机制,属于PWE3技术的范畴。VCCV在伪线（Pseudowire,PW）终端之间建立一条控制通道,并使用该控制通道在两个PE路由器间传送OAM信息,从而实现PW转发路径端到端的故障检测和诊断。
Virtual Circuit Connectivity Verification （VCCV） is an OAM（Operation and Maintenance）mechanism of layer 2 Virtual Private Network,which belongs to a scope of Pseudowire Edge to Edge Emulation（PWE3）technology.VCCV builds a control channel between the endpoints of the pseudowire （PW）,and then it transports OAM messages between the two Provider Edge routers through the control channel,so as to achieve the end-to-end fault detection and diagnostics of pseudowire’s forwarding path.
出处
《电脑与电信》
2010年第8期32-34,46,共4页
Computer & Telecommunication
