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    • 3. 发明申请
    • METHOD, APPARATUS, AND SYSTEM FOR MIGRATING VPN ROUTING AND FORWARDING INSTANCES
    • 用于迁移VPN路由和转发实例的方法,设备和系统
    • US20110310903A1
    • 2011-12-22
    • US13224960
    • 2011-09-02
    • Boyan TuLixin ZhangShuanglong ChenJianwen LiuJianbin XuXiaohui Liu
    • Boyan TuLixin ZhangShuanglong ChenJianwen LiuJianbin XuXiaohui Liu
    • H04L12/56
    • H04L45/586H04L45/04
    • A method, an apparatus and a system for migrating VPN Routing and Forwarding (VRF) instances are disclosed. The system includes: a first BGP process, configured to: send a VRF instance and configuration information of BGP peers in the VRF instance to a second Border Gateway Protocol (BGP) process; instruct a Transport Control Protocol (TCP) to back up a TCP link to the second BGP process in a hot backup mode, where the TCP link is related to peer sessions of the BGP peers in the VRF instance; and the second BGP process, configured to: receive routes in an Adjacent Ingress Routing Information Base (Adj-RIB-IN) sent by the first BGP process unit. In the embodiments of the present invention, BGP peers services of the VRF instance are not interrupted, and the sessions are not disconnected; a peer device cannot perceive the migration process of a router completely; and changed routing information in the migration process is updated after the migration.
    • 公开了用于迁移VPN路由和转发(VRF)实例的方法,装置和系统。 该系统包括:第一个BGP进程,用于:将VRF实例中的BGP对等体的VRF实例和配置信息发送到第二个边界网关协议(BGP)进程; 指示传输控制协议(TCP)以热备份模式备份到第二BGP进程的TCP链路,其中TCP链路与VRF实例中的BGP对等体的对等体会话相关; 和第二BGP进程,被配置为:在第一BGP进程单元发送的相邻入口路由信息库(Adj-RIB-IN)中接收路由。 在本发明实施例中,VRF实例的BGP对等体业务不中断,会话不断开; 对等设备无法完全了解路由器的迁移过程; 并且在迁移过程中更改路由信息在迁移之后被更新。