BFD(Bidrectional Forwarding Detection)双向转发检测,用于快速检测系统设备之间的发送和接受两个方向的通信故障,并在出现故障时通知生成应用。BFD广泛用于链路故障检测,并能实现与接口、静态路由、动态路由等联动检测。本文将介绍如何在华为设备上配置BFD与OSPF联动,以提高链路的可靠性。具体拓扑如下:
1.IP地址的配置
R1: inter g0/0/1 ip address 10.0.13.1 24 inter g0/0/0 ip address 10.0.12.1 24 R2: inter g0/0/0 ip address 10.0.13.13 24 R3: inter g0/0/0 ip address 10.0.12.12 24 配置ospf协议实现路由通信 R1: ospf 1 area 0.0.0.0 network 10.0.12.0 0.0.0.255 network 10.0.13.0 0.0.0.255 R2: ospf 1 area 0.0.0.0 network 10.0.13.0 0.0.0.255 R3: ospf 1 area 0.0.0.0 network 10.0.12.0 0.0.0.255 area 0.0.0.1
2.配置bfd与ospf联动
配置BFD session需要在系统全局下开启BFD,并且在OSPF视图下启用联动BFD。
R1: bfd // 启用bfd quit ospf 1 bfd all-interfaces enable //在osp视图下启用联动bfd R2: bfd quit ospf 1 bfd all-interfaces enable
3.display bfd session all查看bfd会话