BFD技術-實驗配置

【靜態路由-創建BFD】
[R1] bfd //開啟BFD

[R1] bfd 1 bind peer-ip 10.0.12.2 source-ip 10.0.12.1 auto
//創建進程1
[R1-bfd-session-1] commit
[R2]bfd
[R2]bfd 1 bind peer-ip 10.0.12.1
source-ip 10.0.12.2 auto
[R2-bfd-session-1]commit

【靜態路由-引用BFD與靜態路由聯動】
[R2] ip route-static 10.0.0.0 8
10.0.12.1 //指向R1
[R3] ip route-static 10.0.0.0 8
10.0.13.1 //指向R1
[R1] ip route-static 0.0.0.0 0.0.0.0
10.0.12.2 track bfd-session 1 //引用BFD
[R1] ip route-static 0.0.0.0 0.0.0.0
10.0.13.2 preference 100 //把備用路由優先值調高，高的不優先

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【BFD 與 OSPF 聯動】
[R1]bfd //全局開啟
[R1]ospf
[R1-ospf-1] bfd all
[R1-ospf-1] bfd all-interfaces enable
//所有接口開啟BFD聯動
debug ospf bfd //觀察日志

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【動態路由-創建BFD】
[R1] bfd //開啟BFD

[R1-bfd] bfd 1 bind peer-ip 192.168.45.2 source-ip 10.0.12.1
auto
[R1-bfd-session-1] commit
[R2] bfd
[R2-bfd]bfd 1 bind peer-ip 10.0.12.1
source-ip 192.168.45.2 auto
[R2-bfd-session-1]commit

【動態路由-引用BFD與VRRP聯動】
[R2-GigabitEthernet0/0/0] vrrp vrid 45
track bfd-session session-name 1 reduce
60


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[R1] display bfd session all
//查看所有BFD會話
[R1] display ip routing-table 0.0.0.0
0.0.0.0 verbose //查看某條路由詳細信息

實驗結果：主鏈路（R1~R2）故障后自動切換到
備用鏈路（R1~R3），主路恢復正常后會搶回來！