华为设备配置BFD单跳检测二层链路

1. 配置LSW1的BFD单跳检测
   [LSW1]bfd
   [LSW1]bfd atob bind peer-ip default-ip interface GigabitEthernet 0/0/1
   [LSW1-bfd-session-atob]discriminator local 1
   [LSW1-bfd-session-atob]discriminator remote 2
   [LSW1-bfd-session-atob]commit
2. 配置LSW2的BFD单跳检测
   [LSW2]bfd
   [LSW2]bfd btoa bind peer-ip default-ip interface GigabitEthernet 0/0/1
   [LSW2-bfd-session-btoa]discriminator local 2
   [LSW2-bfd-session-btoa]discriminator remote 1
   [LSW2-bfd-session-btoa]commit
3. 验证配置
   

对LSW1的GE0/0/1接口执行shutdown操作，模拟链路故障
[LSW1-GigabitEthernet0/0/1]shutdown