BFD检测trunk成员接口：
bfd bfd_trunk1:1 bind peer-ip default-ip interface GigabitEthernet7/0/2
discriminator local 311
discriminator remote 310
min-tx-interval 30
min-rx-interval 30
process-interface-status
commit
当trunk过传输时重要
静态路由关联BFD：
bfd 名称 bind peer-ip X.X.X.X *** ***.signal interface GigabitEthernetX/X/X source-ip X.X.X.X
discriminator local 251
discriminator remote 250
detect-multiplier 5
commit
ip route-static X.X.X.X XX GigabitEthernet7/0/0 10.3.39.2 track bfd-session 名称