Can a BFD session on an S7700 be bound
to the physical status of an interface?
BFD session can be bound to the physical status of an interface to monitor the
interface status. The command is as follows:
bfd bfd1 bind peer-ip default-ip interface GigabitEthernet0/0/1 // Create a BFD
session to be bound to GigabitEthernet0/0/1.
process-interface-status //Associate the BFD session with the interface. By
default, a BFD session is not associated with an interface. That is, the status
change of the BFD session does not change the interface status in the interface
BFD must be enabled globally before running the bfd bind peer-ip default-ip command.
When a transmission device is deployed along the direct link, BFD can detect
the link fault faster than the link protocol fault detection mechanism of an
Therefore, to notify an application of the BFD detection result more quickly, the
system adds the status of the BFD session bound to an interface to the
interface in the interface management module of the device. The system detects
the interface status based on the link status, protocol status, and BFD status
of the interface and notifies the application
of the detection result.