BFD Management

Similar to a simple Hello protocol, the BFD is adopted to detect faults on the route layer. In this interface, you can set and query parameters related to bidirectional forwarding detection (BFD).

Navigation Path

In the NE Explorer, click the NE and choose Configuration > BFD management from the Function Tree.

Guideline

The BFD has the following functions:

Performs fault detection that brings light load and lasts for a short time for the channel where the BFD session is set up.
Adopts a uniform mechanism to detect faults for any medium and any protocol layer in a real-time manner.
Reduces the lost data.

Parameters

**Table 1** Descriptions of the parameters for BFD Management
Parameter	Value	Description
Session Type	Single-Hop	Selects the BFD session type. Single-Hop: Establish the BFD session for the link with one hop.Take the following precautions when setting these parameters. If Session Type is set to Single-Hop, select Board and Port, that is, select a port on a board that transmits the BFD packets.
Session ID	Example: 5	Displays the ID of the BFD session.
Board	Example: 2-EF8F	Selects the board that transmits BFD packets.
Port	Example: 1(PORT-1)	Selects the port that transmits BFD packets.
Sink Port IP Address	Example: 10.70.12.33	Sets the IP address of the sink port.
Local Identifier	Automatically Assign	Displays the local identifier.
Remote Identifier	Automatically Assign	Displays the remote identifier.
Bound Tunnel	IP Tunnel, GRE Tunnel	Configures the bound object for offload Protection. NOTE: OptiX RTN 910 and OptiX RTN 950 support to configure the bound object.
Admin Status	Up, Down	Configures the administration status. It is recommended to set the parameter to Up. Up: BFD session supported. Down: BFD session not supported. If Admin Status is set to Down, Session Status is displayed only as Down.
Session Status	Up, Down, AdminDown, Init	Displays the BFD session status.
Local Send Interval of Packets	10-1000	Sets the local send interval of packets. It is recommended to set the parameter to 1000. NOTE: In the case of OptiX RTN 910/950, the parameter can be only set to one second.
Local Receive Interval of Packets	10-1000	Sets the local receive interval of packets. It is recommended to set the parameter to 1000.
Local Detection Multiple of Packets	3-10	Sets the BFD packet detection multiples at the local end. It is recommended to set the parameter to 3.
Negotiated Local Send Interval of Packets	Example: 568	Displays the negotiated interval of transmitting packets at the local end.
Negotiated Local Receive Interval of Packets	Example: 568	Displays the negotiated interval of receiving packets at the local end.
Negotiated Detection Time of Packets	Example: 5	Displays the negotiated packet detection time at the local end.
Diagnosis Word	0-9	Indicates the cause of the state change of the latest session in the local BFD system.