rip bfd

Function

The rip bfd command sets BFD session parameters on the specified interface.

The undo rip bfd command restores BFD session parameters set on the specified interface.

By default, the minimum intervals for receiving and sending BFD packets are 1000 ms and the detection time multiplier is 3.

Product	Support
S5720-EI, S5720-HI, S5720I-SI, S5720S-SI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5730-HI, S5730S-EI, S5730-SI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6720S-SI, S6720-SI, S6730-H, S6730S-H, S6730-S, and S6730S-S	Supported
S2720-EI, S5720-LI, S5735-L, S5735S-L, S5735S-L-M, S5720S-LI, S6720-LI, and S6720S-LI	Not supported

Format

rip bfd { min-rx-interval min-receive-value | min-tx-interval min-transmit-value | detect-multiplier detect-multiplier-value } ^*

undo rip bfd { min-rx-interval [ min-receive-value ] | min-tx-interval [ min-transmit-value ] | detect-multiplier [ detect-multiplier-value ] } ^*

Parameters

Parameter	Description	Value
min-rx-interval min-receive-value	Specifies the minimum interval at which BFD packets are received from the remote device.	The value is an integer that ranges from 100 to 1000, in milliseconds. After the set service-mode enhanced command is configured on the S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, and S6720-HI, the value ranges from 3 to 1000. After the set service-mode enhanced-bfd command is configured on the S5732-H, S6730-H, S6730S-H, S6730-S, and S6730S-S, the value ranges from 3 to 1000.
min-tx-interval min-transmit-value	Specifies the minimum interval at which BFD packets are sent to the remote device.	The value is an integer that ranges from 100 to 1000, in milliseconds. After the set service-mode enhanced command is configured on the S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, and S6720-HI, the value ranges from 3 to 1000. After the set service-mode enhanced-bfd command is configured on the S5732-H, S6730-H, S6730S-H, S6730-S, and S6730S-S, the value ranges from 3 to 1000.
detect-multiplier detect-multiplier-value	Specifies the local detection multiplier.	The value is an integer ranging from 3 to 50.

Views

Interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

The min-receive-value value is obtained after the local min-rx-interval value and a neighbor's min-tx-interval value are negotiated. For detailed negotiation policies, see bfd all-interfaces. If the switch does not receive BFD packets from the neighbor at the interval of min-receive-value x detect-multiplier-value, the neighbor will go Down.

Prerequisites

Enable BFD globally and run the rip bfd enable command before establishing a BFD session.

Precautions

BFD session parameters configured in a RIP process take effect only after BFD is enabled on the interface.

The BFD priority configured on an interface is higher than the BFD priority configured in a RIP process. If BFD session parameters are configured on an interface, establish a BFD session based on the configured parameters.

Example

# Enable BFD on VLANIF100 and set the minimum sending interval to 600 ms and local detection multiplier to 4.

<HUAWEI> system-view

[HUAWEI] interface vlanif 100

[HUAWEI-Vlanif100] rip bfd enable

[HUAWEI-Vlanif100] rip bfd min-tx-interval 600 detect-multiplier 4

# Enable BFD on GE0/0/1 and set the minimum sending interval to 600 ms and local detection multiplier to 4.

<HUAWEI> system-view
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] undo portswitch
[HUAWEI-GigabitEthernet0/0/1] rip bfd enable
[HUAWEI-GigabitEthernet0/0/1] rip bfd min-tx-interval 600 detect-multiplier 4