pim bfd

Function

The pim bfd command adjusts the PIM BFD parameters on an interface.

The undo pim bfd command restores the default values of PIM BFD parameters.

By default, the minimum interval for transmitting BFD packets and minimum interval for receiving BFD packets are 1000 ms, and the BFD detection multiplier is 3.

Format

pim bfd { min-tx-interval tx-value | min-rx-interval rx-value | detect-multiplier multiplier-value } ^*

undo pim bfd { min-tx-interval | min-rx-interval | detect-multiplier } ^*

undo pim bfd { min-tx-interval tx-value | min-rx-interval rx-value | detect-multiplier multiplier-value } ^*

Parameters

Parameter	Description	Value
min-tx-interval tx-value	Specifies the minimum interval for transmitting BFD packets.	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-rx-interval rx-value	Specifies the minimum interval for receiving BFD packets.	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 multiplier-value	Specifies the BFD detection multiplier.	The value is an integer that ranges from 3 to 50. The default value is 3.

Views

GE interface view, XGE interface view, MultiGE interface view, 25GE interface view, 40GE interface view, Eth-Trunk interface view, 100GE interface view, GE sub-interface view, XGE sub-interface view, MultiGE sub-interface view, 25GE sub-interface view, 40GE sub-interface view, 100GE sub-interface view, Eth-Trunk sub-interface view, VLANIF interface view, loopback interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After PIM BFD is enabled, you may need to run the pim bfd command to adjust PIM BFD parameters to adapt to the state of the link. This command can set the minimum interval for sending BFD packets, minimum interval for receiving PIM BFD packets, and local detection multiplier.

In application, you can continuously configure one or more parameters. If some parameters are configured, other parameters that are not configured reserve the existing configurations.

Prerequisites

IP multicast routing has been enabled using the multicast routing-enable command.

Precautions

This command is valid only for PIM-SM.

Before setting PIM BFD parameters, run the pim bfd enable command to enable PIM BFD. Otherwise, the configured parameters do not take effect.

The minimum values of tx-value and rx-value vary with products.

Example

# Adjust the minimum interval for transmitting BFD packets on VLANIF 10.

<HUAWEI> system-view
[HUAWEI] bfd
[HUAWEI-bfd] quit
[HUAWEI] multicast routing-enable
[HUAWEI] interface vlanif 10
[HUAWEI-Vlanif10] pim sm
[HUAWEI-Vlanif10] pim bfd enable
[HUAWEI-Vlanif10] pim bfd min-tx-interval 100

# Adjust the minimum interval for transmitting BFD packets on GE0/0/1.

<HUAWEI> system-view
[HUAWEI] bfd
[HUAWEI-bfd] quit
[HUAWEI] multicast routing-enable
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] undo portswitch
[HUAWEI-GigabitEthernet0/0/1] pim sm
[HUAWEI-GigabitEthernet0/0/1] pim bfd enable
[HUAWEI-GigabitEthernet0/0/1] pim bfd min-tx-interval 100