pim bfd enable

Function

The pim bfd enable command enables PIM BFD on an interface.

The undo pim bfd enable command disables PIM BFD on an interface.

By default, PIM BFD is not enabled on an interface.

Format

pim bfd enable

undo pim bfd enable

Parameters

None

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

This command enables PIM BFD on an interface to quickly detect link failures on the interface.

Prerequisites

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

Run the pim sm command on the interface to enable PIM-SM. You can run the undo pim sm command to disable PIM BFD on the interface.

Precautions

This command is valid for only PIM-SM.

PIM BFD depends on the BFD protocol. If global BFD is not enabled using the bfd command, PIM BFD sessions can still be set up but the session state is BFD global disable.

Example

# Enable PIM BFD on VLANIF100.

<HUAWEI> system-view
[HUAWEI] bfd
[HUAWEI-bfd] quit
[HUAWEI] multicast routing-enable
[HUAWEI] interface vlanif 100
[HUAWEI-Vlanif100] pim sm
[HUAWEI-Vlanif100] pim bfd enable

# Enable PIM BFD 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