bfd (System view)

Function

The bfd command enables Bidirectional Forwarding Detection (BFD) globally and displays the global BFD view.

The undo bfd command disables BFD globally.

By default, BFD is disabled.

Format

bfd

undo bfd

Parameters

None

Views

System view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
bfd	write

Usage Guidelines

Usage Scenario

To use BFD to rapidly detect a link failure, run the bfd command to enable BFD globally.

Prerequisites

A BFD session has been created using any of the following commands:

bfd bind peer-ip
bfd bind peer-ip default-ip
bfd bind peer-ip source-ip auto

Configuration Impact

After the bfd command is run, BFD is enabled globally, and BFD-associated configurations are allowed.

Precautions

BFD must be enabled globally before BFD-associated configurations are performed.

You can run the undo bfd session-name command to delete a specified BFD session and its binding information.

Example

# Enable BFD globally.

<HUAWEI> system-view
[~HUAWEI] bfd
[*HUAWEI-bfd]

# After enables the re-confirmation function, disabled BFD globally.

<HUAWEI> system-view
[~HUAWEI] bfd
[*HUAWEI-bfd] quit
[*HUAWEI] undo bfd
Warning: This operation will delete all BFD sessions. To restore BFD services, reconfigure the BFD sessions. Continue?  [Yes/No]:Yes
Warning: This operation may impact the status of services associated with BFD. Continue?  [Yes/No]:Yes