bfd all-interfaces enable (IS-IS)

Function

The bfd all-interfaces enable command enables BFD in the IS-IS process.

The undo bfd all-interfaces enable command disables BFD in the IS-IS process.

By default, BFD is not enabled in an IS-IS process.

Format

bfd all-interfaces enable

undo bfd all-interfaces enable

Parameters

None

Views

IS-IS view

Default Level

2: Configuration level

Usage Guidelines

If global BFD is not enabled, you can configure IS-IS BFD but cannot set up the BFD session. Before establishing BFD sessions, you need to enable BFD on the two ends.

When BFD is enabled in the process by using the bfd all-interfaces enable command, the interface does not set up a BFD session in the following cases:

The isis bfd block command is used on the interface. The command suppresses the BFD capability of the interface. To set up a session on the interface, run the undo isis bfd block command.
When the isis bfd static command is used on the interface, the interface does not set up the BFD session. To set up a session on the interface, run the undo isis bfd static command.

The BFD priority of the interface is higher than the BFD priority of the process. If BFD of the interface is enabled, a BFD session is set up based on the BFD parameters on the interface.

Example

# Enable BFD of an IS-IS process and set the minimum interval for sending BFD packets to 300 ms.

<sysname> system-view

[sysname] isis

[sysname-isis-1] bfd all-interfaces enable

[sysname-isis-1] bfd all-interfaces min-tx-interval 300