mpls bfd enable

Function

The mpls bfd enable command enables dynamic creation of BFD sessions on the ingress node of an LDP LSP.

The undo mpls bfd enable command disables the dynamic creation of BFD sessions on the ingress node of an LDP LSP.

By default, an ingress cannot dynamically create BFD sessions for monitoring LDP LSPs.

Format

mpls bfd enable

undo mpls bfd enable

Parameters

None

Views

MPLS view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

On an MPLS network, use LDP to dynamically create LSP tunnels. Upon a fault on the link, the convergence is slow. Configure BFD to detect LDP LSP connectivity to speed up convergence.

To dynamically establish a BFD session, run the mpls bfd enable command on the source end of the LDP LSP.

After the mpls bfd enable command is used, no BFD session is set up.

Prerequisites

BFD has been enabled globally using the bfd command.

Example

# Enable the dynamic creation of BFD sessions on the ingress node of an LDP LSP.

<HUAWEI> system-view
[HUAWEI] mpls
[HUAWEI-mpls] mpls bfd enable