mpls ldp enable

Use mpls ldp enable to enable IPv4 LDP on an interface.

Use undo mpls ldp enable to disable IPv4 LDP on an interface.

Syntax

mpls ldp enable

undo mpls ldp enable

Default

IPv4 LDP is disabled on an interface.

Views

Interface view

Predefined user roles

network-admin

Usage guidelines

An up interface enabled with IPv4 LDP and MPLS sends IPv4 Link Hellos for neighbor discovery.

On an LDP over MPLS TE network, an up MPLS TE tunnel interface enabled with LDP sends Targeted Hellos to the tunnel destination. The interface establishes a session to the tunnel peer to set up an LDP LSP over the MPLS TE tunnel.

Before you enable IPv4 LDP on an interface, use the mpls ldp command in system view to enable LDP globally. If the interface is bound to a VPN instance, you must also use the vpn-instance command to enable LDP for the VPN instance.

Disabling LDP on an interface terminates all LDP sessions on the interface, and removes all LSPs established through the sessions.

Examples

# Enable IPv4 LDP on VLAN-interface 2.

<Sysname> system-view
[Sysname] mpls ldp
[Sysname-ldp] quit
[Sysname] interface vlan-interface 2
[Sysname-Vlan-interface2] mpls ldp enable

Related commands

display mpls ldp interface

mpls enable

mpls ldp