Enabling the LDP Multi-Instance

This section describes how to configure the LDP multi-instance. Before you configure the LDP multi-instance, enable LDP for the specified VPN instance on each node.

Context

To configure the transport address for an LDP instance, you must use the IP address of the interfaces that are bound to the same VPN instance.

In LDP multiple instances, you can use the interface address to establish a session.

Perform the following steps on each LSR in an MPLS domain:

Procedure

Run system-view
The system view is displayed.
Run mpls ldp vpn-instance vpn-instance-name
LDP for the specified VPN instance is enabled, and the MPLS LDP VPN instance view is displayed.

Note the following:
- Configurations in the MPLS LDP VPN instance view only take effect on LDP-enabled interfaces that are bound to the same VPN instance.
- Configurations in the MPLS LDP view do not take effect on LDP-enabled interfaces that are bound to the VPN instance.
(Optional) Run lsr-id lsr-id
An LSR ID is configured for the LDP VPN instance.

In most applications, use the default LDP LSR ID. In some networking schemes that VPN instances are used, for example, BGP or MPLS VPN, configure an LSR ID separately for the LDP multi-instance to ensure normal establishment of a TCP connection, if the address space of the VPN overlaps that of the public network.