 | Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |
The Label Distribution Protocol (LDP) is a signaling protocol that runs on a device configured for MPLS support. The LDP configuration is added to the existing interior gateway protocol (IGP) configuration and included in the MPLS configuration. To configure a network to use LDP for LSP establishment, you first enable MPLS on all transit interfaces in the MPLS network and then enable LDP sessions on the interfaces.
The successful configuration of both MPLS and LDP initiates the exchange of TCP packets across the LDP interfaces. The packets establish TCP-based LDP sessions for the exchange of MPLS information within the network. Enabling both MPLS and LDP on the appropriate interfaces is sufficient to establish LSPs.
| Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |