OSPF Underlay and LDP

Introduction

In this lesson, we will configure Open Shortest Path First (OSPF) as the Interior Gateway Protocol (IGP) underlay for our MPLS VPN. We will also enable Label Distribution Protocol (LDP) to facilitate the distribution of labels necessary for MPLS operations. This configuration is crucial for ensuring efficient routing and label management in a modern network environment.

Topology & Device Table

                    +------------------+
                    |    ISP-2-ASBR    |
                    |  E0/1 200.1.1.9  |
                    +--------+---------+
                             |
                             |
                             |
                    +--------+---------+
                    |    BR-5-ASBR-1   |
                    |  E0/0 200.1.1.10  |
                    |  E0/1 192.168.50.1|
                    +--------+---------+
                             |
                             |
                             |
                    +--------+---------+
                    | BR-5-Internal-R1 |
                    |  E0/0 192.168.50.2|
                    +------------------+