Multi-Area OSPF with Multiple Domains

Multi-Area OSPF with Multiple Domains

Introduction

In this lesson, we will configure a multi-area OSPF topology that includes multiple routing domains. This setup is crucial for larger networks as it allows for efficient routing and management of traffic between different areas. By using Area Border Routers (ABRs), we can effectively manage the flow of routing information between these areas.

Quick Recap

In the previous lesson, we configured OSPF on a basic topology with a single area. Now, we will expand that topology to include multiple areas and routers, specifically focusing on R1, R2, R3, and R4. The new devices and IPs are as follows: