Day One: Migrating EIGRP to OSPF

Changing the Interior Gateway Protocol (IGP) on a production network might seem like a daunting task. However, good pre-planning and a methodical implementation allows it go smoothly and without incident. This book provides you with the knowledge to make your migration a success. OSPF is the most ubiquitous IGP in use today by enterprise, government, and education networks because it provides the best blend of knowledgeable engineers, equipment interoperability, and networking scale. So migrating from EIGRP to OSPF isn’t a question of why. It’s a question of when.

This book provides a fundamental explanation of the steps required to migrate a network from EIGRP to OSPF. You will be able to recreate each of the required steps in a small network with minimal lab equipment.

Day One: Migrating EIGRP to OSPF helps you to:

  • Understand the fundamental differences between EIGRP and OSPF
  • Use discovery techniques to document routing information and map out the network
  • Evaluate routing policy and its function in the network
  • Verify the proper operation of the IGP
  • Migrate the network IGP from EIGRP to OSPF
  • Add Juniper Networks devices to the existing network

Sample Pages

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About the Author(s)

Jack W. Parks, IV is a Sr. Systems Engineer with Juniper Networks. He is certified in both Juniper Networks and Cisco as JNCIP-M #991 and CCIE R&S #11685. Jack’s industry knowledge spans more than 17 years with 10 years in Service Provider and Enterprise Routing.

Author Q & A

What got you started on this book?

Even though I work for Juniper Networks today, I learned networking on Cisco gear in the late 90’s and I earned my CCIE in 2003. As a customer of both Cisco and Juniper, I migrated a ISP network from EIGRP to OSPF/BGP. My Cisco foundation and real world EIGRP to OSPF migration experience helped me develop the content that you will find in this book.

Who is this book for?

I wrote this book for those engineers who are tired of reading whitepapers about migrating their networks. I wanted to provide a walkthrough of an actual EIGRP to OSPF migration. I’m a hands-on engineer. I like getting on the router CLI and making things happen. If you like to roll up your sleeves and get into the weeds, then this book is for you.

After reading this book, what’s the take away?

I want the readers to become comfortable with the migration process. Changing an IGP is no small task and success will be determined by your attention to detail and a documented process. Sharing the processes that I have used in the past and covering the common migration models should ease the burden of the unknown.

What are you hoping that people will learn from this book?

There is nothing magical or extremely difficult in migrating your network from EIGRP to OSPF. It can be planned, executed and successful. I hope the readers will also use this Day One book as a lab guide to practice a migration - this is the primary reason I focused most of the material on the CLI. The book topology is simple to reconstruct in a small lab but still effective to demonstrate the methods and procedures of a protocol migration. There is no better teacher than experience.

What do you recommend as the next item to read after this book?

I don’t have a specific reading list. I plan on reading the IPv6 Day One Books as well as Network Mergers and Migrations. Like everyone else, I try to stay ahead of the learning curve on the new technologies that are on the horizon.

What’s your inspiration?

My professional interest is more focused on building and innovating networks. I’m not a good day-to-day maintenance engineer. I’m always thinking about the next evolution of the network and how to gain a business edge. Proprietary and inflexible solutions prevent innovation and change. The proprietary nature of EIGRP is one reason I wrote this book. Migrating the network away from EIGRP removes a major roadblock to unlocking advanced features on any network like MPLS.

What’s your favorite bit/part in the book?

I enjoyed the actual migration process shown in the book. I enjoy building networks and taking them to a new level. I hope this helps you take your network to a new level.