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Day One: SBR Change of Authorization (CoA) and the MX Series

Juniper CoA solutions can enable a number of network use cases, from automating service provisioning, to credit card authorization portals, to self-service portals for network and subscriber provisioning. Build a MX subscriber management solution along with RADIUS authentication, authorization, accounting, and Change of Authorization (CoA) using Juniper’s Steel-Belted Radius. “Day One: SBR Change of Authorization” is meant for the lab, for a day exploring the basic tenets of software defined networks (SDN) by using the MX Series, Junos, and SBR to create a CoA solution.

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About the Author(s)

John Rolfe has over 30 years of experience in the networking industry. He is presently a consulting system engineer in the Technologies and Solution group at Juniper Networks, focusing on identity and policy management as well as network management systems. Prior to Juniper Networks, he worked in the VOIP industry with session border controllers at NexTone. Prior to that, he spent seven years in the semiconductor industry, primarily in Network Processing silicon with Agere.

Author Q & A

What got you started on this book?

I’ve been working on identity and policy in both wireline and wireless networks for several years. The last 18 months or so there’s been significant interest in using existing infrastructure (RADIUS and BNG’s) to push dynamic policy changes into the network. Everything from WiFi offload portals to basic provisioning systems. That got me started in writing this book.

Who is this book for?

Anyone looking to implement dynamic changes to a subscriber connection. Hopefully it will add some knowledge on how tying a web infrastructure back to the network can be done quite painlessly.

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

That really it isn’t all that difficult to implement, with the right upfront planning. It’s certainly a different world than the Junos CLI and subscriber management, however once the basics are understood, there’s so many applications that can take advantage of this.

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

I hope it gets the creative juices flowing to develop applications that take advantage of the power of the network, from the applications point of view.

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

A good trashy spy novel. But seriously it depends on which areas you feel less comfortable with. Certainly Day One: Dynamic Subscriber Management will broaden the knowledge in subscriber management configurations, but also books on PHP and HTML can never hurt in developing these kind of applications.

What’s your inspiration?

Simple - learning something new. Doing a little bit of PHP, HTML, and working with APIs are a great break from the day job, In an added bonus, it’s actually something a customer wants and appreciates because it solves a problem.

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

Finally getting the web portal to change the subscriber session. Seeing the flow from the web server through the API into SBR and finally into the MX and back again. That’s my favorite piece.