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DevOps for Networking

You're reading from   DevOps for Networking Bringing Network Automation into DevOps culture

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Product type Paperback
Published in Oct 2016
Publisher
ISBN-13 9781786464859
Length 364 pages
Edition 1st Edition
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Author (1):
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Steven Armstrong Steven Armstrong
Author Profile Icon Steven Armstrong
Steven Armstrong
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Table of Contents (13) Chapters Close

Preface 1. The Impact of Cloud on Networking 2. The Emergence of Software-defined Networking FREE CHAPTER 3. Bringing DevOps to Network Operations 4. Configuring Network Devices Using Ansible 5. Orchestrating Load Balancers Using Ansible 6. Orchestrating SDN Controllers Using Ansible 7. Using Continuous Integration Builds for Network Configuration 8. Testing Network Changes 9. Using Continuous Delivery Pipelines to Deploy Network Changes 10. The Impact of Containers on Networking 11. Securing the Network Index

Arguments against software-defined networking


With the emergence of public clouds such as AWS, Microsoft Azure, and Google Cloud, networking is now being treated more like a commodity and has moved from silicon to software. This has allowed developers the ability to mutate the network to best serve the applications, rather than retrofit applications into an aging network, that is probably not optimized for modern microservice applications.

It would therefore seem nonsensical if any business would want to treat their internal data center networking any differently. However, like all new ideas, before acceptance and adoption comes fear and uncertainty, inherently co-related with the new or different ways of working.

Common arguments against using a clos Leaf-Spine architecture and SDN controllers center around one common theme, that it requires change and change is hard. We then harp back to the mythical 8th layer of the OSI model, and that is the User layer:

The network operators have to feel...

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