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Software-Defined Networking (SDN) with OpenStack

You're reading from   Software-Defined Networking (SDN) with OpenStack Leverage the best SDN technologies for your OpenStack-based cloud infrastructure

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Product type Paperback
Published in Oct 2016
Publisher
ISBN-13 9781786465993
Length 216 pages
Edition 1st Edition
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Authors (2):
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Sriram Subramanian Sriram Subramanian
Author Profile Icon Sriram Subramanian
Sriram Subramanian
Sreenivas Voruganti Sreenivas Voruganti
Author Profile Icon Sreenivas Voruganti
Sreenivas Voruganti
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Toc

Table of Contents (11) Chapters Close

Preface 1. OpenStack Networking in a Nutshell FREE CHAPTER 2. Introduction to Software-Defined Networking 3. SDN Protocols 4. SDN Networking with Open vSwitch 5. Getting Started with OpenDaylight 6. Using OpenDaylight with OpenStack 7. Getting Started with OpenContrail 8. OpenContrail Networking with OpenStack 9. Open Network Operating System (ONOS) 10. OVN and Open vSwitch Enhancements

ODL and OpenStack


By now, you should have a fair idea about how ODL can manage virtual switches especially Open vSwitch. Now let's take a brief look at how ODL and OpenStack work together to provide powerful SDN capabilities for cloud operators.

OVS is the most popular virtual switch used in OpenStack-based clouds. OVS is used inside OpenStack compute nodes to provide virtual network connectivity to VM instances. However, cloud infrastructure is highly elastic in nature, it can be scaled up or down on demand. This means that the step of associating an OVS to ODL cannot be done manually. It needs to be automated.

In addition, in OpenStack-based clouds, different tenants share the same OVS virtual switch but their data traffic needs to be isolated. One of the main drivers for isolation is that different tenants may be using overlapping IP addresses in their network. This multi-tenancy requirement makes it harder to configure each OVS instance manually. Therefore, all the operations on OVS must...

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