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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

OpenContrail architecture


The architecture of OpenContrail can be broken up into two main components:

  • vRouter

  • Controller

Let us examine each of these components in detail.

vRouter

The vRouter is the main component in the forwarding plane of OpenContrail. The vRouter runs on the Compute Nodes and acts as a virtual switch as well as a virtual router. It forwards the traffic to and from the virtual machines running on the Compute Node. Since OpenContrail is based on an overlay network architecture, the vRouter acts as the endpoint for overlay networks.

The vRouter is analogous to the Open vSwitch (OVS) when compared with an OpenDaylight-based SDN architecture. While OVS supports protocols like OpenFlow to program the forwarding plane, the vRouter uses XMPP as the control plane protocol. XMPP stands for Extensible Messaging and Presence Protocol. XMPP is an interesting choice for the control plane protocol. XMPP was designed as a protocol for detecting the presence and exchanging messages for real...

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