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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

Neutron Dragonflow


Dragonflow is a distributed SDN controller implementation for OpenStack Neutron. Neutron Dragonflow adopts a distributed approach to mitigate the scaling issues outlined in the reference Neutron implementation for certain deployment scenarios. Similar to DVR, the load is distributed to the compute node executing local controller. However, unlike DVR, Dragonflow follows agentless design and SDN principles to implement Neutron APIs.

Figure 6: Neutron Dragonflow components

DragonFlow has a distributed database layer with database plugins for OVSDB, Cassandra, and so on. The new database can easily be plugged into the framework. The controllers sync logical network topology databases and policy updates. The Dragonflow controllers at each compute node map this policy data and translates it into the OpenFlow pipeline into OVS.

Functionality supported by agents in reference Neutron implementation is implemented as an App in the Dragonflow controller. The controller programs the...

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