Book Image

Software-Defined Networking with OpenFlow - Second Edition

By : SIAMAK AZODOLMOLKY, Oswald Coker
Book Image

Software-Defined Networking with OpenFlow - Second Edition

By: SIAMAK AZODOLMOLKY, Oswald Coker

Overview of this book

OpenFlow paves the way for an open, centrally programmable structure, thereby accelerating the effectiveness of Software-Defined Networking. Software-Defined Networking with OpenFlow, Second Edition takes you through the product cycle and gives you an in-depth description of the components and options that are available at each stage. The aim of this book is to help you implement OpenFlow concepts and improve Software-Defined Networking on your projects. You will begin by learning about building blocks and OpenFlow messages such as controller-to-switch and symmetric and asynchronous messages. Next, this book will take you through OpenFlow controllers and their existing implementations followed by network application development. Key topics include the basic environment setup, the Neutron and Floodlight OpenFlow controller, XORPlus OF13SoftSwitch, enterprise and affordable switches such as the Zodiac FX and HP2920. By the end of this book, you will be able to implement OpenFlow concepts and improve Software-Defined Networking in your projects.

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Table of Contents (17 chapters)
Title Page
Title Page
Credits
Credits
About the Authors
About the Authors
About the Reviewer
About the Reviewer
www.PacktPub.com
www.PacktPub.com
Customer Feedback
Customer Feedback
Preface
Preface
Free Chapter
1
Software-Defined Networks
Software-Defined Networks
Understanding SDN
SDN use cases
NFV
Summary
2
Introducing OpenFlow
Introducing OpenFlow
Activities around SDN/OpenFlow
Building Blocks of an SDN deployment
OpenFlow messages
Northbound interface
Summary
3
Implementing the OpenFlow Switch
Implementing the OpenFlow Switch
OpenFlow reference switch
OpenFlow enabled switches
OpenFlow laboratory with Mininet
Summary
4
The OpenFlow Controllers
The OpenFlow Controllers
Software-Defined Networking controllers
Existing implementations
ODL
Ryu
Installation of a Ryu controller
Running a Ryu application
Special controllers
Summary
5
Setting Up the Environment
Setting Up the Environment
Understanding the OpenFlow laboratory
ODL
SDN Hub starter VM kit
Summary
6
Net App Development
Net App Development
Net App 1 - an Ethernet learning switch
Net App 2 - a simple firewall
Net App 3 - simple forwarding in OpenDaylight
Net App 4 – simple switching hub using Ryu controller
Net App 5 – simple router using Ryu controller
Net App 6 – simple firewall using Ryu controller
Summary
7
Getting a Network Slice
Getting a Network Slice
Network virtualization
FlowVisor
FlowVisor slicing
Summary
8
OpenFlow in Cloud Computing
OpenFlow in Cloud Computing
OpenStack and Neutron
OpenStack Networking architecture
Neutron plugins
Summary
9
Open Source Resources
Open Source Resources
Controllers
Miscellaneous
Summary
10
The Future of SDN
The Future of SDN
Packet forwarding innovations beyond OpenFlow
Protocol-independent forwarding
Optical transport protocol extensions
Summary

Special controllers

In addition to the OpenFlow controllers that we introduced in this chapter, there are also two special-purpose OpenFlow controllers: FlowVisor and RouteFlow. The former acts as a transparent proxy between OpenFlow switches and multiple OpenFlow controllers. It is able to create network slices and can delegate control of each slice to a different OpenFlow controller.

FlowVisor also isolates these slices from each other by enforcing proper policies. RouteFlow, on the other hand, provides virtualized IP routing over OpenFlow-capable hardware. RouteFlow can be considered as a network application on top of OpenFlow controllers. It is composed of an OpenFlow Controller application, an independent server, and a virtual network environment that reproduces the connectivity of a physical infrastructure and runs the IP routing engines.

The routing engines generate the Forwarding Information Base (FIB) into the Linux IP tables according to the configured routing protocols (for example...

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