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Learning OpenDaylight

You're reading from Learning OpenDaylight A gateway to SDN (Software-Defined Networking) and NFV (Network Functions Virtualization) ecosystem

Product type Paperback

Published in May 2017

Publisher Packt

ISBN-13 9781782174523

Length 336 pages

Edition 1st Edition

Tools

OpenDaylight

Concepts

Cloud Computing

Author (1):

Toghraee

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Table of Contents (18) Chapters

Title Page

Credits

About the Author

Acknowledgments

About the Reviewers

www.PacktPub.com

Customer Feedback

Dedication

Preface

1. Introduction to SDN - Transformation from Legacy to SDN FREE CHAPTER

2. Overview of OpenDaylight

3. OpenDaylight Installation and Deployment

4. Building a Virtual SDN Test Lab with Virtual Switches

5. Basic Networking with OpenDaylight

6. Overview of OpenDaylight Applications

7. Building SDN Applications for OpenDaylight

8. Network Function Virtualization

9. Building a Software-Driven Data Center with OpenDaylight

Viewing the flow mappings

Mininet allows you to use the dpctl command to communicate with the virtual switch and get the status of the flows.

The basic command to check the flows is dpctl dump-flows:

The preceding output shows the current flow table in both s1 and s2 virtual switches.

Are you looking for the MAC addresses or IP addresses of the source and destination in the preceding screenshot? For sure, you are! But remember that this is the output you receive after running the pingall example. In the pingall example, OpenDaylight has created a flow entry in switches to simply send all packets from port 1 to port 2 on each switch and vice versa.

If OpenDaylight configures a specific flow with an IP address or MAC address, then you will be able to see more details in your flow table.

Try running Mininet with more hosts and different topologies for practice; capture the packets and check the flow table of the switches. This will help you get friendlier with OpenDaylight and OpenFlow.

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Authors (1)

Toghraee

Toghraee

Reza Toghraee, CCIE 22518, is a network and security expert. For the last 15 years, he has designed and deployed many large campus and datacenter projects, leveraging his skills in networking, security, virtualization, compute, and storage. He has worked with all networking vendors in the past. In 2013, he started exploring the hardware and software of Ethernet switches and was inspired to build an AVB (Audio Video Bridging) Ethernet switch by designing hardware and software protocols. Soon he discovered SDN and early SDN controllers and dedicated his time to promoting and contributing to SDN and the OpenNetworking community. He works as a freelance consultant for SDN, NFV, network automation, network virtualization, and cloud projects. He can be reached via his email [email protected]

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