Book Image

Mastering KVM Virtualization

Book Image

Mastering KVM Virtualization

Overview of this book

A robust datacenter is essential for any organization – but you don’t want to waste resources. With KVM you can virtualize your datacenter, transforming a Linux operating system into a powerful hypervisor that allows you to manage multiple OS with minimal fuss. This book doesn’t just show you how to virtualize with KVM – it shows you how to do it well. Written to make you an expert on KVM, you’ll learn to manage the three essential pillars of scalability, performance and security – as well as some useful integrations with cloud services such as OpenStack. From the fundamentals of setting up a standalone KVM virtualization platform, and the best tools to harness it effectively, including virt-manager, and kimchi-project, everything you do is built around making KVM work for you in the real-world, helping you to interact and customize it as you need it. With further guidance on performance optimization for Microsoft Windows and RHEL virtual machines, as well as proven strategies for backup and disaster recovery, you’ll can be confident that your virtualized data center is working for your organization – not hampering it. Finally, the book will empower you to unlock the full potential of cloud through KVM. Migrating your physical machines to the cloud can be challenging, but once you’ve mastered KVM, it’s a little easie.
Table of Contents (22 chapters)
Mastering KVM Virtualization
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Chapter 9. Software-Defined Networking for KVM Virtualization

Everyone is talking about Software-Defined Networking (SDN) these days. It is often referred to as a technology revolution that was much needed for computer networks, especially in the cloud and virtualization world which tends to have a rapid provisioning of network services for virtual machines, multi tenancy support, and improved network visibility. The core concept of SDN is to decouple the control plane from the forwarding plane and enable innovation through network programmability. In this chapter we will be covering the SDN approach in KVM virtualization using the Open vSwitch and supporting tools that includes OpenDaylight SDN controller. You will learn about:

  • OpenvSwitch installation and setup

  • Creating VLANs for KVM virtual machines

  • Applying granular traffic and policy control to KVM VMs

  • Creating overlay networks

  • Port mirroring and SPAN

  • Managing OpenvSwitch using the OpenDaylight SDN Controller