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KVM Virtualization Cookbook

You're reading from   KVM Virtualization Cookbook Learn how to use KVM effectively in production

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Product type Paperback
Published in Jun 2017
Publisher Packt
ISBN-13 9781788294676
Length 340 pages
Edition 1st Edition
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Author (1):
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Konstantin Ivanov Konstantin Ivanov
Author Profile Icon Konstantin Ivanov
Konstantin Ivanov
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Table of Contents (9) Chapters Close

Preface 1. Getting Started with QEMU and KVM FREE CHAPTER 2. Using libvirt to Manage KVM 3. KVM Networking with libvirt 4. Migrating KVM Instances 5. Monitoring and Backup of KVM Virtual Machines 6. Deploying KVM Instances with OpenStack 7. Using Python to Build and Manage KVM Instances 8. Kernel Tuning for KVM Performance

The Linux bridge

The Linux bridge is a software layer 2 device that provides some of the functionality of a physical bridge device. It can forward frames between KVM guests, the host OS, and virtual machines running on other servers, or networks. The Linux bridge consists of two components--a userspace administration tool that we are going to use in this recipe and a kernel module that performs all the work of connecting multiple Ethernet segments together. Each software bridge we create can have a number of ports attached to it, where network traffic is forwarded to and from. When creating KVM instances, we can attach the virtual interfaces that are associated with them to the bridge, which is similar to plugging a network cable from a physical server's NIC to a bridge/switch device. Being a layer 2 device, the Linux bridge works with MAC addresses and maintains a kernel...

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