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Mastering KVM Virtualization

Mastering KVM Virtualization

4.2 (16)
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Mastering KVM Virtualization

Mastering KVM Virtualization

4.2 (16)

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 (17 chapters)
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16
Index

Configuring Open vSwitch tunnels with VxLan


The following diagram represents two instances running on two separate hosts connected by a VxLan tunnel. Also illustrated are the required supporting physical and virtual components. VTEP interfaces allows us to create Layer 2 network over layer 2.

The example depicted earlier steps through the creation of a VXLaN tunnel between two OVS bridges running on two separate bare metal hosts named KVMhost1 and KVMhost2.

KvmHOST1 host side configuration

We have to first create a virtual tunnel endpoint and then connect it to the virtual tunnel endpoint created on a second host to form the tunnel. The following steps are involved in VTEP creation:

  1. First verify to which OVS bridge the vm1 is connected:

    #virsh domiflist vm1
    Interface  Type     Source   Model     MAC
    -------------------------------------------------------
    vnet0    bridge   vswitch_vlans_portgroup rtl8139   52:54:00:b7:d1:3a
    
  2. Check the configuration of the ovs switch:

     ovs-vsctl show
    6e121fc0-2f05...

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