Book Image

Learning VMware vSphere

By : Rebecca Fitzhugh, Abhilash G B
Book Image

Learning VMware vSphere

By: Rebecca Fitzhugh, Abhilash G B

Overview of this book

Computer virtualization is a method to enable the running of multiple application workloads on a machine to achieve efficient utilization and reduce the number of physical machines in a data center. This has now become the foundation of many modern day data centers. What began as a technology to virtualize x86 architecture has now grown beyond the limits of a server’s hardware and into the realm of storage and network virtualization. VMware is currently the market leader in developing data center virtualization solutions. This book goes into the details of designing and implementing VMware solutions that form the foundation of a VMware infrastructure. The book begins by introducing you to the concepts of server virtualization followed by the architecture of VMware’s hypervisor – ESXi and then by its installation and configuration. You then learn what is required to manage a vSphere environment and configure advanced management capabilities of vCenter. Next you are taken through topics on vSphere Networking, Storage, ESXi Clustering, Resource Management and Virtual Machine Management. You will then be introduced to SSL Certificate Management and its use in a vSphere environment. Finally, you will learn about the lifecycle management of a vSphere environment by effectively monitoring, patching and upgrading vSphere components using Update Manager. By the end of the book, you will know how to use VMware’s vSphere suite of components to lay the foundation of a modern day virtual infrastructure.
Table of Contents (18 chapters)
Learning VMware vSphere
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface

The VMware OUI MAC addresses


Every virtual machine and vmkernel interface that you create on an ESXi host will need a layer-2 identity to interface with the network. Much like in the physical world, MAC addresses provide this unique identity to all the virtual machines or interfaces that connect to a virtual switch. Every physical network interface will have a burned-in 48-bit MAC address whose numbering is organizationally unique. This is because every vendor that makes the card will have a set of Organizationally Unique Identifiers (OUI) assigned to them by the IEEE (Institute of Electrical and Electronics Engineers). In fact, the vendor purchases OUIs from IEEE's Registration Authority. VMware also has a set of OUIs assigned to it, and those are 00:50:56 and 00:0C:29. Although both OUI are used differently, they can be assigned to virtual machine NICs and vmkernel interfaces. VMware also supports the use of Locally Administered Addresses (LAA) using the prefix-based and range-based allocation...