Network share resources and reduce costs while providing secure network services to diverse user communities Present business drivers for network virtualization and the major challenges facing network designers today Shows how to use virtualization designs with existing applications, such as VoIP and network services, such as quality of service and multicast Provides design alternatives for real-world deployment scenarios are different, with examples -configuration examples and case studies of companies today have multiple user groups with special needs. Because of the increasing number of groups, making them separate and secure is a challenge for IT departments, especially with the advent of wireless networks, mobility needs of users across the enterprise, and the need for cross group collaboration with resource sharing on a per project basis requirements. Network Virtualization provides design guidance virtualization companies to network and arms network architects with the necessary background to make sound technological choices in dealing with different businesses. detailed descriptions of technology, design principles, network configurations, and real-world case studies are provided throughout this book, helps readers develop a pragmatic understanding of virtualized enterprise network architectures.