NetworkWorld recently posted a sneak peek of a new Cisco Press book, Network Virtualization by Victor Moreno and Kumar Reddy.

Here's the Cisco Press blurb:

Network Virtualization provides design guidance for virtualized enterprise networks and arms network architects with the background necessary to make sound technological choices in the face of different business requirements. As a means of introduction, Network Virtualization lays out the fundamentals of enterprise network design. The book builds upon these fundamental principles to introduce the different virtualization methods as the logical evolution of the enterprise network architecture. Detailed descriptions of the technology, design principles, network configurations, and real-world case studies are provided throughout the book.

Go to free excerpt: Chapter 4: A Virtualization Technologies Primer: Theory.