Cisco Networking Simplified, Second Edition

Part IX. Virtualized Networks

Now that you know how everything in a network goes together, it’s time to break it all apart again. It sounds a bit crazy, but the truth is that little is simple about today’s networks. They are complex, and they are a big investment. New resources are added or required on almost a weekly or even daily basis. To better handle this never-ending stream of network additions, many IT groups have begun to virtualize parts of the network, including data centers, infrastructure, and even applications. The idea behind virtualization is to pool network resources to reduce costs, size, and expense while making it appear as if ...