/// Making a Case for Network Virtualization
Image copyright Johannes Kornelius At the beginning of this century, server virtualization burst onto the IT scene and changed the way modern IT organizations think about server hardware. The basic concept behind server virtualization is that multiple “virtual” servers can be run on a single physical server. This consolidation of servers resulted in much higher utilization of physical servers, which dramatically reduced the capital expenditure (capex) costs required to provide IT services. Using fewer physical servers also lowered power, cooling, and datacenter space requirements. Other indirect benefits were increased agility, since the IT department could provision a server in minutes or hours versus the weeks and months it used to take to procure, setup, and turn on new physical servers. By all accounts, server virtualization adoption has been extremely successful.
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Making a Case for Network Virtualization
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