Cisco Nexus 7000 Series Virtualization Architecure

Short Description
The costs and inefficiencies of maintaining increasingly large IT infrastructures have led to major infrastructure consolidation initiatives. Virtualization allows IT departments to maximize existing resources by sharing a physical device among several logical functions, rather than devoting the entire device to a single function and underutilizing the capacity of that physical device.

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Content
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Demand for Virtualization
The capacity and power of computing, storage, and networking infrastructure resources have increased significantly in recent years. At the same time, the demand for these resources continues to grow. These two factors have led to proliferation of distributed infrastructure resources while creating a surplus of underutilized infrastructure capacity distributed throughout the network.
As demand continues to increase, the number of underutilized systems continues to grow, resulting in extremely large, complex, and costly infrastructure and high capital expenditures (CapEx) and operating expenses (OpEx). Additionally, costs associated with power, cooling, and space increase as infrastructure grows.
The capability to consolidate multiple functions onto fewer devices leads to a simplified architecture, which provides operating efficiencies by reducing the number of tasks to be processed as well as the number of elements to be maintained without sacrificing efficiency, utilization, and scalability. For virtualization of the network infrastructure, VDCs help consolidate multiple networks onto a single physical infrastructure while maintaining operational independence between the consolidated networks
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