Network Implications of Server Virtualization in the Data Center
By Cisco Systems
Published July 2007; Posted November 2007
Virtual machine environments place unique demands on network infrastructure. Although virtual machines can simplify the physical server infrastructure, they can add complexity to the LAN and SAN fabrics within the data center. The effect on the LAN and SAN in terms of resources consumed is amplified because each virtual machine is identified by a unique MAC, IP, and WWN address.
Cisco Catalyst switches support functions that delivers predictable application performance, security, and availability for dense virtual machine environments, as well as tools that simplify management and operation of the virtual machine environment.
In the SAN environment, the Cisco MDS 9000 family provides technologies such as VSANs and IVR to enable integration of the SAN fabric and virtual machine environments in a way that preserves the functional objectives of the virtual machine strategy while maintaining the segmentation necessary for proper information security and regulatory compliance.
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