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Performance Comparison of Virtual Network Devices


Latest Revision:
Mar 11, 2008



The networking performance of a virtual machine is greatly influenced by the choice of virtual network devices in the virtual machine and the physical devices configured on the host machine. ESX Server 3.5 supports multiple virtual network devices (vlance, e1000, vmxnet), each with its own usability advantages and performance benefits. It is clear that vlance is not the best choice for high-performance workloads. However, many users are still uncertain about the performance differences between e1000 and vmxnet virtual network devices.

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