Microsoft Hyper-V Virtual Switch
The Hyper-V virtual switch (vSwitch) in Windows Server 2012 introduces a number of capabilities that are requested by customers for tenant isolation, traffic shaping, protection against malicious virtual machines, and easier troubleshooting of issues. This guide focuses on the improvements in open extensibility and manageability for non-Microsoft extensions. Non-Microsoft extensions can be written to emulate the full capabilities of hardware-based switches and support more complex virtual environments and solutions.
The Hyper-V vSwitch is a layer 2 virtual network switch that provides programmatically managed and extensible capabilities to connect virtual machines to the physical network. vSwitch provides policy enforcement for security, isolation, and service levels. With support for Network Device Interface Specification (NDIS) filter drivers and Windows Filtering Platform (WFP) callout drivers, the Hyper-V vSwitch allows for non-Microsoft extensible plug-ins that can provide enhanced networking and security capabilities.
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