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Hyper-V Extensible Switch Components

Last Updated: 9/2/2016

Starting with Windows Server 2012, the Hyper-V extensible switch supports an interface that allows NDIS filter drivers (known as Hyper-V extensible switch extensions) to bind within the extensible switch driver stack. This allows extensions to monitor, modify, and forward packets to extensible switch ports. This also allows extensions to drop, redirect, or originate packets to ports that are used by the Hyper-V partitions.

Extensions can be provisioned with policies that apply to packet traffic over an individual extensible switch port or the switch itself. This allows the extension to allow a packet to be sent or deny a packet from being sent.

The following figure shows the components of the extensible switch interface for NDIS 6.40 (Windows Server 2012 R2) and later.

diagram illustrating hyper\-v extensible switch architecture for ndis 6.40 and later

The following figure shows the components of the extensible switch interface for NDIS 6.30 (Windows Server 2012).

diagram illustrating the synthetic device data paths with sr-iov

This section includes the following topics that describe the extensible switch components:

Hyper-V Extensible Switch Extensions

Hyper-V Extensible Switch Ports

Hyper-V Extensible Switch Network Adapters

Hyper-V Extensible Switch Port and Network Adapter States

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