Introduction to NDIS 6.40

This section introduces Network Driver Interface Specification (NDIS) 6.40 and describes its major design additions. NDIS 6.40 is included in the Windows 8.1 and Windows Server 2012 R2 and later operating systems.

Feature Updates

Windows 8.1 and Windows Server 2012 R2 introduce minor updates to the following features:


NDKPI 1.2 adds the following new elements to the NDKPI DDI:

Native 802.11 Wireless LAN

IEEE 802.11ac very-high throughput (VHT) PHY is now supported. The following DDI elements have been updated:

Sample and Documentation Updates

The Hyper-V Extensible Switch forwarding extension sample has been updated to implement Hybrid Forwarding.

The following documentation sections have been added or significantly expanded:

The NetDMA interface is not supported in Windows 8 and Windows Server 2012 and later. The documentation has now been updated to reflect this.

This section includes the following topics: