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AsyncMac Registry Settings (Windows Embedded CE 6.0)

1/6/2010

The NDISWAN implementation in Windows Embedded CE includes an HKEY_LOCAL_MACHINE\Comm\AsyncMac1\Parms registry key. This key contains a set of subkeys that allow you to configure values that are specific to the WAN miniport driver, such as the maximum packet size a miniport driver will receive from a link.

The following table describes the registry settings for HKEY_LOCAL_MACHINE\Comm\AsyncMac1\Parms.

Registry key Type Default Description

ReceiveBufferSize

DWORD

2000

Specifies the total size, in bytes, of the receive buffer for a driver that supports internal buffering.

MaxFrameSize

DWORD

1500

Specifies the maximum frame size the driver can ship and receive not including the driver's own framing overhead.

MaxSendFrameSize

DWORD

1500

Specifies the largest buffer size a WAN miniport driver will receive from this link.

MaxReceiveFrameSize

DWORD

1500

Specifies the largest packet, not including the driver's padding that the driver will accept from the network.

Note

The value for the MaxTransmit, MaxSendFrameSize, and MaxRecvFrameSize parameters defaults to 1500 unless a different value has been specified in the registry.

See Also

Concepts

Network Driver Registry Settings