AsyncMac Registry Settings (Windows CE 5.0)

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The NDISWAN implementation in Windows 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

Network Driver Registry Settings

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