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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.
Network Driver Registry Settings
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