CoNDIS WAN Is Less Complex (NDIS 5.1)
Note NDIS 5. x has been deprecated and is superseded by NDIS 6. x. For new NDIS driver development, see Network Drivers Starting with Windows Vista. For information about porting NDIS 5. x drivers to NDIS 6. x, see Porting NDIS 5.x Drivers to NDIS 6.0.
CoNDIS defines objects that correspond to each of the logical entities that are involved in a connection. These entities include address families (AFs), virtual connections (VCs), service access points (SAPs), and parties.
In the CoNDIS environment, the system handles many of the complex TAPI requirements. Therefore, a CoNDIS WAN miniport driver or MCM does not have to handle as many TAPI OIDs as an NDIS WAN miniport driver. In addition, the CoNDIS WAN miniport driver or MCM is not required to handle the following status indications: NDIS_STATUS_TAPI_INDICATION, NDIS_STATUS_WAN_LINE_UP, and NDIS_STATUS_WAN_LINE_DOWN.
The separation of the call manager and miniport driver functions enables the implementation of two simple drivers. The simplified drivers should be easier to maintain and debug than one large and complex driver.