3.1.1 Abstract Data Model

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This section describes a conceptual model of possible data organization that an implementation maintains to participate in this protocol. The described organization is provided to facilitate the explanation of how the protocol behaves. This specification does not mandate that implementations adhere to this model as long as their external behavior is consistent with that described in this specification.

dpnidSender: The 32-bit DPNID value identifying the new Path Test-sending player, in little-endian byte order.

dpnidTarget: The 32-bit DPNID value identifying the existing player, in little-endian byte order.

guidApplication: The 128-bit GUID value identifying the DirectPlay 8 Protocol: Core and Service Providers application.

guidInstance:  The 128-bit GUID value identifying the particular DirectPlay 8 Protocol: Core and Service Providers game session instance.

ullKey: The 64-bit identification value used to correlate PATH_TEST messages and DirectPlay 8 Protocol: Core and Service Providers connect attempts.