3.2.4 Higher-Layer Triggered Events
The SQL Server Resolution Protocol client implementation MUST support the following event from the higher layer:
Send client request to server or servers. The type of request dictates if the message is sent to a specific machine or broadcast/multicast to the network. The higher layer must have already created a UDP socket prior to triggering the SQL Server Resolution Protocol client to send a request message. After the message is sent, the timer MUST be started.
The higher layer is responsible for closing the UDP socket after the response is received or a time-out situation has occurred.