3.2.6 Timer Events

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If a TDS client implements the Connection Timer and the timer times out, then the TDS client MUST close the underlying connection, indicate the error to the upper layer, and enter the "Final State" state.

If a TDS client implements the Client Request Timer and the timer times out, then the TDS client MUST send an Attention message to the server and enter the "Sent Attention" state.

If a TDS client implements the Cancel Timer and the timer times out, then the TDS client MUST close the underlying connection, indicate the error to the upper layer, and enter the "Final State" state.