The value of tmnxMcPathVdoPlcyFCCDentThd specifies the dent
threshold with which the Fast Channel Change (FCC) server will send
unicast data to the client. The value is only applicable if
the value of tmnxMcPathVdoPlcyFCCSvrMode is set to 'dent (2)' or
'hybrid (3)' and tmnxMcPathVdoPlcyChlType is set to 'hd (2)',
'sd (3)', or 'pip (4)'.