There is provided a transmission apparatus including at least one memory in which a first data including a first destination information and a second data including a second destination information are stored, and at least one processor coupled to the at least one memory and the at least one processor configured to control the at least one memory to output the first data and the second data stored in the at least one memory according to a set rate, and control the set rate to output one of the first data and the second data according to a priority degree.