TCP protocol is a data transmission connection, since there is a link, it certainly does not support broadcasting
Tcp packets need to understand the format, there is an emergency and emergency control bit pointers
Emergency bit URG- when URG = 1, indicates that the urgent pointer field is valid. It tells the system in this segment there is urgent data to be transmitted as soon as possible (equivalent to high-priority data)
Able to ascertain the processing capability of the recipient, when the recipient does not receive a large amount of data, the new data will discontinue transmission is a function of TCP because TCP is a state of the recording data stream, it is possible to detect whether the other party to accept
