1.TCP to provide a connection-oriented, reliable byte stream service
2. In a TCP connection, only two parties communicate with each other. Not be used for broadcast and multicast TCP
3.TCP uses a checksum, acknowledgment and retransmission mechanism to ensure reliable transmission
4.TCP order to sort the data section, and using the cumulative data confirm guaranteed and non-repetitive unchanging
5.TCP mechanism implemented using a sliding window flow control, congestion control by dynamically changing the size of the window
Header information
Three-way handshake
Four waving
