TCPVerbindungsmodus

TCPVerbindungsmodus refers to the state of a Transmission Control Protocol (TCP) connection during its lifecycle. TCP is a reliable, connection-oriented protocol used for data transmission over the internet. Before any data can be exchanged, a connection must be established between the two communicating devices. This establishment process, known as the TCP three-way handshake, involves a series of SYN, SYN-ACK, and ACK packets exchanged between the client and the server. Once the handshake is complete, the connection enters an established state, ready for data transfer.

During data transfer, the connection can be in various states, primarily focused on ensuring reliable delivery. This includes states related to sending and receiving data, acknowledging received data, and managing flow control to prevent overwhelming the receiver. If data is lost, TCP mechanisms will retransmit it. The connection remains in the established state until one or both parties decide to terminate the communication.

The termination of a TCP connection also involves a specific process, often a four-way handshake utilizing FIN and ACK packets. This ensures that all data has been sent and acknowledged before the connection is fully closed. The different states are crucial for maintaining the integrity and order of data packets, making TCP suitable for applications requiring reliable communication like web browsing and file transfers.