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A Diagram Comparing Tcp Connection Establishment And Termination Between A Host And A Server. The Left Side Shows The Three-Step Process: Host Sending Syn, Server Sending Syn Ack, And Host Sending Ack To Establish The Connection. The Right Side Shows The Four-Step Termination: Host Sending Fin, Server Sending Ack And Fin, And Host Sending Ack To Terminate.
CCNA

Master TCP Connection Establishment and Termination – Boost Your Skills (Updated 2025)

All application processes on the server use unique port numbers. The network administrator can use default ports (e.g., 80 for HTTP, 21 for FTP) or configure custom ports manually, ensuring no conflicts. An active server application requiring an open port on the server means the transport layer accepts and processes segments addressed to that port...

Asad Ijaz 9 min read
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