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Learn about High Level Data Link Control (HDLC), a fundamental data link layer protocol used in computer networks. Explore the key characteristics and functionality of HDLC as a bit-oriented protocol that provides reliable data transmission between network nodes. Understand how HDLC operates at the data link layer of the OSI model and its role in establishing, maintaining, and terminating communication links. Discover the frame structure of HDLC including flag sequences, address fields, control fields, information fields, and frame check sequences. Examine the different types of HDLC frames such as information frames, supervisory frames, and unnumbered frames, and their specific purposes in network communication. Study the error detection and correction mechanisms implemented in HDLC, including how it handles lost, duplicated, or corrupted frames. Analyze the flow control features of HDLC and how it manages data transmission rates between sender and receiver. Gain insights into the practical applications of HDLC in various networking scenarios and its importance in ensuring reliable data communication across network links.
