'Synchronous data link control' presentation slideshows

Wide Area Networks

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High-Level Data Link Control (HDLC)

High-Level Data Link Control (HDLC). HDLC was defined by ISO for use on both point-to-point and multipoint data links. It supports full-duplex communication Other similar protocols are Synchronous Data Link Control (SDLC) by IBM Advanced Data Communication Control Procedure (ADCCP) by ANSI

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Sliding window protocols:

Sliding window protocols:. Window: subset of consecutive frames only frames in window can be sent. Typical frame format: If seq field is m bits then seq nos are between 0 and 2 m -1

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Sliding window protocols:

Sliding window protocols:. Window: subset of consecutive frames only frames in window can be sent. Typical frame format: If seq field is m bits then seq nos are between 0 and 2 m -1

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Chapter11 Homework

Chapter11 Homework. 15, 16, 20. Data Link Layer. High-Level Data Link Control (HDLC). HDLC is based on IBM's Synchronous Data Link Control (SDLC) protocol, which is widely used by IBM's large customer base in mainframe computer environments. High-Level Data Link Control (HDLC).

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ECE4321 Computer Networks

ECE4321 Computer Networks. Chapter 7 HDLC. Data Link Control Protocols. Advance Data Communication Control Procedures (ADCCP): ANSI X3.66 adopted by the US National Bureau of Standards (FIPS PUB 71-1) Link access procedure balanced (LAP-B): adopted by CCITT, a part of x.25

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Message Delineation

Message Delineation. Identify the start and end of messages by:. Message Delineation by Flags. Examples of data link protocols using Start and Stop Flags for message delineation: Asynchronous Transmission Protocols Synchronous Data Link Control Protocol (SDLC)

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CHAPTER-3

CHAPTER-3. continues. Sliding Window Protocols. previous protocols - data frames were transmitted in one direction In practical situations - need for transmitting data in both directions

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