High-Level Data Link Control

What is a High-Level Data Link Control (HDLC)?

Definition and meaning of High-Level Data Link Control

A high-degree facts Hyperlink manipulate (HDLC) is a Protocol that is a bit-orientated Synchronous Records link Layer. HDLC ensures the mistake-Free transmission of inFormation to the right locations and controls the Data Transmission pace.

HDLCs can offer each connection-orientated and Connectionless Services.

What Does High-Level Data Link Control Mean?

A high-degree facts link manipulate defines policies for transmitting statistics between commUnity points. Data in an HDLC is organized into gadgets referred to as Frames and is desPatched across Networks to precise locations. HDLC also manages the tempo at which records is transmitted. HDLC is normally used inside the open structures Interconnection (OSI) Model’s Layer 2.

HDLC frames are transmitted over synchronous links or Asynchronous links, which do no longer mark the start and quit of frames. This is performed using a body Delimiter or Flag, which includes unique Collection of bits that aren't seen inside a frame.

There are three types of HDLC frames:

• Information frames/User information (I-frames)
• Supervisory frames/Control information (S-frames)
• Unnumbered frames (U-frames)

The common Fields within an HDLC frame are:

• FLag
• Address
• Control statistics
• Frame test series

The HDLC protocol is utilized by a Variety of standards implemented in the Protocol Stacks of X.25, V.Forty two and ISDN and many other protocol Stacks.

What does HDLC stand for?

When we refer to HDLC as an acronym of High-Level Data Link Control, we mean that HDLC is formed by taking the initial letters of each significant word in High-Level Data Link Control. This process condenses the original phrase into a shorter, more manageable form while retaining its essential meaning. According to this definition, HDLC stands for High-Level Data Link Control.

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