Explain high level data link control, Computer Engineering

Assignment Help:

Explain High Level Data Link Control.

HDLC - it is High Level Data Link Control:

Protocol Overall explanation:

Layer 2 of the OSI model is the data link layer. One of the most common layers 2 protocols is the HDLC protocol. The fundamental framing structure of the HDLC protocol is demonstrated below:

HDLC uses zero deletion/insertion process (commonly termed as bit stuffing) to make sure that the bit pattern of the delimiter flag does not arise in the fields among flags. The HDLC frame is synchronous and hence relies on the physical layer to give method of clocking and synchronizing the reception and transmission of frames. The HDLC protocol is defined through ISO for utilization on both point-to-point and multipoint (multidrop) data links. This supports full duplex transparent-mode operation and is at this time extensively used in multipoint and computer both networks.

High Level Data Link Control has three operational modes as:

a) Normal Response Mode (NRM)

b) Asynchronous Response Mode (ARM)

c) Asynchronous Balanced Mode (ABM)


Related Discussions:- Explain high level data link control

What is a demultiplexer, What is a Demultiplexer ? Ans. Demultiplex...

What is a Demultiplexer ? Ans. Demultiplexer has similar circuit as decoder but here E is obtained as the particular input line, the output lines are similar as decode

Which network connects multiple company locations, A/An                net...

A/An                network is typically a company network that connects multiple company locations into a single network. (A)  local area                                  (B

Evaluate fixed execution time, The statement of Gustafson's law can be desc...

The statement of Gustafson's law can be described with the help of an illustration. Let us take a problem, say P, which has to be solved using a parallel computer. Let Ts be the ti

Show the ranges of port numbers, Q. Show the ranges of Port numbers? P...

Q. Show the ranges of Port numbers? Port numbers are divided into three ranges: Well-known ports are those from 0 through 1,023. Registered ports are those from

Why is catch almost always a bad idea, Why is catch (Exception) almost alwa...

Why is catch (Exception) almost always a bad idea?  Well, if at that point you know that an error has happened, then why not write the proper code to handle that error instead

Benefits of device controllers, Q. Benefits of Device controllers? Usin...

Q. Benefits of Device controllers? Using device controllers for attaching I/O devices to a computer system in place of connecting them directly to system bus has subsequent ben

How to use multiple source files in php, a. How to use source files in PHP?...

a. How to use source files in PHP? Define with examples. b. What are benefits of PHP sessions? How is a PHP session formed? c. What is XML and explain its utility? Design an

Write shorts notes on digital signature, Write shorts notes on Digital Si...

Write shorts notes on Digital Signature. This method is used to authenticate the sender of a message. For sign a message, the sender encrypts the message by using a key ident

Explain priority interrupt, What is priority interrupt? A priority inte...

What is priority interrupt? A priority interrupt is an interrupt that establishes a priority over the various sources to verify which condition is to be serviced first when two

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd