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

Indirect addressing mode - assembly language, Indirect addressing mode - as...

Indirect addressing mode - assembly language: The Indirect addressing mode and the address field of the instruction refers to the address of a word in memory, which in turn co

How many and gates are required to realize Y = CD+EF+G, How many AND gates ...

How many AND gates are required to realize Y = CD+EF+G ? Ans. Y = CD + EF + G for realize this two AND gates are needed (for CD and EF).

Realize the basic gates with any one universal gate, What is a universal ga...

What is a universal gate? Give examples. Realize the basic gates with any one universal gate. Ans: Universal Gates:   NAND and NOR are termed as Universal gates. The OR, AN

What is grid computing, (a) What is Grid computing? (b) What are the k...

(a) What is Grid computing? (b) What are the key distinctions between conventional distributed computing and Grid computing? (b) Describe how five features of Grid Computi

Convert ascii code to its bcd equivalent, Convert ASCII code to its BCD equ...

Convert ASCII code to its BCD equivalent. This can be achieved by simply replacing bits in upper four bits of byte by four zeros. For illustration the ASCII '1' is 32h = 0010B. By

Multiple instances of sql server 2000, How do I connect to an SQL Server in...

How do I connect to an SQL Server instance that is running on a machine with multiple instances of SQL Server 2000? Ans) Every instance of MS SQL Server must be listening on a d

Input-output-processor interconnection network (iopin), Input-Output-Proces...

Input-Output-Processor Interconnection Network (IOPIN): This interconnection network is designed for communication between I/O Channels and processors. Every single one proces

Operation codes used in assembly instructions, Q. Operation codes used in a...

Q. Operation codes used in assembly instructions? Now let's describe various operation codes needed for this machine so that we can translate High level language instructions t

Design a flash project, The only way to respond effectively to a design pro...

The only way to respond effectively to a design project is to first understand the topic well yourself. To do this you need to research the topic and ask yourself a series of quest

Cutoff search - artificial intelligence, Cutoff Search : To require a ...

Cutoff Search : To require a mini and max search in a game on stage situation is, in which all we have is just do that programme our agent to look at the intact that search tr

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