Explain about CSMA/CD, Computer Engineering

Assignment Help:

Explain about CSMA/CD

It is an access method used mainly with LANs configured in a bus topology. With CSMA/CD, any station (node) can transmit a message to any other  station  (or  stations)  as  long  as  transmission  medium  is  free  of transmissions  from  other  stations.  Stations monitor (listen to) line to determine if line is busy. If the station has a message to send though the line is busy, it waits for an idle condition before sending its message. If two stations transmit at the same instance, a collision takes place. When this happens, station  first  sensing  the   collision  sends  a  special  jamming  signal  to  all other  stations  on  the  network.  All  stations  then  cease  transmitting  (back  off) and  wait  a  random  period  of  time  before  attempting  a  retransmission.  Random delay time for every station is different and thus, allows for prioritizing the stations on the network. If successive collisions take place, back off period for each station is doubled. With CSMA/CD stations should contend for the network. A station isn't guaranteed access to network. To detect the occurrence of a collision, a station should be capable of receiving and transmitting simultaneously. CSMA/CD is used by most LANs configured in a bus topology. Ethernet is an example of a LAN which uses CSMA/CD.

 


Related Discussions:- Explain about CSMA/CD

Determine how simulation can be developed, Determine how Simulation can be ...

Determine how Simulation can be developed To determine how a simulation can be developed for use in a real situation the below illustration has been chosen. Scenario chosen is

What is smoke testing, What is smoke testing? Smoke testing is a combi...

What is smoke testing? Smoke testing is a combined approach that is generally used when "shrinkwrapped" software products are being developed.

C++, What are virtual Functions

What are virtual Functions

Define external layer, Define external layer? The external layer is the...

Define external layer? The external layer is the plane at which the user sees and interacts with the data, that is, the data format in the user interface.  This data format is

How video effects alters a video, Question : (a) What are the main aspe...

Question : (a) What are the main aspects that should be considered when dealing with green screen? (b) Explain clearly how these video effects alters a video using an illust

What do you meant by extranets, Extranets can be also used to connect an in...

Extranets can be also used to connect an intranet to Internet so that remote offsite access can be made in a company's intranet by an authorized individual. This can facilitate thr

Decision tree learning, Decision Tree Learning: Furthermore there is s...

Decision Tree Learning: Furthermore there is specified in the last lecture such as the representation scheme we choose to represent our learned solutions and the way that we l

Sorting algorithms, Two way merge sort for 84,83,78,90,23,123,98,159,8,200

Two way merge sort for 84,83,78,90,23,123,98,159,8,200

What is the application of e-commerce in home shopping, What is the applica...

What is the application of E-Commerce in Home Shopping? Application of E-Commerce in Home Shopping: Television broadcast of goods for purchase sent it directly to a viewe

Facsimile , FACSIMILE : This is often known as 'fax' and it represents the...

FACSIMILE : This is often known as 'fax' and it represents the interface between reprographic and computer technology. By using fax, the contents of a sheet of paper (text or illu

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