What is a Collision Domain?

Author cavsi Category: Networking Tags:

A computer network can be segmented physically but also logically. A collision domain is one of the logical network segments in which the data packets can collide to each other. One of the most common protocols used when referring to a collision domain is the Ethernet protocol. Collision domains are often referred as ‘Ethernet segments’.

The term of ‘collision domain’ is also used when describing the circumstances in which a single network device sends packets throughout a network segment and forces every other device in that network segment to pay attention to those packets.

CSMA/CD and Collision Domains
A collision domain can also be a group of Ethernet/Fast Ethernet devices in a Local Area Network running on the Carrier Sense Multiple Access/Collision Detection (CSMA/CD) feature and being connected through repeaters, thus competing for network access. Since only one device in the same collision domain can transmit data at a certain point, the other devices in the network simply listen in order to avoid data collisions.

CSMA/CD is a set of rules telling each network devic-e when to transmit and when to stop transmitting data. When someone in the network wants to transmit something, it “listens” to the network at first in order to see if anyone else is using the channel. If no one else is transmitting, the device will go forward with its own transmission.

The usage of CSMA/CD is an efficient way of avoiding network collisions, but it's not foolproof. It's obvious that if two devices follow the exact same procedure at the exact same time, their transmissions will 100% collide, and they will both become unusable. A jam signal will be sent in order to let everyone else know that a collision took place and they should not send any data. The hosts that collided will each start a random timer, and when that ends, each host will begin to listen on the network again.

Of course, the more collisions in a network, the less efficient the network is.

‘Collision domain’ sometimes reffers to a system where a unique identifier is open for multiple interpretations over different layers. The analogy to our ethernet collision domain is very clear if not obvious.

A collision occurs when two or more network devices are trying to transmit packets at the exact same time.

Related Posts:

Digital Storage Units

Linear video editing is the process of selecting, arranging, and modifying the images and sound recorded on videotape. In the early 1990s, many people used the term video editing instead of linear video editing.

Common Networking Abbreviations

Abbreviations, acronyms, and initialisms related to the Networking terminology. Here you will learn what those letters stand for in a computer network along with their accepted definitions.

Common Information Technology Abbreviations

Acronyms are like abbreviations, in that they are a shorthand way of expressing an idea. An abbreviation is a short form of a word.

Popular Networking certifications

A network certification can help you to get ahead in your career. Network certifications are credentials you can earn to demonstrate you have the knowledge and skills to work with networks in the information technology field.

Popular Apple certifications

Apple offers hardware and software certification programs for business, education, and specialized professionals. An Apple certification helps you demonstrate and measure your skills in Apple products. They are designed to create a high level of technical proficiency among Mac technicians, system administrators, and users.

Popular Cisco Certifications

Cisco is the global leader in issuing IT certifications worldwide. Cisco certifications acknowledge a professional’s skills in a specific Cisco technology, such as data center networking, application services, and voicemail and messaging.

Popular Adobe Certifications

An Adobe certification helps you demonstrate and measure your skills with Adobe products. Getting an Adobe certification can help you differentiate yourself from competitors, advance your career, and improve customer satisfaction.

Common IT Certifications

An IT certification is an accreditation that shows your coworkers and higher-ups that you have extensive knowledge about an application or computer technology. It also shows that you keep learning to stay on top of your game. Let’s see some common IT certifications that will help you advance in your career.

What is Data Transfer Rate?

Data transfer rate is the amount of digital data that moves from one place to another at a given time, in other words the data transfer speed is the speed at which data is transmitted between devices, such as USB , modem, Ethernet, DVD, CD, etc..

Why Do We Use Acronyms and Abbreviations?

An abbreviation is the shortened form of a word while an acronym is a word formed from the first letter of each word in a sentence. The main reason we use abbreviations and acronyms is for convenience.

Help us to continue answering your questions. Did you like this article? Make a reference to "https://www.cavsi.com/" or copy and paste the below HTML text:
Why Do We Use Acronyms and Abbreviations?Why Do We Use Acronyms and Abbreviations?