User:Marmento

CSMA/CD Protocol

CSMA/CD is a protocol that is called Carrier Sense Multiple Access Collision Detection that senses crashes among signals. It's job is to prevent collisions among signals. Basically, data being sent from different computers will cause a crash among signals. CSMA/CD prevents that, meaning it takes back those signals to those computers and make them send their data one at a time. As long as CSMA/CD is there, no collisions will take place. Here's an example: In football, on the goal line, defense tries to stop the offense from scoring a touchdown and the offense tries to score a touchdown.

CSMA/CD prevents signals from crashing, because if they do crash, the network goes completely down. Also, it keeps the network running smoothly without any errors. Once the network goes down, it goes down. So when you have a bus topology, make sure that you have CSMA/CD installed. Without CSMA/CD, your network would crash easily with errors threating your network. With CSMA/CD, your network is safe and secure with signals not crashing and your network not crashing. This makes it alot easier and stress-free with being able to send data to other computers on the network without crashing and your network going down. CSMA/CD is the key for a bus topologies; something that will prevents your network from going down and crashing.

To sum this up, CSMA/CD blocks signals from crashing and sends them back and makes them send their signals to other computers one at a time. Also, to make sure that the network runs smoothly without errors. That's about it, CSMA/CD blocks collisions from happening.