what is a collision domain
a collision domain is a logical area in a computer network where data packets can collide with one another the term is used mainly with regard to ethernet which is by far the most commonly used type of local area network lanhus a collision domain could also be defined as being all the network segments between a pair of bridges or other layer two devices the optimal size of a collision domain depends on a number of factors among them is the number of collisions as a higher number of them results in a lower efficiency of the network