0 votes 0 votes Computer Networks computer-networks + – rajoramanoj asked Oct 2, 2017 rajoramanoj 603 views answer comment Share Follow See all 9 Comments See all 9 9 Comments reply Show 6 previous comments rajoramanoj commented Oct 3, 2017 reply Follow Share In csma/cd the sender doesn't holds a copy after it has sent a frame so the sender sends a frame now if a collision is detected it resends after a random amount of time. In the worst case the collision report can take 2*prop time to reach the sender. If the sender is still transmitting then only it can resend it else not. That's reason why frame transmission time must be > 2 prop. Time 0 votes 0 votes Shubhanshu commented Oct 3, 2017 reply Follow Share @rajoramanoj please explain by taking an example. 0 votes 0 votes G.K.T commented Oct 3, 2017 reply Follow Share http://www.erg.abdn.ac.uk/users/gorry/course/lan-pages/csma-cd.html This link has explained in well illustrative manner please go through it once. 0 votes 0 votes Please log in or register to add a comment.