Question
1-persistent CSMA means: -if the channel is idle, transmit a frame with probability 1(do it). -if the channel is busy, continue sensing until it becomes
1-persistent CSMA means:
-if the channel is idle, transmit a frame with probability 1(do it).
-if the channel is busy, continue sensing until it becomes free, then emit.
-if a collision occurs, wait for a random length of time and try again.
Non-persistent CSMA means:
-if the channel is idle, transmit the frame.
-if the channel is busy, wait for a random length of time and try again.
-if a collision occurs, wait for a random length of time and try again.
a)Show me a scenario (by scenario I mean some machines at certain points in time generate a data message that they want to send over the LAN) such that 1persistent CSMA causes a collision but non-persistent CSMA does not cause a collision.
b)Same as (a) but backwards, show me a scenario in which non-persistent CSMA causes a collision but 1-persistent CSMA does not.
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Authors: Iris Blanc
3rd Edition
141886515X, 978-1418865153
