CSC458H1 Lecture 3: LAN-IP
Document Summary
Interconnecting lans: ethernet wired local area network (lan) technology, 10mbps 10gbps, idea: hosts connected to shared medium, used for connection. Solution: resolved by ethernet csma/cd: carrier sense = wait for link to be idle before transmitting. Channel = idle can start transmitting. Channel = busy wait until idle: collision detection = listen while transmitting, prevent collisions, random access = retry after collision with exponential back-off. Collision abort transmission, send jam signal. Wait k 512bit times (delay) before trasmitting again. K is choosen uniform randomly from range 0, ,2, 1. A b transmit packet at time t/, latency d. B a transmit packet at time t1
