1 00:00:00,390 --> 00:00:06,930 In the previous two lectures, we have discussed the convention method of Korea since May and along 2 00:00:06,930 --> 00:00:14,640 with collision avoidance and in this we will see Korea since multiple axis with collision detection. 3 00:00:15,430 --> 00:00:17,130 Let's look at the difference between them. 4 00:00:17,500 --> 00:00:25,410 But what is CSM, KDDI, when the device is sending the frame is transmitting on to Wired Network. 5 00:00:25,830 --> 00:00:28,770 The CSM is the convention method is used. 6 00:00:29,820 --> 00:00:37,020 This matter is somewhat more efficient because it is possible for wire computers to detect collisions 7 00:00:37,020 --> 00:00:44,760 while wireless stations cannot detect it in a hosts or routers interface needs to send a frame. 8 00:00:44,970 --> 00:00:51,030 It checks the wire and if no traffic is detected, it sends it without checking a random. 9 00:00:51,840 --> 00:00:57,630 However, it continues to listen, and if it detects that a collision has occurred, it sends out a 10 00:00:57,630 --> 00:00:58,620 jam signal. 11 00:00:59,010 --> 00:01:04,100 It sends out a jam signal that requires all the stations to stop transmitting. 12 00:01:04,920 --> 00:01:11,070 Then the two computers that were involved in the collision will both be random amount of time. 13 00:01:11,190 --> 00:01:15,220 That is a random act of algorithm and the counters will decremental zero. 14 00:01:16,230 --> 00:01:23,280 So instead of using a random breakoff algorithm, every time a transmission occurs, Ethernet uses its 15 00:01:23,340 --> 00:01:32,190 ability to detect collisions and uses this timer only when required, which makes the process more efficient. 16 00:01:32,880 --> 00:01:40,720 I hope you have an overview of a system in the next lecture will discuss the operation of seismicity 17 00:01:40,770 --> 00:01:43,950 like we have discussed the operation of CSM MCM.