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IT/CCNA: Udemy

Sec4: MAC table

Last72 2018. 2. 15. 21:18

CCNA 200-125, ICND1, Sec. 3: Hubs, History, and Why Hubs Are History

Switch 3 function


Switch don't know where is C is, so send it every port except source port.(Flood)

And update MAC table as A = F 0

Flood MAC address is ff:ff:ff:ff:ff:ff


For the second time, switch know which port should send packet.(Forward)

Also, update MAC table for PC C


Sooner or earlier, switch will complete MAC table.


When switch receive packet that source and destination ports are same, switch discard that packet.(Filter)



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