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Excalidraw Data

Text Elements

SW 1

PC 2

PC 1

PC 3

F0/2

F0/1

F0/3

Fast Ethernet Port 1 (100mbit/s)

AA:AA:AA:00:00:03

AA:AA:AA:00:00:02

AA:AA:AA:00:00:01

OUI → same on all pcs (in this example) → their from the same maker

Dst: .0002 Src: .0001

Switch adds src mac to his mac addr table → MAC interface .0001 F0/1 → dynamiclly learned MAC addr / Dynamic mac → after 5min of inactivity Dynamic MAC addr removed from table → doenst know where the dst mac is → Unknown Unicast Frame → FLOOD → Known Unicast Frame if no FLOOD is needed → FORWARD

FLOOD → sends a copy of the frame to every connected interface except the one who sent it

Dst: .0002 Src: .0001

Drops Frame since wrong addr

recieves packet and process it normally with the osi stack

if PC 2 replies src and dst are swapped → Switch adds PC 2 mac addr to the mac addr table