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Ethernet LAN Switching - Coggle Diagram
Ethernet LAN Switching
Local area network, LAN, switch is use to expand land, only switch connect to router will become that land router can differentiate them
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Ethernet Frame
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Preamble,7 bytes, 56 bits, allow device to synchronize their receiver
Start Frame delimiter, marks the end of preamble
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Destination and Source
Type/ Length
7,1,6,6,2 bytes
Frame Check Sequence, detect Cyclic Redundancy Check, CRC to detect corrupted data
26 bytes in total, header + trailer
MAC
Unicast frame, go to single destination
Dynamic learned MAC address, dynamic MAC address
Flood = Unknown unicast frame, send frame to all other places except the one who send
Forward = Known Unicast frame
Dynamic MAC address are removed from MAC address table after 5 mins inactivity
Quiz
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OUI look first half 24 bits