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MAC Address


 

Media Access Control Address

Is a hardware address that uniquely identifies each node of a network with a 12 digit reference. Each hardware manufacture that makes network equipment is given a unique reference (the starting part of the MAC address) to use and to apply to each piece of network equipment they make.

The MAC layer (part of the OSI 7 layer model, yeah yeah enough already) interfaces directly with the network medium, thus each different type of network equipment must have a unique identifier, else there'll be chaos.

A simple example of the chaos would be to liken it to shouting out the name 'John' to a room full of people called John, they would all reply and confusion would reign, ok ok that was crap but you get the idea.

 



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