What does it mean by layer 2 or layer 3 structure in reference of computer networking?

It is reference to the OSI model used with networking. Its a ';guide'; and sort-of-standard on how computers communicate and translate information from human readable to binary.





Chart link below shows the OSI model:


http://www.novell.com/info/primer/art/pr鈥?/a>What does it mean by layer 2 or layer 3 structure in reference of computer networking?
Layer 2 is the data link layer where the transmission protocol is defined. Layer 3 is where switching and routing takes place.

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