Layer3 is the Network Layer of the OSI Model, IP operates at Network Layer, OSI Model comprises of 7 layers, Application, Presentation, Session, Transport, Network, Datalink, Physical layers.
It is a model to follow when you are building Operating systems, applications to be used on the internet or compatibility with others.
Hope this helps
Mutahir
PS : Read about it on the wiki link i have provided, let me know for any other questions you may have.
I have a Dlink DES-1005D earthnet switch which is used by 2 computers for a single broadband...
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I have a Dlink DES-1005D earthnet switch which is used by 2 computers for a single broadband connection. Is there a way I can keep track of the other user's usage?