Saturday, December 21, 2013

OSI Model: How Data Gets Encapsulated And Moved Across The Wire

I found this while doing some leisure network reading and, again, because Im a visual learner, I thought this might be interesting for those interested.
When you send data from your computer, the information goes "down" the protocol stack from application to physical layers (7-1).  The packet goes across the Cat5 and is received on the far end PC (or whatever).  NIC gets it and is decapsulated "up" the protocol stack.  Interesting stuff.

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