My favorite: the FedEx Analogy to explain the OSI layers, what
each layer does and how they work together in protocol stacks.
Here’s the latest free tutorial, with embedded video of yours
truly and my favorite analogy: the FedEx Analogy to explain the
OSI layers, what each layer does and how they work together in
protocol stacks. Enjoy! What is a MAC address? The term comes
from the Institute of Electrical and Electronics Engineers
(IEEE) 802 series of standards for LANs and MANs developed
following the invention of Ethernet LANs by the Digital
Equipment Corporation (now a part of HP), Xerox and Intel in
1979. And people say Xerox never does anything original! The
first kind of LAN, Ethernet, employed a bus topology. The term
bus comes from the Latin word omnibus, meaning “all”. It is used
in electrical power systems, where a bus is a thick metal bar
used to distribute electricity to many circuits. Cisco VoIP
phone vulnerability: continuously monitor and record all sound
in people’s offices, boardrooms and be