Logical Networks

Transportation networks are made up of physical objects that you can hold or touch with your hand, such as railroad ties and subway rails. Logical network elements do not have these same physical properties as physical networks. Just as virtual reality in video games gives you the illusion of driving a tank or firing a weapon (even though you are not really in a tank or pulling the trigger), logical networks are based on elements that you can't really see or hold, but nonetheless they are there.

A network is made up of several pieces and parts that connect the source and destination. These pieces and parts are grouped into two categories: physical and logical components. It is these physical and logical components that make up ...

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