I stumbled across this article which, unlike any ambiguous article I've read, states that my
"pencil-thin network cable (or wireless network adapter) at the back of your computer contains 65,536 microscopic pathways inside it."
I've always been told that a port is just a number (not a wire) used to distinguish different virtual connections from each other, so how can these two explanations co-exist?
- Also, this can't mean that some of the network cable isn't being used to transfer signals when a port isn't being used does it?
The article also said that
packets are required to stop at each network node and:
- Find an open port,
- Pass the identification test that will allow it through that port, and if not,
- Move to the next port and try again, until it is allowed to pass through the toll.
- I thought packets contained a specific destination port, so why would they search for a new open port?
- Finally, what does it take to pass an identification test?