What is Multiplexing and demultiplexing and how do these tasks interact with IP? I’m trying to learn and it’s just not clicking.
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In general, multiplexing is anything where you take multiple signals and combine them into one. Demultiplexing is taking something that has been multiplexed and getting back the original, separate, multiple signals.
There are two general strategies for doing this digitally:
* By space – packets for each signal are chopped up and combined into a new packet that contains some of the chopped up bits from each signals.
* By time – Each signal is given a certain amount of time to communicate across the shared channel.
At the IP level, you’d probably see the space division method whereas the time division method can happen higher up, typically at the application level.
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