networking - Network I/O serialized -

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Why network I / O has been serialized Is not it parallel?

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Good, like actual packets (they can all root differently, for example) But at some point you're going to want a stream, where you read the data in the same order in which you put it - this is the main point of TCP, how will you do it?

Can you always use different sockets to give additional parallels? Or have I misunderstood your meaning?

Some network protocols offer "broadcast", but it is not always available (for example, many network devices, which will deliberately configure UDP to block broadcast)

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