1, UDP is how to know the pseudo first content? UDP during test and calculation using the IP datagram first some fields, such as the host's IP address, protocol of pseudo first, and this information is not included in the first of the UDP, UDP is how to know the IP layer information?

2, there are two ways to get the time-division multiplexing: synchronous time-division multiplexing and asynchronous time-division multiplexing (statistical time division multiplexing), "while the data on the statistical time division multiplexing output line rate is less than the sum of an output line data rate, but from the point of view of the average, which is balanced", please explain the meaning of this sentence,


Please give detailed answer! Thank you very much!

CodePudding user response:

Good profound problems, top