Measurement of packet delay variation

The means of packet selection for measurement is not specified in RFC 3393, but could, for example, be the packets that had the largest variation in delay in a selected time period.

The delay is specified from the start of the packet being transmitted at the source to the start of the packet being received at the destination. A component of the delay that does not vary from packet to packet can be ignored. If the packet sizes are the same and packets always take the same time to be processed

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