These models are useful during the development of telecommunication technologies, in view to analyse the performance and capacity of various protocols, algorithms and network topologies .
The actual content of the payload data is typically not modeled, but replaced by dummy packets.
However, if the payload data is to be analyzed on the receiver side, for example regarding bit-error rate, a Bernoulli process is often assumed, i.e. a random sequence of independent binary numbers.
[2] This document describes the following types of traffic flows: The main idea is to partly implement HTTP, FTP and TCP protocols.
For example, an HTTP traffic generator simulates the download of a web-page, consisting of a number of small objects (like images).