Traffic modeling for HFC networks differs from traffic modeling for queuing systems by a greater emphasis on individual connections and on short-range dependencies. These issues are illustrated by means of a model for WWW or web client traffic and a simulation of an HFC network that serves a number of web clients. These simulations offset the number of clients that an HFC network can serve against the quality of service they receive. In addition, these simulations compare the quality of service received by web clients to the quality of service received by comparable Poisson sources.