Servers pump data.
Production is governed by the amount of data available from the hard disk subsystem.
Consumption is governed by the bandwidth of the data delivery system - the network. The highest production rate at this time approaches 30 megabytes per second or 240 megabits per second. Although gigabit networks are available, the fastest local area networks in common use are 100 megabits per second. Clearly the network is the limiting factor. In most networks, the actual demand is a small fraction of available band-pass.