More frequently VSAT systems support interactive data transactions, which are very
short in duration. Thus, we can expect bursty operation from a remote VSAT terminal.
One application is to deliver, in near real time, point-of-sale (POS) information, forwarding it to headquarters where the VSAT hub is located. Efficiency of bandwidth use
is not a primary motivating factor in system design. Thus for the interactive VSAT data
network environment, low delay, simplicity of implementation, and robust operation are
generally of greater importance than the bandwidth efficiency achieved