The Average Bit Rate of the sender's data
stream. Within a transmission burst, the ar-
rival rate may be as fast as hwRsvpTeResvFwdT-
SpecPeakRate (if supported by the service
model);however, averaged across two or more
burst intervals, the rate should not
exceed hwRsvpTeResvFwdTSpecRate.
Note that this is a prediction, often based on
the general capability of a type of codec or
particular encoding; the measured average rate
may be significantly lower.