This attribute specifies the bandwidth at which the transport
connection agrees to transfer information.
A conservative value would be the sum of the committed
information rates (CIRs) of all individual Frame Relay DLCIs
multiplexed on the transport connection.
For ATM connections, the value is converted to an equivalent Peak
Cell Rate (PCR01) for all cells with Cell Loss Priority (CLP), CLP
= 0 and CLP = 1.
Note that the conversion to an equivalent cell rate for ATM
connections may result in some wasted bandwidth depending on the
average frame size to cell ratio.