Description: This traffic descriptor is for Peak Cell Rate (PCR), Sustained Cell Rate (SCR), Maximum Burst Size applied to SCR, and Cell Delay Variation Tolerance applied to PCR. The use of the parameter vector for this type: Parameter 1: CLP=0+1 peak cell rate in cells per second Parameter 2: CLP=0+1 sustained cell rate in cells per second. Parameter 3: maximum burst size in cells Parameter 4: CDVT in cell-times Parameter 5: not used.