mscAtmIfCAVbrRtCellLossRatio 1.3.6.1.4.1.562.36.2.1.114.3.100.1.80

This attribute has been obsoleted and migrated under the RtVbr subcomponent. In addition, the type and range of this attribute has been changed. This attribute specifies the tolerable cell loss ratio (CLR) for rt- VBR traffic. The number is the logarithm (base 10) of the CLR. In other words if the target CLR = 1E-10 then vbrRtCellLossRatio = - 10. This number must be the same as the cbrCellLossRatio since CBR and rt-VBR traffic have the same discard priority. The vbrRtCellLossRatio is used by the Connection Admission Control (CAC) algorithm to compute the required (equivalent) cell rate for rt-VBR connections. This number must be less than or equal to the vbrNrtCellLossRatio, since rt-VBR traffic has a higher discard priority. There is a trade-off between the service category CLR and the achievable link utilization. To guarantee an excellent service category, the CLR should be as small as possible (e.g., 1E-10). However, a smaller CLR results in a larger equivalent cell rate for a given connection and hence a lower link utilization.