mscAtmIfCARtVbrWeightPolicy 1.3.6.1.4.1.562.36.2.1.114.3.3.100.1.90

This attribute specifies the policy which is applied when calculating the fairness weight for unshaped connections of the rt-VBR service category. The fairness weight for a connection determines the relative amount of bandwidth which that connection obtains, compared to other connections in the same service category. Connections with equal weight get equal transmit opportunities. Connections with higher weights get more transmit opportunities compared with connections that have lower weights. An override to this default may be specified for a provisioned connection under the Vcd Tm or Vpd Tm component. The fairness weight for a connection is directly proportional to the value of one of the traffic descriptor parameters for that connection. This attribute specifies which traffic descriptor parameter is used for connections of the rt-VBR service category. This attribute is ignored on CQC-based ATM cards and the 1pOC48SmSrAtm card. This attribute is also ignored on ATM IP cards if unshapedTransmitQueueing is set for common queuing. If this attribute is set to scr, the fairness weight is proportional to the transmit sustained cell rate (SCR) of a connection. Connections with a higher SCR have a higher fairness weight. For connections with txTrafficDescType 3, which have no SCR, the sustained cell rate is assumed to be equal to the peak cell rate. If this attribute is set to pcr, the fairness weight is proportional to the transmit peak cell rate (PCR) of a connection. Connections with a higher PCR have a higher fairness weight. Connections with txTrafficDescType 1 or 2 get a minimum weight, which is 1. If this attribute is set to ecr, the fairness weight is proportional to the equivalent cell rate (ECR) of a connection as calculated by connection admission control (CAC). Connections with a higher ECR have a higher fairness weight. Connections with an ECR of 0 get a minimum weight, which is 1. The weight of a connection is visible in the Vcc Tm, Vpc Tm, or Vpt Tm weight attribute. This attribute does not apply to basic Vpts, and standard Vpt Vccs.