mscAtmIfVccTmAbrRateDecreaseFactor
1.3.6.1.4.1.562.36.2.1.114.5.7.2.110.1.13
This attribute indicates the Rate Decrease Factor (RDF) for this
connection. The RDF value is computed by using the operational
value of this attribute, n, as 2 to the inverse power n. For example, if
the value of this attribute is 8, RDF is 2E-8 = 1/256.
RDF controls the amount by which the cell transmission rate may
decrease upon receipt of a backward Resource Management (RM)
cell. For example, if a backward RM cell is received with the
Congestion Indication (CI) field set to 1, the Allowed Cell Rate
(ACR) value would be reduced by the amount (RDF*ACR). The
ACR is not allowed to fall below the Minimum Cell Rate (MCR), in
which case the ACR is set to MCR.
For nailed-up connections, this attribute is determined by the
provisioned value of the rateDecreaseFactor attribute. For signalled
connections, it is indicated in the ABR Setup Parameters
Information Element.