This attribute is applicable and is displayed only for connections for
which the operational Tm abrConnectionType is displayed as
sourceDest or virtualSourceDest.
This attribute indicates the type of change in the Allowed Cell Rate
(ACR) as a result of the information in the last backward Resource
Management (B-RM) cell received from the interface.
This attribute value is only applicable when the Vcc Tm or Vpc Tm
abrConnectionType attribute is sourceDest or VirtualSourceDest.
In all other cases, this attribute value is notApplicable.
A value of noChange indicates that the rate did not change as a
result of the last backward RM cell received.
A value of decreasedByRdf or increasedByRif indicates that the
ACR was increased or decreased by the corresponding factor. This
change is as a result of the CI or NI bit setting in the last backward
RM cell, or an ADTF timeout.
A value of setToExplicitRate indicates that the ACR was set to the
ER value in the last backward RM cell.