This attribute is HISTORICAL. Please refer to the attribute of the
same name in the group AtmTmOper.
This attribute indicates the quality of service for the called to calling
direction for this connection. This is only applicable to Soft PVC
and SVC connections.
Class 1 supports a QOS that meets Service Class A performance
requirements (Circuit emulation, constant bit rate video).
Class 2 supports a QOS that meets Service Class B performance
requirements (Variable bit rate audio and video).
Class 3 supports a QOS that meets Service Class C performance
requirements (Connection-Oriented Data Transfer).
Class 4 supports a QOS that meets Service Class D performance
requirements (Connectionless Data Transfer).
Class 0 is the unspecified QOS class; no objective is specified for
the performance parameters.
A value of notApplicable is displayed in the case of nailed-up PVCs
for which this attribute has no significance.