This object identifies the class-ID of the class in
an egress policy for which QoS statistics are being
collected.
Each queue on a port is uniquely mapped to a class
in an egress policy. Each class in a policy is
uniquely identified by a class-ID. A value of 0
indicates the default queue/class-default.
This object is deprecated and no direct mapping
is available. All classes must be referred to by
name, cbQosCMName, in CISCO-CLASS-BASED-QOS-MIB.