The value of tmnxVdoIfIngressQosPolicyId specifies the row index
in the TIMETRA-QOS-MIB::tSapIngressTable corresponding to this
ingress QoS policy. It has a value of '1' if no policy is specified.
The value of this object can be set only when the value of
tmnxVdoIfVdoGrpId has been set to a value other than '0'.