The value of tmnxBsxAqpSapSubscrPortId along with
tmnxBsxAqpSapSubscrEncapValue specifies a
Service Access Point (SAP) subscriber. A SAP
subscriber matching this criteria is used to
resolve to an AQP action.
This object was obsoleted in R9.0 and replaced
with the tmnxBsxAqpAaSubscriber object.