This is an OBJECT IDENTIFIER pointing to a variable-length list of percentage values, one per service class, giving the maximum Strict Priority (SP) bandwidth ceiling for each service class on this port, with the OID's length scaling to the number of service classes supported. It lets an admin see the upper bound placed on each priority queue so no single class can consume an entire port under strict-priority scheduling. For example, capping the top-priority service class at 40% here prevents a burst of voice traffic from starving lower-priority queues on that port entirely.