This read-write INTEGER selects roundRobinOperation or simultaneousOperation for how this RPM I-Port's contention slots are scheduled, with the description explaining round-robin gives the I-Port its own individual contention opportunity in turn, while simultaneous groups it with other I-Ports sharing the same contention slots at once. An admin picks the scheduling mode to balance fairness against contention-slot efficiency across the RPM's I-Ports. For example, an admin sets hcxRpmIPortContSchedType to simultaneousOperation on lightly used I-Ports to conserve contention-slot bandwidth, reserving round-robin for I-Ports needing guaranteed individual access.