This read-write value sets the expected long-term utilization percentage of the channel attributable to this end-point, feeding into bandwidth planning calculations similar to bbChanIngrPercentUtil and bbChanEgrPercentUtil but scoped to this connection end-point. It lets the switch's admission-control logic account for how much of the channel's capacity this particular end-point is realistically expected to consume. An admin provisioning a lightly-used end-point on a shared channel might set a low bbConnPercentUtil to reflect its modest expected load.