In Link Aggregation Group (LAG) settings, port priority determines which ports carry traffic preferentially. (A) If a primary port is configured to preferentially carry services, it must have a higher priority than other ports to ensure it is selected first. Port priority is numerically represented, and (D) a lower value of “port priority” means higher priority, which can be counterintuitive but is standard in networking. For manual aggregation groups that don’t run LACP, priority settings typically do not apply. This priority mechanism helps optimize link utilization and failover in aggregated links, as detailed in HCIP-Transmission documentation on Ethernet and service aggregation.