This read-create enumerated value sets how the primary link in a Smart Link group reclaims active status after recovering from a failure: none(1) disables preemption, role(2) preempts based on port role, and speed(3) preempts based on link speed. An admin picks role-based preemption to always prefer the port originally designated primary, or speed-based preemption to favor whichever link currently has higher bandwidth. Setting this to speed(3) with hpnicfSmlkSpeedThreshold configured means the standby port automatically takes back over as active once its link speed exceeds the configured threshold.