This read-create enumerated value, defaulting to down(2), administratively enables or disables the ICR node: setting it to up(1) lets the node transition from initialize to active or standby based on rbnIcrPriority, while setting it to down(2) forces it back to the initialize state. Per the description, other read-create row objects can only be modified while this is down, and it can only be set to up when rbnIcrRowStatus is active. An admin changing rbnIcrPriority on an existing entry would first set this to down(2), make the change, then set it back to up(1).