This writable IpAddress sets the IP address of this switch, per the description, and explicitly takes effect immediately upon being changed -- there is no separate save/reboot/activate step implied. Because the change is immediate, an admin pushing this value remotely via SNMP needs to be certain the new address is reachable and correctly routed before committing the write, since an incorrect value would sever the very management session used to make the change, requiring console access to recover. This immediate-effect behavior is the key operational fact that distinguishes writing this object from a typical staged configuration change.