STP_STATE_SIMPLE
case STP_STATE_SIMPLE:
port_set_stp_state(hw, SWITCH_PORT_NUM, STP_STATE_SIMPLE);
STP_STATE_SIMPLE);
port_set_stp_state(hw, SWITCH_PORT_NUM, STP_STATE_SIMPLE);
port_set_stp_state(hw, port->first_port, STP_STATE_SIMPLE);