def transmit_delay=(val)
      no_cmd = (val == default_transmit_delay) ? 'no' : ''
      delay = (val == default_transmit_delay) ? '' : val
      config_set('interface_ospf', 'transmit_delay',
                 @interface.name, no_cmd, delay)
    end
def transmit_delay=(val)
      no_cmd = (val == default_transmit_delay) ? 'no' : ''
      delay = (val == default_transmit_delay) ? '' : val
      config_set('interface_ospf', 'transmit_delay',
                 @interface.name, no_cmd, delay)
    end
interface %s
   ip ospf transmit-delay %d