    g.add_argument('--rise', metavar='N', default=3, type=int, help='check N times before considering the service up')
    g.add_argument('--fall', metavar='N', default=3, type=int, help='check N times before considering the service down')
…
    g.add_argument('--withdraw-on-down', action='store_true', help='Instead of increasing the metric on health failure, withdraw the route')
…
        for ip in options.ips:
            if options.withdraw_on_down or target is States.EXIT:
                action = 'announce' if target is States.UP else 'withdraw'
            else:
                action = 'announce'
            command = f'{prefix} {action}'
            announce = f'route {ip} next-hop {options.next_hop or "self"}'

            if action == 'announce':
                announce = f'{announce} med {metric}'
…
            metric += options.increase

            # Send and flush command
            logger.debug(f'exabgp: {command} {announce}')
            sys.stdout.write(f'{command} {announce}\n')
            sys.stdout.flush()
…
        elif state == States.FALLING:
            if not successful:
                checks += 1
                if checks >= options.fall:
                    state = trigger(States.DOWN)

Warm-up