def _format_mac_string_to_bytes(mac_string):
    """
    "00-11-22-33-44-55-66-77" -> [0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77]
    :param str mac_string:
    :return: the mac address as list of bytes
    :rtype: list
    """
    return [int(b,16) for b in mac_string.split('-')]