@staticmethod
def get_ntp_status(mibversion):
    """return the correct ntp status depending on the firmware"""
    if mibversion == 'NG':
        return {'0': 'notAvailable', '1': 'notSynchronized', '2':
            'synchronized'}
    return {'0': 'notSynchronized', '1': 'noGoodRefclock', '2':
        'syncToExtRefclock', '3': 'syncToSerialRefclock', '4':
        'normalOperationPPS', '5': 'normalOperationRefclock', '99': 'unknown'}
