The causes of last LOS action are: [portLinkDown] - port [oaDevLosGrActivePortNumber] is active because other Group member port became Link Down now. [portLinkUp] - port [oaDevLosGrActivePortNumber] is active because it became Link Up now. [agRMepDiscardEvent] - port [oaDevLosGrActivePortNumber] is active because other Group member port received 'Remote Mep Discard Event'. [agRMepNoConnEvent] - port [oaDevLosGrActivePortNumber] is active because other Group member port received 'No connection to Remote Mep Event'. [agRMepAliveEvent] - port [oaDevLosGrActivePortNumber] is active because it received 'Remote Mep Alive Event'. [activePortAdminSet] - port [oaDevLosGrActivePortNumber] is active because of administrative setting.