H3C S3600-2P-OLT提示ONU离线，是否有命令可以查看到离线原因

设备型号：H3C S3600-2P-OLT

软件版本：Version 5.20, Release 3103P03

H3C S3600-2P-OLT提示ONU离线，是否有命令可以查看到具体离线原因，比如说是因为光衰问题

<olt 8>display onuinfo interface Olt 1/0/1 

 ONU Mac Address LLID Dist(M) Port Board/Ver Sft/Epm State Aging

 48ea-630d-b654 1 1456 Onu1/0/1:1 N/A N/A Up N/A 

 48ea-630d-b62a 2 1305 Onu1/0/1:2 N/A N/A Up N/A 

 48ea-630d-6812 0 N/A Onu1/0/1:3 N/A N/A Offline N/A 

 48ea-630d-b5fe 0 N/A Onu1/0/1:4 N/A N/A Offline N/A 

 48ea-630d-6814 0 N/A Onu1/0/1:5 N/A N/A Offline N/A 

 48ea-630d-68b8 0 N/A Onu1/0/1:6 N/A N/A Offline N/A 

 48ea-6303-92a6 0 N/A Onu1/0/1:7 N/A N/A Offline N/A 

 48ea-630d-692e 0 N/A Onu1/0/1:8 N/A N/A Offline N/A 

 48ea-6303-87e1 0 N/A Onu1/0/1:9 N/A N/A Offline N/A 

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