中兴C220，某一PON口下部分ONU反复上下线，其他ONU虽然不反复上下线，但业务也受影响 show interface epon-onu_0/3/1:3 ONU statistic: Input rate: 608(bps), 3(pps); Output rate: 0(bps), 0(pps); Input bandwidth thoughput: 0.0%; Output bandwidth thoughput: 0.0%; Interface peak rate : Input peak rate: 2192(bps); Out peak rate: 1120(bps); Total statistic: Input : Bytes: 399152, Packets: 1902672894813; Unicasts: 1902670478023; Multicasts: 105; Broadcasts: 1840; Non unicast: 1945; Error packets: 2414811; Error packets rate: 101.3483%; Drop packets: 34; Drop packets rate: 0.0014%; Output: Bytes: 239737, Packets: 3406; Unicasts: 3406; Multicasts: 0; Broadcasts: 0; Non unicast: 0; Error packets: 0; Error packets rate: 0.0000%; Drop packets: 0; Drop packets rate: 0.0000%. 可以看到input 中 Error packets非常多，也在增长 哪位遇到过这种情况，何解？ 如果因为某台ONU发光异常导致的，能否通过远程查找到这台异常ONU？ 或者是其他原因导致？