10506X-G和5570S通过单模万兆光互联接口频繁up/down

10506X-G和5570S通过单模万兆光互联接口频繁up/down，接口双向光衰都正常且非临界值；

105侧告警提示如下：

%Feb  3 17:23:30:360 2026 XXXXXX IFNET/3/PHY_UPDOWN: Physical state on the interface Ten-GigabitEthernet1/3/0/15 changed to up.

%Feb  3 17:23:30:245 2026 XXXXXX DEV/2/INTERNALLINK_ALARM_OCCUR: Internal link alarm occurred. (PhysicalIndex=1535, PhysicalName=Ten-GigabitEthernet1/3/0/15, RelativeResource=(interface:Ten-GigabitEthernet1/3/0/15), ErrorCode=482002, Reason=The interface Physical state changed to down.)

%Feb  3 17:23:30:239 2026 XXXXXXX DEV/2/INTERNALLINK_ALARM_OCCUR: Internal link alarm occurred. (PhysicalIndex=1535, PhysicalName=Ten-GigabitEthernet1/3/0/15, RelativeResource=(bustype:mac link,sourceport:(chiptype:7,chassis:1,slot:3,chipid:0,portid:49)), ErrorCode=427001, Reason=MAC chip link failure.)

%Feb  3 17:23:30:238 2026 XXXXXXX IFNET/3/PHY_UPDOWN: Physical state on the interface Ten-GigabitEthernet1/3/0/15 changed to down.

%Feb  3 17:23:26:427 2026 XXXXXXX DEV/2/INTERNALLINK_ALARM_CLEAR: Internal link alarm cleared. (PhysicalIndex=1535, PhysicalName=Ten-GigabitEthernet1/3/0/15, RelativeResource=(interface:Ten-GigabitEthernet1/3/0/15), ErrorCode=482002, Reason=The interface Physical state changed to up.)

%Feb  3 17:23:26:425 2026 XXXXXX DEV/2/INTERNALLINK_ALARM_CLEAR: Internal link alarm cleared. (PhysicalIndex=1535, PhysicalName=Ten-GigabitEthernet1/3/0/15, RelativeResource=(bustype:mac link,sourceport:(chiptype:7,chassis:1,slot:3,chipid:0,portid:49)), ErrorCode=427001, Reason=MAC chip link recovered.)

105侧诊断文件里面看的对应接口底层告警信息：

这种情况下有哪些可用排查的方向，比如更换模块、插拔线缆等，可能造成的原因又是什么