First of all, check the service status. The services are not affected by the alarms.
Secondly, connected with Huawei HeadQuarter, collect detailed information, such as topology, device, log, and so on.
At last, it is confirmed from HeadQuarter that this type of Channel Faulty Alarm only comes from the communication channel between master SFU and backup SFU.
Since every Router has 4 SFUs, the alarm won’t influence any service.
The Router uses Transformer Chip in Ethernet interface. The chip performance in NE40E SFU board declines, that influences the signal quality in Ethernet Channel.
As a result, the receiver will receive some wrong packets. That causes the Channel Faulty Alarms. Since the following packets are right, the alarm will be cleared very soon, in 1 second.