Possible cause of the BUS_ERR alarm reported after WDM equipment is upgraded

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If the service mode is incorrectly configured for some boards such as NS2 and TDX, a BUS_ERR alarm will be reported after the upgrade is complete. When a BUS_ERR alarm is reported, verify the line mode.

Other related questions:
Possible cause of the BUS_ERR alarm that is reported on an NS2 board after OptiX OSN 6800 is upgraded
The possible cause of the BUS_ERR alarm is that the board mode is incorrect. You are advised to modify the value of the line mode parameter.

Possible cause of the BUS_ERR alarm that is reported on a TDX board after OptiX OSN 6800 is upgraded
The possible cause of the BUS_ERR alarm is that the board mode is incorrect. You are advised to modify the value of the line mode parameter.

Possible causes of a failure of an interconnection between WDM equipment and a router
The possible causes are as follows: Possible cause 1: The line between the WDM equipment and the data equipment is faulty. Possible cause 2: The client-side parameters of the interconnected boards on WDM products are incorrectly configured. Possible cause 3: An interconnected board is faulty.

If devices are added through SNMP V3, alarms cannot be reported after a switchover.What is the possible causes?
After an active and standby board switchover, device power-on or power-off, or device restart,device engine IDs change, and alarms cannot be reported.

Possible cause of the OTU3_LOF alarm that is transiently reported by the NS3 board on the OSN 8800
The possible cause is that the embedded TDC module on the NS3 board is faulty. In general, the alarm can be cleared after the NS3 board is replaced.

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