SYSMIB/3/SWITCH_FAIL:OID [oid] Slave switchover fail.
Failed to perform the master-slave switchover.
The master-slave switchover function is not enabled on the device.
The slave main control board is unavailable.
An error causes the master-slave switchover to be failed.
If so, go to Step 4.
If not, go to Step 2.
If so, go to Step 4.
If not, go to Step 3.