Precautions - Perform a redundancy switchover only after you have confirmed that the redundancy UPCC is available and have obtained consent from Huawei headquarters.
- If a switchback is required, perform the operation only after you have obtained consent from Huawei headquarters.
Switchover Procedure Perform checks before a switchover. Perform a switchover only after all check results are normal. - Check that all modules of the redundancy UPCC are normal on the device panel.
- Check that all alarms are cleared on the redundancy UPCC.
- In the MML Command- USCDB windows of the active and redundancy UPCCs, run the following commands to check data consistency:
DSP MDBVERIFY: MDBVR=RUNR, UDT=STADATA; DSP MDBVERIFY: MDBVR=RUNR, UDT=DYNDATA; DSP MDBVERIFY: MDBVR=LASTFR, UDT=STADATA; DSP MDBVERIFY: MDBVR=LASTFR, UDT=DYNDATA; DSP MDBVERIFY: MDBVR=RUNR, UDT=GBLANDROUTEDATA; DSP MDBVERIFY: MDBVR=LASTFR, UDT=GBLANDROUTEDATA; If the value of InconsistentObjects in each record is less than 20, data is consistent. | 
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