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Problem Description
In a bureau, OSN3500 equipment upgraded the host software (5.21.13.47P01 -> 5.21.18.50P01), and after the upgrade was activated, one of the SSN1GSCC01 master boards repeatedly reset continuously and could not come online.
Warning MessageAfter fast blinking of the PROG indicator of the single board (software loading), the single board can not come online and run, the single board reset and repeat the process.
Processing1, the problem SSN1GSCC01 main control board dial code into 5 state, 0b0101, that is, BIOS hold state, the main control board will be inserted into the empty subrack.
2, at this time the SSN1GSCC01 main control board's IP is 129.9.0.5, through the Navigator connection to enter the main control of the BIOS running state, send :e-db command to delete the database.
3、Restore the SSN1GSCC01 main control board dial code 0b0000, the main control can start and run normally.
Note: The database of the master control has been deleted, and the configuration data information is empty.
2, at this time the SSN1GSCC01 main control board's IP is 129.9.0.5, through the Navigator connection to enter the main control of the BIOS running state, send :e-db command to delete the database.
3、Restore the SSN1GSCC01 main control board dial code 0b0000, the main control can start and run normally.
Note: The database of the master control has been deleted, and the configuration data information is empty.
Root CauseThe database structure is inconsistent, resulting in the failure of database verification after startup and repeated reset of the device.
Recommendations and SummaryNone
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