One site upgrades NE40E. Single MPU cannot upgrade EPLD version (EPLD version cannot upgrade master MPU.). The slave MPU helps it upgrade. Early MPU has upgraded the latest version. The version of two MPUs does not match and has to return the version. Restart and copy large version of master MPU, license file and paf file to backup board. After restarting alarm on MPU is on. Check alarm log and it is found that "license and paf file mismatch present version".
The alarm log prompts "license and paf file mismatch the present version".
Re-load license file and paf to master/slave MPU from PC. Restart and there is no alarm.
1. It occurs "license and paf file mismatch present version" alarm. It is doubted that license file and paf file mismatch present version. Before the version returns, single MPU board upgrades and it is normal.
2. It is doubted that license file and paf file are destroyed.
3. It is required to load license file and paf file.
During the upgrade of 8090 product, backup early license file and paf file.