13.1 User add ............................................................................................................................. 44
13.2 User query .......................................................................................................................... 44
13.3 User delete ......................................................................................................................... 44
14. System upgrade and backup.................................................................................................. 44
14.1 Introduction to system upgrade ....................................................................................... 44
14.2 System upgrade................................................................................................................. 45
14.2.1 Environmental construction .................................................................................. 45
14.2.2 Software upgrade ................................................................................................... 46
14.3 Configuration file backup and load ................................................................................. 47
14.3.1 Configuration file backup....................................................................................... 47
14.3.2 Load profile.............................................................................................................. 48
14.3.3 Saving configuration .............................................................................................. 48
15.SNMP configuration ................................................................................................................... 49
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