Allied Telesis AT-S63 - Manual (Page 405)

AT-S63 Management Software Menus Interface User’s Guide
Section II: Advanced Features 405
N-NonVolatile
Select this storage type if you want the ability to save an entry in
the SNMPv3 Target Parameters Table to the configuration file.
After making changes to an SNMPv3 Target Parameters Table
entry with a NonVolatile storage type, the S - Save Configuration
Changes option appears on the Main Menu, allowing you to save
your changes. Allied Telesyn recommends this storage type.
7. After making changes, type R until you return to the Main Menu. Then
type S to select Save Configuration Changes.