Allied Telesis AT-S60 - Manual (Page 726)

Chapter 40: SNMPv3 Protocol
Section VI: Web Browser Management 726
NonVolatile
Select this storage type if you want the ability to save an entry in
the Notify Table to the configuration file. After making changes to
an Notify Table entry with a NonVolatile storage type, Save
Changes appears on the Configuration Tab.
Note
The Row Status parameter is a read-only field in the Web interface.
The Active value indicates the SNMPv3 Notify Table entry takes
effect immediately.
8. Click Apply to update the SNMPv3 Notify Table.
9. To save your changes, return to the General Tab and click Save
Changes.