User`s guide

Dimension ES-3024 Ethernet Switch
Introduction to CLI 25-17
COMMAND DESCRIPTION
config save
You can use the “config save” command to save 802.1Q, STP, Cluster
and IP configuration changes to non-volatile memory (Flash). These
changes are effective after you restart the switch.
However you cannot use “config save” for all other line command
configurations. These are saved in volatile memory (DRAM), so are not
effective after you restart the switch.