Oh good job, it's working on my N2000 and N4000

$ snmpset -v 2c -c mycommunity myIP DNOS-SWITCHING-MIB::agentSaveConfig.0 i 1
DNOS-SWITCHING-MIB::agentSaveConfig.0 = INTEGER: enable(1)


Cordialement,
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Ludovic Vinsonnaud - Ingénieur Réseau
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Institut Optique Graduate School
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Le 07/02/2019 à 09:22, Morten Brekkevold a écrit :
On Wed, 6 Feb 2019 14:29:59 +0100 Vinsonnaud Ludovic <ludovic.vinsonnaud@institutoptique.fr> wrote:

In fact, this table doesn't seem to exist with snmpwalk
Dell-LAN-SYSMNG-MIB::dellLanFileActionTable = No Such Object available on this
agent at this OID
Urgh. Seems like you're not the only one with that experience:

https://www.reddit.com/r/sysadmin/comments/7t6bhe/only_some_snmp_mibs_available_on_dell_n1548/

According to this, however, there may be an alternative ways you can
try.

This is someone who fails at the exact same operation (but then proceeds
to do something that looks like a network write, instead of writing
startup-config, using another MIB):

https://www.dell.com/community/Networking-General/PowerConnect-62XX-copy-files-using-snmp/td-p/3144320

I also found this in DNOS-SWITCHING-MIB:

|  agentSaveConfig OBJECT-TYPE
|      SYNTAX      INTEGER {
|                  enable(1),
|                  disable(2)
|               }
|      MAX-ACCESS  read-write
|      STATUS      current
|      DESCRIPTION
|                  "enable(1) will initiate an configuration save to nvram.
|
|                  Status is returned by the object agentSaveConfigStatus."
|      ::= { agentSystemGroup 1 }

That could be something worth investigating.