Just ran into a strange issue when configuring a SNMP community on the web interface. Alas it was broken.

And clicking on “add’ results in an error

‘Access Error: Request Entity Too Large’
An easy fix is to stop being lazy and CLI into the switch and fix it.

The command:

snmp-server community public su 192.168.0.5

And look, it works for us. Now you can webconfig until your heart is content.

Don’t forget to write your switch config changes.

Reference: Dell 5424 CLI Manual, Page 328 ‘snmp-server community’