I have been working on an embedded linux system for about a year now that includes net-snmp for the Agent running on the device. I added net-snmp toward the beginning of the project life-cycle when I did not understand the protocol that well so I may have been using it in weird ways. I created a couple of custom MIB’s for product specific values and whenever a packet was sent to the device, I had the agent write to a shared memory those specific values, in effect, acting as a database for other small applications running on the device to read and write to and get the changed configuration values.