Delayed Instance - snmpget does not get it?

[Dave C <dav...@gm...>]

I have an AgentX sub agent and needed to add a delayed response to a GET
request whilst I perform some background processing. This is all 5.7.3.

Following this example.
http://www.net-snmp.org/dev/agent/delayed__instance_8c-example.html

In my normal GET handler I am setting
requests->delegated = 1;

Then setting up the delay (snmp_alarm_register) passing it the delegated
cashe.

Finally returning SNMP_ERR_NOERROR; back to snmpd

On the remote side I am calling snmpget to fetch the OID in question. I can
see from a pcap that my agent responds ( I presume with some kind of
deferral notification) But snmpget immediately sends the same GET request.
So my handler is getting hammered even though I told it to delegate?

I'm getting about 16 such duplicate GET's before the timer I setup runs out
(2 seconds). It seems I've created something of an infinite loop here, but
I'm not able to distinguish 'duplicate' packets from the real ones in my
handler?

Any ideas on where to look?

Thanks

Dave