I used the built-in MIB Expression ifOutDiscards (com.hp.nms.mibexpr.ifoutdiscards) based on the RFC1213 to poll automatically a node group and track down if some interfaces are generating discards.
OID : .126.96.36.199.188.8.131.52.1.19
When I use the expression against a node via Action > Graph MIB Expression, I can successfully see some interfaces generating discards (Screenshot2241.jpg)
I created then a custome poller collection and define some tresholds in it (see attachment Screenshot2247.jpg).
Finally I created a customer poller policy (see attachment Screenshot2248.jpg)
When I launch the collection of data I get always the same error (Screenshot2250.jpg)
Using the MIB Browser I can successfully interrogate these values (Screenshot2261.jpg)
I don't get why this is not working, maybe I did a mistake in the custom poller configuration...
Any help would be greatly appreciated... :-)