anyway to notify the events with iControl?

The Notification API (Management.EventNotification and EventSubscription) can be used to be notified when configuration changes occur (node up/down, pool added/deleted, etc) but does not include statistics threshold triggers like you are asking for.

 

 

Really the only way right now is to use a polling method where you have a client application "asking" the BIG-IP for object statistics.

 

 

As for knowing when an event occurred, for counters, that's easy as if the counter is above your threshold when you query it, you'll know it's occurred. For values like current connections/cpu usage, that's not possible as the values may be below the threshold that you specified.

 

 

There may be something you could do with a local script and SNMP traps but I'm not sure what the overhead of that would be nor would I know how to recommend setting it up.

 

 

I know you said you don't want to have to poll, but for statistics right now, that's your only real viable option.

 

 

-Joe