SNMP traps from Cisco wlc 5508

SNMP traps from Cisco wlc 5508

Hello!
I have a Cisco wireless controller (5508). This box is sending snmp traps to OPmanager. I want these traps to generate alarms in opmanager when ap's go down. One alarm for each ap. So far so Good.  I get this to work with one ap but if several ap's goes down there still be only one alarm (for the last ap that go down). 

I am using the mib airespace-wireless-mib and use the bsnapDisassociated and bnsapassociated traps to do this.

How can i use this traps to understand that it is different ap's so i get one alarm for each?
 
Forgot to mention that we are running OPmanager version 8811

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