Cisco 9800 Client session realtime deauth (8540s had enhanced traps).

[ciscoritz]

Cisco 9800 Client session data realtime (8540s had enhanced traps)

is there a way on the 9800s to gather realtime client session data when deauth trap (i dont see it working when enabled in the snmp wireless traps section.)

8540s had this (but i cant find this trap on the 9800s.)
CISCO-LWAPP-DOT11-CLIENT-MIB::ciscoLwappDot11ClientDeAuthenticatedTrap

im not sure if MDT will have a way realtime to stream per deauth action.  this method but this was Very powerful in realtime data collection 

it had 
cldcClientSSID
cldcClientWlanProfileName
cldcClientDataBytesSent
cldcClientDataBytesReceived
cldcClientIPAddress
cLAPGroupVlanName
cldcClientRSSI
cldcClientSNR
cldcClientMacAddress

[marce1000]

  - SNMP MIB support is limited on the 9800 w.r.t aireos ; check https://software.cisco.com/download/home/286322605/type/280775088/release/   for availability of the specific trap you mentioned

 M.

[Rich R]

It certainly supports the config:
9800(config)#trapflags client dot11 ?
assocfail Association Fail Trap
associate Association Trap
authenticate Client Moved To Run State Trap
authfail Authentication Fail Trap
deauthenticate Deauthentication Trap
disassociate Disassociation Trap

Are you saying you've configured it but the WLC doesn't send the trap? 
If so then open a TAC case and get TAC to raise a bug for it to get it fixed.