Hi,
we got several errors in our ltm logs as following:
local/tmm1 err tmm1[6472]: 011f0007:3: http_process_state_prepend - Invalid action EV_INGRESS_DATA during ST_HTTP_PREPEND_HE...
I have to apologize...the solution id I was referring to is sol5922 (Error Message: http_process_state_prepend - Invalid action EV_INGRESS_DATA during ST_HTTP_PREPEND_HEADERS) and it is related to tmm errors triggered by rfc violations in the web applications.
Our application environment is quite complex and developers are not aware of the logic applied by bigip (apps are generally tested outside the balancer structure). So would be very useful to be able to track these errors during runtime and provide logs about them...