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luyenntk50db's avatar
luyenntk50db
Icon for Nimbostratus rankNimbostratus
Jan 20, 2014

show \log Ltm

I show log LTM display: ltm 01-21 08:54:38 err local/tmm tmm[5057]: http_process_state_prepend - Invalid action EV_INGRESS_DATA during ST_HTTP_PREPEND_HEADERS (Server side: vip=TCS_WL_VS profile=http...
Samir_Jha_52506's avatar
Samir_Jha_52506
Icon for Noctilucent rankNoctilucent
Jan 20, 2014

VS with an HTTP profile receives unexpected HTTP data, the BIG-IP system logs an error message. Common cause of this error message is an extra HTTP 100 Continue message, which may be included in a POST response by Microsoft Internet Information Services (IIS) version 6.0. To identify the specific cause of error messages, you must analyze the HTTP traffic with tools, such as tcpdump and Wireshark,

Please go through Link 

http://support.microsoft.com/kb/898708/en-us

To eliminate these messages on the standby BIG-IP system, disable connection mirroring for the affected virtual server.