Mark_Curole
Jul 01, 2011Nimbostratus
Strange F5 Reset
I have a VIP for a simple two member load balancing pool. The origin server are doing SOAP over HTTP. I am having clients occasionally get resets from BigIp in the middle of a transation (see trace below).
The reset occurs when the client does not wait for a 100-continue response before sending the main SOAP request. I am unsure if this is a client issue or a configuration issue on the BigIp.
Sample trace
12665 0.0000000 192.168.252.108 172.31.230.91 HTTP HTTP:Request, POST /VdrSearchAndRetrieve/TCISAR, Query:wsdl
12666 0.0000810 172.31.230.91 192.168.252.108 TCP TCP:Flags=...A...., SrcPort=HTTP Alternate(8080), DstPort=56253, PayloadLen=0, Seq=2776800385, Ack=573228503, Win=65535
12667 0.3530350 192.168.252.108 172.31.230.91 SOAP SOAP:xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"
12668 0.0000240 172.31.230.91 192.168.252.108 TCP TCP:Flags=...A...., SrcPort=HTTP Alternate(8080), DstPort=56253, PayloadLen=0, Seq=2776800385, Ack=573229692, Win=65535
12824 5.6066480 172.31.230.91 192.168.252.108 TCP TCP:Flags=...A.R.., SrcPort=HTTP Alternate(8080), DstPort=56253, PayloadLen=0, Seq=2776800385, Ack=573229692, Win=65535
VIP Configuration
virtual server {
snatpool snatpool1
pool server_pool
destination 172.31.230.91:webcache
ip protocol tcp
profiles
http
oneconnect
tcp-lan-optimized
persist src-addr-persist-300
}