Forum Discussion
keven_Wang_1124
Nimbostratus
NimbostratusWill BigIP automaticly close TCP session after a HTTP request
Hi all,
I write a iRules and find that when a client sends a HTTP request to BigIP, after BigIP sends response, the status of client is CLISE_WAIT and client receives a "FIN ACK" message (I never close TCP session at client side).Dose it mesn that BigIP will close the TCP session automaticly after it send response? Thanks!
- Yes, that's the default behavior of BIG-IP in general, not just via iRules.
After the response has been sent, and the system thinks the transmission is complete, it will close the connection.
-Colin - Actually, the longer answer is that it depends. If the client request is HTTP/1.0 and includes a Connection: Keep-Alive header, then BIG-IP will not close the connection. Similarly, if the client request is HTTP/1.1 and does not include a Connection: close header, then BIG-IP will not close the connection. However, if the server returns a Connection: close response header, then BIG-IP will propagate the close unless OneConnect transformations are configured. There are some subtle issues with certain status codes and early shutdowns, but that's the basic idea.
keven_Wang_1124Yes, I have configured oneconnect profile and now the TCP session is not closed.Thanks very much.
