Forum Discussion
CirrostratusTCP keep Alive Reset
I have a F5 LTM VIP with the below config
Vitrual test{ destination 6.6.6.6:9041 ip-protocol tcp persist { source_addr{ default yes} } pool test profiles{ test_9041{} } snat automap }
ltm profile tcp test_9041{ app-service noce defaults from tcp-lan-optimized keep-alive-interval 60 }
When i telnet to the above VIP, the connection is reset after 60 seconds, this started happening soon after i implemented the keep alive interval for 60 seconds
The Question is why is the connection reset after 60 seconds, even though the idle-time-out setting is default for 300 seconds So ideally the telnet connection should be reset only after 300 seconds, correct??
6 Replies
Cory_50405Noctilucent
Correct, unless your server is resetting the connection. Can you do a packet capture on the server side and see if the server is sending the reset?
AneshI forgot to mention I am doing a telnet to a https port. Is it because the port expects a ssl handshake??
- Cory_50405
Correct. You are encountering the SSL handshake timeout. You can modify it however you see fit:
http://support.f5.com/kb/en-us/solutions/public/13000/800/sol13834.html
- Anesh
But this VIP is SSL passthrough and does not use any SSL profiles
PK_BhatiaNimbostratus
I am not sure if you tried persistence profile or not, if not you may try looking into it.
- Anesh
I am using source ip persistence, and i dont think it is a persistence issue, since i see the record in the persistence table even after the connection is removed from the connection table after 60 seconds.
