Website is not loading fully sometime

Hi mithuuu85,

What TCP profile you use ? (tcp, tcp-lan-optimized, tcp-progressive and so on) and what tunning did you make on the TCP Profile ?

Hi,

Initially i have used default TCP profile "TCP" , Then used TCP-wan-optimized, TCP-Lan-Optimized and F5-TCP-Mobile profile are used but none of them worked,then we configured custom TCP profile by increasing "Zero window timeout" and "Retransmit threashold" value but no luck.

You have only shown your observations of the traffic between F5 and the back-end application servers. What were the characteristics of the traffic between your client and F5?

HI,

Below are the Packet observed between Client to F5 and to server during the issue occurrence time.

1) Server responses with TCP Window Full

2) Then F5 respond back with TCP Zero Window from self-ip

3) we can see RST which is PSH ACK from the virtual server to the client

4) Then self-ip resets the connection to pool member due to rst from client.

Also we observed if the page was not loading fully and if we do some changes on the Virtual server after that page will open properly looks like new session/Cache clearing will make to work again.

This issue is not coming when we bypass the F5, It is working perfectly fine without any problem .

I am afraid this description is not clear/detailed enough to show what is really happening in the traffic of the client <-> F5, and F5 <-> app server.

HI ,

I can attach the packet capture file , Please go through that and feedback your comment on this issue.

Hi ,

AM facing issue to upload log file in zip format, Is there any way to share the packet capture logs to you, please update

Hi,

Attached the screenshot of the Wireshark window.

Hi,

Attached the screenshot for wireshark window

Hi,

Below are the details about the IP address.

Client IP - 10.1.2.80

VIP IP - 10.1.221.150

Self IP - 10.1.221.85

Server IP - 10.1.221.152