Load balancing problem with CSS11503

[mohsin.hussain]

Hello all,

We have two web servers that are being load balanced with this configuration on two CSS11503 with IOS version 7.20 Build 206;

content Web

add service web1

add service web2

vip address 10.1.4.4

protocol tcp

port 80

url "/*"

advanced-balance sticky-srcip-dstport

active

When we try and access the web servers from client workstation using the URL on Internet explorer 6.0 and get authenticated through the login window; we get error 12031. Error 12031 means " ERROR_INTERNET_CONNECTION_RESET The connection with the server has been reset. "

On refresh the error goes away.

If we bypass the content switches by accessing any of the servers using server name; the error does not appear. The problem seems to be related to the load balancing.

Any suggestions?

[pknoops]

Did you take a trace to see what is occuring. Does the server send a RST or redirect back to the client to initiate a new TCP connection ?

The CSS is simply forwarding back the response from the server..

Pete..

[skumar1969]

We use a tiny application called 'httpwatch' on the cleint PC. Its a pluggin gets added to the IE and can show the dns resolutions, http request/response codes,cookies information received, etc...

NB: I am not affliated to whvever making the product but I am just an end user.

[Gilles Dufour]

the problem is probably due to CSS sending an HTTP redirect with the RESET flag when you send multiple request inside the same connection.

To avoid the proble, do a 'no url' under your content rule.

There is absolutely no need to specify the url since you do stickyness based on source ip address.

Regards,

Gilles.