POSSIBLE DEBUG COMMANDS? HELP TOOLS?

[mbaylis]

We are currently experiencing session timeout problems with our oracle collaboration suite applications. We are using 2 x CSS11503 to load balance 2 VIP groups, using the one armed topology. The problem is very intermittent. When users are first signing on, or during an activity.

Are they any debug commands or help tools that we could use to prove that the load balancers are doing they job. The only command that looks effective is the "show flows", but as you can imagine, trying to trace a flow through hundreds of others is a problem.

We suspect it may have been a problem with stickyness, we were running level 3 stickyness but since changed this to level 4/5 (ip address & dst port). The sticky timeout is set to 20 mins (which oracle recommended)

Can anyone help with this? Any comments may be of help

Thanks in advance

[Gilles Dufour]

there is no debug you can use as this would kill the box.

The only tool is a good sniffer.

Try to capture all your traffic and find which flow is having an issue.

Most of the time this is an idle timeout problem.

The CSS is very agressive and will reject connections that stay idle even a short time like 8sec.

A solution you can try to implement [if you don't want to first capture a sniffer trace], is to configure a 'flow-timeout-multiplier' under the content rule for which you have problems.

Try to set a value of 20 and increase it if necessary.

Regards,

Gilles.

Thanks for rating this answer

[mbaylis]

Hi Giles, thanks for the reply.

I will try the possible solutions you have given.

Are they any other show commands that can be used for analysis purposes?

Thanks