ACE4710 - dummy user as PROBE

GIULIO FAINI — Mon, 23 Jan 2012 14:55:33 GMT

hello,

We are doing Load balancing of MS ISA servers SSL ActiveSynch and from time to time they go down for reasons not known yet.

We configured a TCP/443 probe which does not fail when these ISA server go down and consequentially we have FAILED connections in the user base.

The idea would be to configure a PROBE in the ACE which uses a dummy user with password and logs via HTTPS activesynch in the backend ISA server to be sure that the server is really UP.

Is this possible in ACE? I couldnt see it in CCO.

Thanks for your help.

Giulio.

ACE4710 - dummy user as PROBE

Borys Berlog — Tue, 24 Jan 2012 14:42:11 GMT

Hi Giulio

There is a possibility to write probes in TCL and use them. I'm not good at it so won't give you an example from the top of head, but as an idea you may considere such approach (if your application can change behavior in case if it's failed, or you can track it via some webpage) :

- configure not TCP /443 probe but configure https probe and request some webpage and then either parse reply for some string or just specify expected HTTP response code.

topic ACE4710 - dummy user as PROBE in Application Networking

ACE4710 - dummy user as PROBE

ACE4710 - dummy user as PROBE