JES UWC Health check via Layer 7 Switch

In a typical JES Communications Suite installation, we install Communications Express (also known as UWC) to provide a web interface for Mail, Calendar and Address Books.

UWC is a Web Application running in a web server. And UWC is relying on the HTTP interface provided by the Messaging Server (not in web server but specific daemon: mshttpd) to display some pages.
Both processes are binding on the same IP address but UWC is using port 80 and mshttpd is using port 81.

The problem I'm facing is how to link these 2 applications in the N2120 configuration. Because if mshttpd is down, users are still redirecting to the running UWC on the same box but as mshttpd is not running, some pages (after login) cannot be displayed and the message displayed in the browser is "Bad Gateway. Processing of this request was delegated to a server not functioning properly".

To Do:

The problem lies in the fact that UWC returns a HTTP status code 200 OK. What you need to do is create a check that checks for a certain string,instead of the http status code.