Web Server /App Server combination

[Srihari Injeti]

Hi ,
We currently have an application that is deployed on IPlanet webserver. There is no App Server. We are thinking of getting an App Server into the picture. I havent worked with Web Server/App Server combination before. What would be the procedure to migrate a web application from a web server to an webserver/App server combination. I want to know typically what part goes into the web server and what goes into the app server and how is the communication established.
If any one knows about a resource or a simple example it would be very helpful
Thanks in advance.

[Jim Yingst]

I'm transferring this to our new iPlanet forum...

[sridhar satuloori]

You can directly migrate all the j2ee war files directly into any j2ee complaint appserver.
Distributing the apllications between AppServer and webserver is the best idea. Deploy JSp/Servlets which doesnt need any transaction, failover, loadbalance into webserver and rest of them into appserver
Sridhar