Only dual stack installations with PI and MI possible in the future?

[former_member184588]

Hello,

I am just really confused about a thing that I was just reading.

In the installation guide for SAP NW 7.0 including EhP 1 there is written down that new dual stack systems only for SAP NetWeaver PI and SP NW MI (page 10).

- So is it true that there will be no dual stack installations possible if you are not using MI or PI?

- Does this mean that I have to decide if I want to use Java OR ABAP (or will there even be no ABAP Portal)

- If yes, how should I present my web dynpro 4 ABAP applications if I choosed a Portal with Java flavour?

-> Do I need another server for the WD4A-apps and connect this to the portal as a kind of presentation-layer-server?

Can someone see a strategy in this?

Thanks and sorry for the confused questions,

Vanessa

[chintan_virani · Accepted solution]

Vanessa,

I will need to check regarding first two questions but for last two questions here is my understanding.

WD ABAP applciations require an AS ABAP server and it will not require J2EE engine for deployment.

So ideally if you have a AS JAVA only portal and AS ABAP only ECC you can develop applcaitions in WD ABAP which will be deployed on AS ABAP of ECC and you can still create WD ABAP iViews in your AS JAVA only Portal.

Chintan

[former_member184588 · Accepted solution]

>

> So ideally if you have a AS JAVA only portal and AS ABAP only ECC you can develop applcaitions in WD ABAP which will be deployed on AS ABAP of ECC and you can still create WD ABAP iViews in your AS JAVA only Portal.
> Chintan

Hello and thank you very much for your response. Am I right thinking that this will led to the neccessarity to open the firewalls between the internet and our backend systems in order to see the content of the web dynpro abap iview?

Thx, Vanessa

[Former Member · Accepted solution]

> Am I right thinking that this will led to the neccessarity to open the firewalls between the internet and our backend systems in order to see the content of the web dynpro abap iview?

Yes and no. If you will develop your webdynpro abap on the backend server than you will have to open the firewall. This is, of course, not recommended, and not allowed in most places. Your should develop the front-end on a server in the internet facing part of your network. It can be done in abap or in java as you please. In both cases the connection to the beck-end system is done with rfc calls.

[Former Member]

Hi,

You also can install webdispatcher for you back end system. so you only need to publish this machine in stead of the back end system.

Best Regards

Fernand

[former_member184588]

Hello and thanks for your answers,

could you please get a little bit more into detail how to configure the web dispatcher in order to get things working? We started to use the web dispatcher but how to do it. How to handle the different ports. Can I use a different port in the backend system (like 8443) and the frontend system is doing as if the backend system uses 443?

thx, Vanessa

[Former Member]

Here is [documentation on configuring web dispatcher|http://help.sap.com/saphelp_nw70/helpdata/EN/42/5cfd3b0e59774ee10000000a114084/frameset.htm].

The web dispatcher works as a reverse proxy. So you can configure it to responde on port 443 and to connect to the backend on different port.

[former_member184588]

Hello,

are there any news regarding this topic?

Thx, Vanessa