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Turning on APPN in VTAM V4R4

I have 2 mainframes with separate NETID's. Each mainframe has its own CIP. I currently send MSNF data from mainframe to mainframe using a FEP on each mainframe. I would like to get my MSNF traffic to use my CIP interfaces. I was told that I could turn on APPN on VTAM if I am running version V4R4. Once APPN is on, I can configure the CIP's as APPN nodes.

My question is:

When I turn on APPN on VTAM, will it cause any problems with the currently running SNI connections, RJE connections, or any other NCP connections.


Re: Turning on APPN in VTAM V4R4

Since there has been no response to your post, it appears to be either too complex or too rare an issue for other forum members to assist you. If you don't get a suitable response to your post, you may wish to review our resources at the online Technical Assistance Center ( or speak with a TAC engineer. You can open a TAC case online at

If anyone else in the forum has some advice, please reply to this thread.

Thank you for posting.

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