Just got a request to explore SNA as an option for some project. The only thing is that I'm not very familiar with it. I only understand that SNA is session based, similar to a modem session, where data flow is committed to one path or tunnel. I don't see any advantages to this over TCP/IP, except maybe over long distances. The obvious disadvantage being that it is controlled by IBM, I think. SAA is the SNA protocol? Am I completely wrong? Can someone please enlighten me.