AT&T is hoping to coax its users towards IP and ditch IBM's global Frame Relay network.
About 70 per cent of business data traffic is currently held on mainframe computers using IBM's SNA (system network architecture). AT&T is pushing its users to move towards IP with the launch of its SNA-to-IP managed migration service in Europe.
Announced last week, this will allow users of IBM's global Frame Relay network to run their SNA-based applications on an IP-based VPN instead.
Jeff Ace, director of business operations at AT&T's network services arm, said: "Users can keep their investments in legacy SNA applications but they can still benefit from IP."
Neil Rickard, analyst at Gartner Group, said: "Large companies are nervous about sticking to SNA at this stage, especially as IBM appears to be moving away from this technology. IP will open up their networks to ecommerce."
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