The network security forecast is cloudy, and that’s not a bad thing if you’re to believe what analysts are saying at this week’s Gartner IT Security Summit. Gartner predicts that by 2008, carriers like AT&T, Verizon, MCI and others will operationalize security functions like firewalls and intrusion detection into routers and switches, leaving enterprises to concentrate on identity and access management and other security duties away from the perimeter.