AI to solve networking problems

Take a look at this excellent article on CodeProject. It describes the use of Ant Colony Optimisation algorithm for network load balancing.
Ever since I took the Anat Bremler-Barr's Advanced Networking course I've had the feeling AI algorithms could significantly help networking problems (not only routing, also various network attack detections for example). I've always been more attracted by Machine Learning algorithms rather than Ant and the like, but still, it's in the good direction...