When birds migrate, they expend a huge amount of energy winging their way from one place to another, depending on sheer endurance to complete the journey safely. And so, it seems, it goes with with security managers faced with swapping out their gateway firewalls. Firewall migration for mid- to large-sized enterprises in particular appears to be a lengthy project indeed when organizations migrate from one vendor's firewall to another since by all accounts, firewall product design differs substantially. Our story this week looks at the topic.