1) Fortinet's software-defined security framework provides security that integrates with underlying cloud and SDN platforms through virtual appliances, platform orchestration, and centralized management. 2) The framework allows for scale-out of virtual firewalls across hypervisors and auto-provisioning of firewall rules for workloads in public clouds. 3) Fortinet partners with VMware, Cisco, and OpenStack to provide security solutions that support virtualization, SDN controllers, and public cloud platforms.