FortiGSLB delivers quickly and securely. Applications everywhere. When designing and deploying internet-based solutions and services for enterprise and carrier networks, horizontal scalability is crucial. These organizations must be able quickly and easily to add new network resources and to deploy cloud-based apps to ensure business continuity and smooth disaster recovery in case of server or data center failure. These efforts can be slowed if the internet connectivity or security are not reliable. To meet these challenges, businesses often need to upgrade to more powerful hardware devices. These upgrades can be expensive and increase the total cost of ownership (TCO), without taking into account the issues of service availability and failover.