Global Server Load Balancing (GSLB) is typically used to provide data center fail-over or to enhance end user performance by directing users to their closest data centers using geolocation. GSLB is a DNS based system that manipulates the DNS response based on the availability and performance profile of the data centers.
Run two data centers in an Active-Passive architecture so that if one data center fails, traffic will be sent to the other.
Distribute traffic between multiple data centers in an Active-Active architecture based on specific criteria including: fixed weight, round robin, data center health check, geolocation of the client etc.
Easily migrate live workloads between multiple clouds or run a hybrid cloud setup in active-active or active-passive.