Traffic Manager gives you three traffic load balancing methods to choose from: failover, performance, or weighted round robin. You choose the one that’s right for your application or scenario.
Traffic Manager can improve the availability of important applications by monitoring your Azure or external sites and services and automatically directing users to a new location anytime there’s a failure.
Traffic Manager is designed to make applications more responsive and improve content delivery times by directing users to an Azure or external location with the lowest network latency.
Traffic Manager can direct user traffic to distribute it across multiple locations, such as multiple cloud services within an Azure datacenter or multiple Azure websites in different datacenters. Traffic Manager can use either equal or weighted load distribution.
Traffic Manager is also a popular option for on-premises scenarios including "burst-to-cloud,” "migrate-to-cloud," or "failover-to-cloud." Use it to upgrade or perform maintenance on your on-site datacenter without inconveniencing customers.