Question

Your company runs an identical stateless API deployment behind a Standard public Load Balancer in both East US and West Europe. You need a single, static anycast IP address that automatically routes client TCP connections to the closest healthy regional deployment and provides failover if an entire region becomes unavailable. The solution must operate at Layer 4 and require minimal changes to the existing regional load balancers. What should you deploy?

Accepted Answer

A cross-region (Global tier) Standard Load Balancer with the two regional load balancers added to its backend pool

Answer

An Azure Traffic Manager profile using the Performance routing method with the two public IPs as endpoints

Answer

An Azure Front Door Standard profile with the two regions configured as origins

Answer

An Azure Application Gateway v2 with a multi-region backend pool and zone redundancy