A networking technique that announces the same IP prefix from multiple locations to improve latency, redundancy, and traffic distribution
Anycast is a networking technique where the same IP prefix is announced from multiple physical locations. Traffic destined for that prefix is automatically routed to the nearest location according to BGP routing policies, improving latency, redundancy, and load distribution. Implementing anycast requires running instances or services in multiple geographic locations and advertising the same IP prefixes from each site using BGP (Border Gateway Protocol).
With Vultr, you can implement anycast by deploying instances in multiple data center locations and establishing BGP sessions from each instance or location. Each instance advertises the same prefix into Vultr’s network, allowing inbound traffic to be dynamically routed to the closest available instance.