Anycastkiszolgálás

Anycastkiszolgálás refers to a network addressing and routing scheme where multiple servers share the same IP address. When a client makes a request to this IP address, the network infrastructure directs the request to the server that is geographically closest to the client, or offers the lowest latency. This differs from unicast, where a request is sent to a single, specific server, and multicast, where a request is sent to a group of recipients.

The primary benefit of anycastkiszolgálás is improved performance and reliability. By directing users to the nearest server, latency is reduced, leading to faster response times. In the event of a server failure or network congestion at one location, traffic can automatically be rerouted to a different, available server without interrupting service. This makes anycast an ideal solution for content delivery networks (CDNs), DNS root servers, and other services that require high availability and low latency for a global user base. Implementing anycast involves configuring network routers to advertise the same IP address from multiple points of presence. The routing protocols then determine the optimal path to deliver the request.