Definition - What does Anycast mean?
Techopedia explains Anycast
The Anycast method is one address and routing methodology contrasted with others such as unicasting. Unicast uses a one-to-one connection between a server and a destination address. Other methodologies like multicast and broadcast send signals from one point to several points.
Anycasting is governed by the Border Gateway Protocol (BGP) and used in both IPv4 and IPv6, with transitioning tools in place. It has its own security questions that analysts look at as they decide how to route network traffic.
Some experts claim that Anycast’s mirroring of DNS services can be a way to survive different kinds of cyber attacks where hackers try to get access to platforms through hijacking network traffic. Some also point out that anycast has automatic failover, which promotes fault tolerance and emergency management.
Experts also talk about load-balancing logic involved in anycast systems that can also improve network capacity or performance.
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