Border Gateway Protocol (BGP) update

A BGP update is a message exchanged between internet routers to share information about the best paths for directing data across the internet. When network conditions change—such as a new route becoming available or an existing one failing—routers send updates to inform each other. These updates help ensure data takes the most efficient and reliable path to reach its destination. Think of it as a dynamic roadmap, where routers continuously share and adjust routes to keep internet traffic flowing smoothly and securely.