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MicroNugget: BGP Configuration Explained | CBT Nuggets

Start learning cybersecurity with CBT Nuggets. https://courses.cbt.gg/security In this video, CBT Nuggets trainer Keith Barker provides a brief overview of how the Internet works together with BGP (Border Gateway Protocol), and how BGP chooses the best route when presented with multiple paths. Learn more about how BGP works to get started on BGP configuration. We can all give thanks to BGP, which makes important forwarding decisions to choose routes, for the entire Internet. This happens because entire clouds of networks receive autonomous system numbers (ASNs), and get addresses distributed amongst them. The Internet Assigned Numbers Authority is responsible for managing all the IPv4 and IPv6 addresses. Regional Internet Registries handle the many requests that are generated by service providers to gain additional addresses. With those blocks of addresses, enterprises can subnet and rent them out to customers. After a company takes those addresses and makes those routes and subnets, BGP comes in to advertise the routes to neighbors. Those advertisements get propagated across the entire Internet. But when an AS learns that there are two different routes to get to a given network, it has to determine its path. Fortunately, the address itself includes how many hops were necessary to reach the end. So the router just has to choose the one with the fewest hops. 0:20: An overview of what BGP does and how it chooses its routes 1:30: The relationship between IANA and RIR 2:35: BGP's job advertising routes 3:40: How BGP chooses a route between options 4:55: Live demonstration of the determination process 🌐 Download the Free Ultimate Networking Cert Guide: https://blog.cbt.gg/gus4 ⬇️ 13-Week Study Plan: CCNA (200-301): https://blog.cbt.gg/9m0k Start learning with CBT Nuggets: • Border Gateway Protocol (BGP) | https://courses.cbt.gg/gda • Juniper BGP | https://courses.cbt.gg/xgq • TCP/IP IPv4 | https://courses.cbt.gg/m8f