What is Border Gateway Protocol?
Border Gateway Protocol (BGP) routing is the routing of Internet data and packets using the BGP protocol.
It enables communication and the exchange of routing information over the Internet and autonomous systems as well as the connection or communication between Internet Service Providers (ISP) or the external borders of corporate networks.
BGP routing uses information from available paths, path attributes and network routing policies implemented by the network administrators to route data / packets. Such path attributes support the BGP protocol in selecting the optimal path based on the prevailing conditions. BGP routing is considered to be one of the most important routing processes that enables data to be sent over the Internet.
BGP routing manages incoming and outgoing routing tables to store incoming and outgoing routing paths. Each time a routing process is initiated these tables are accessed to select a path / route.