BGP is border gateway protocol Gateway Protocol is a routing protocol used to connect independent systems on the Internet. BGP is mainly used for interconnection between Internet AS (autonomous systems). The main function of BGP is to control the propagation of routes and select the best route. Compared with the traditional dual IP dual line technology, the machine room using BGP technology can choose the optimal path for both the upstream and downstream routes of the server, so it can really realize high-speed single IP high-speed access. In addition, BGP has the characteristics of redundant backup and ring elimination, and will automatically switch to other normal lines when one line has problems.
To make a simple analogy, when you travel to Shanghai (website) on business, you can choose roads (telecommunications), planes (China Unicom), high-speed rail (mobile) and other ways. BGP is like an intelligent app, which can help users choose the best form of transportation, and can automatically help users choose the best way of transportation in case of temporary problems.
For the computer room, it is a centralized place for servers. Professional managers protect the system, so that the server can provide better services for users.
BGP is a border gateway protocol, and the competition in the domestic market is increasingly fierce. If you don't know much about this field, it is common to be cheated. The real BGP room is more systematic and scientific in line management.) It is a routing protocol that dynamically exchanges routing information between autonomous systems. The classic definition of an autonomous system is a group of routers under the control of a management organization, which uses IGP and general indicators to forward messages to other autonomous systems.
Network information can be easily transferred between BGP systems. Today, big data pays more attention to this way of information transmission. Border gateway protocol is an external gateway protocol used for communication between routers in different autonomous systems. It is a substitute for EGP. The reachable information of the network is exchanged between BGP systems. This information includes all the paths that data in the autonomous system AS must go through to reach these networks. Based on this information, an autonomous system link map is constructed, and then the routing ring is deleted according to the link map, and the routing strategy is formulated.
