![]() ![]() In the Active state, the router resets the ConnectRetry timer to zero and returns to the Connect state. If unsuccessful, it resets the ConnectRetry timer and transitions to the Active state upon expiration. In this state, the router waits for the connection to complete and transitions to the OpenSent state if successful. In this state, BGP initializes resources, and refuses inbound connection attempts, and initiates a connection to the peer. ![]() ![]() The BGP protocol determines the messages that are sent to peers in order to change their state. Each peer connection in the network maintains one of these states. In the network, each BGP node is a peer, and uses a finite state machine, with one of six states Idle, Connect, Active, OpenSent, OpenConfirm, and Established. It maintains a table to determine the reachability of hosts from a given node, and made the internet truly decentralized. BGP is a protocol which backs the the core routing decisions on the internet. ![]()
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