Eigrp routes not updating
The BGP defines the messages that each peer should exchange in order to change the session from one state to another. In the "Idle" state, BGP initializes all resources, refuses all inbound BGP connection attempts and initiates a TCP connection to the peer. In the "Connect" state, the router waits for the TCP connection to complete and transitions to the "Open Sent" state if successful.
If unsuccessful, it starts the Connect Retry timer and transitions to the "Active" state upon expiration.
Other deployment topologies are also possible, such as running e BGP peering inside a VPN tunnel, allowing two remote sites to exchange routing information in a secure and isolated manner.
The main difference between i BGP and e BGP peering is in the way routes that were received from one peer are propagated to other peers.
During the peering handshake, when OPEN messages are exchanged, BGP speakers can negotiate are negotiated at the time of creation, the BGP speaker can prefix the Network Layer Reachability Information (NLRI) it advertises with an address family prefix.In contrast, the Internet application of the protocol may be referred to as Exterior Border Gateway Protocol, External BGP, or e BGP.after progressing through 20 drafts from documents based on RFC 1771 version 4.These families include the IPv4 (default), IPv6, IPv4/IPv6 Virtual Private Networks and multicast BGP.Increasingly, BGP is used as a generalized signaling protocol to carry information about routes that may not be part of the global Internet, such as VPNs.
When it runs between different autonomous systems, it is called External BGP (e BGP or Exterior Border Gateway Protocol).