Border Gateway Protocol (BGP):
• An inter-autonomous system routing protocol, which is used while routing a packet across multiple autonomous system is said to be known as Border gateway protocol.
• It is a routing protocol used to transfer data and information between different host gateways, the internet or autonomous system.
• The management of how packets are routed across the internet through the exchange of routing and reachability information between edge routers are done by the Border Gateway Protocol.
• It directs the packets of information between autonomous systems managed by a service provider.
• The two main responsibilities of the BGP protocol are as follows:
• Obtain the prefix reachability information from the neighbour autonomous systems.
• To find the best route by sending the prefix information.
In Border Gateway Protocol:
• Between BGP protocols, the protocol establishes before sending the new path to neighbors, it must advertise the path from its neighbors underlying connection.
• By adding the identity to the received path, while sending the new path to its neighbors, it will help the neighbors not only to know the existence of the routers but to know the path of the autonomous system that leads to the destination.
Therefore, the statement “When a BGP router receives an advertised path from its neighbor, it must add its own identity to the received path and then send that new path on to all of its neighbors” is true.
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