What are the features of BGP Protocol? How it is different to other protocol

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Border Gateway Protocol is the core routing protocol .It works by maintaining a table of IP networks, which designate network reach ability among autonomous systems (AS). It is described as a path vector protocol BGP does not use traditional IGP metrics, but makes routing decisions based on path, network policies, and/or rule sets. BGP replace the EGP routing protocol to allow fully decentralized routing in order to allow the removal of the NSFNet internet backbone network.
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