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With the growing adoption of Distributed Ledger Technologies and thesubsequent scaling of these networks, there is an inherent need for efficientand resilient communication used by the underlying consensus and replicationmechanisms. While resilient and efficient communication is one of the mainpillars of an efficient blockchain network as a whole, the Distributed LedgerTechnology is still relatively new and the task of scaling these networks hascome with its own challenges towards ensuring these goals. New contentdistribution concepts like Information Centric Networking, of which Named DataNetworking is a worthy example, create new possibilities towards achieving thisgoal, through in-network caching or built-in native multicasting, for example.We present and evaluate XRP-NDN Overlay, a solution for increasing thecommunication efficiency for consensus-validation based blockchains like theXRP Ledger. We experiment by sending the XRP Ledger consensus messages overdifferent Named Data Networking communication models and prove that our chosenmodel lowers the number of messages at node level to minimum necessary, whilemaintaining or improving blockchain performance by leveraging the possibilitiesoffered by an overlay such as specific communication mechanisms.

XRP-NDN Overlay: Improving the Communication Efficiency of Consensus-Validation based Blockchains with an NDN Overlay