Blockchain Mechanism Based On Enhancing Consensus In Resources For Trusted Optical Networks

With the development of new technology and the increase of data capacity in networ-ks,the optical network,which carries more and more traffic,has a profound impact on the overall development of the Internet and has become a very important research topic in academia and industry.The traditional security trusted technology,which relies on building a thicker and thicker"wall",focuses on the use of access authentication and data encryption to achieve information security.However,it will be more effective and proactive to resolve network security risks from the perspective of management authentication.As a solution of distributed and trusted database,blockchain enables peer-to-peer transactions and collaboration in distributed systems where nodes do not need to trust each other,providing new solutions for creating a secure and trusted optical network.This topic focuses on the security and reliability requirements of optical networks,researches on network architecture and operation mechanism,and gives solutions based on blockchain technology.It designs technical solutiorns to the above problems and realizes the trusted optical networks.The performance is verified on the experimental simulation platform.The major contribution of this paper includes:Firstly,in terms of the need of secure and trusted optical networks,a trusted optical network architecture based on blokchain technology is proposed.By inserting a block layer between the control layer and the transport layer of the traditional optical network architecture,the solution effectively implements the control of the optical network resources,which not only ensures the trust of the resource information in the network,but also improves the security and reliability of the optical network.Secondly,in terms of performance burden caused by blockchain technology,blockchain mechanism based on partial enhancing consensus for trusted optical networks is proposed.On one hand,by adopting"Leadership Voting" which means that only part of nodes take part in consensus,the mechanism narrows the scope of network consensus.The result shows that the bandwidth occupancy rate of blockchain is reduced by 11 percentage points.On the other hand,it combines the consensus algorithm of PBFT and Raft that contribute to improve network consensus efficiency and the occupation of network resources at the same time.Thirdly,in terms of scalability burden caused by blokchain technology,blockchain mechanism based on partition enhancing consensus for trusted optical networks is proposed.On one hand,by adopting "Partition Voting"which means dividing the scope of consensus in a certain way,the mechanism improves network scalability and efficiency.The result shows that the bandwidth occupancy rate of blockchain is reduced by 19 percentage points.On the other hand,it also combines the consensus algorithm of PBFT and Raft that contribute to improve network consensus efficiency and the occupation of network resources at the same time.