Software-defined opportunistic network flow table updating method based on practical Byzantium fault-tolerant algorithm
A software-defined, Byzantine technology, applied in the computer field, can solve problems such as inconsistencies in flow table updates, and achieve reliable distribution and high fault tolerance
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[0028] The inventors of the present application found through a lot of practice that in software-defined opportunistic networks, behaviors such as routing switching, traffic monitoring, and load balancing are often performed frequently to change the network state, which requires changing the flow entry through the switch to differentiate the data packets. Processing, that is, SDN flow table update, replace the old rule flow table on several switches with the new rule flow table, which will produce two results, one is that the several switches all process the flow table entries according to the new rules or the old rules , the second is that some switches accepted the definition of the new rules, while the rules of other switches failed to be updated, resulting in inconsistent flow table updates.
[0029] Therefore, the present invention proposes to use the PBFT algorithm of the blockchain to solve the security problem of the update process of the flow table. The PBFT algorithm ...
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