The Design of Kademlia System Base on Network Topology Matching

Structured P2P system doesn´t consider the actual physical topology when building the logical overlay, which would cause a serious mismatching between logical overlay network and physical network and affect the routing performance of the system. An advanced algorithm of K-bucket updating strategy base on structured Kademlia system was proposed. Using Landmark Binning algorithm and RTT detection will make physically neighboring node location be placed in the front-end query as far as possible. In the process of resources locating, the node firstly choose nodes in short distance for routing. So, the topology mismatching problem in structured Kademlia system will be effectively solved. Simulation tests indicate that the improved system enhance system´s routing performance obviously.