Research And Design Of Intelligent Routing In Multi Protocol Network Environment

With the rapid development of the Internet of things,a large number of different types of network protocols and network resources have emerged,including many wired and wireless networks protocols in different fields such as industrial Internet of things,heaven earth integration network,satellite network and Ocean network.For example,SRv6 in the new Internet,Lo Ra in the industrial Internet of things,5G in the mobile communication network and other protocols.Multiple networks enrich scenarios and requirements,eliminate information islands,and build a consistent view of multi protocol networks and integrate network load balancing are the realistic requirements of some network applications in the future.In the scenario of multi protocol network requirements,the network integrating different types has some problems,such as unstable communication,unbalanced data traffic load,poor robustness and so on.To solve the above problems,combined with SDN,this paper analyzes and studies the dynamic mechanism to solve the intelligent routing scheduling problem in multi protocol network environment.The main work is as follows:(1)an accurate cost model of integrated network based on subjective and objective is proposed.Through the real-time traffic monitoring module and network information calculation module,the link information is divided into 15 combinations,such as hops,delay,bandwidth and packet loss rate.Provide different combination costs for different networks according to their respective characteristics.In addition,based on the subjective weighting method G1 method,an index threshold G1 method is proposed according to the use environment of heterogeneous networks.The hierarchical threshold is set for different indexes,and different weights are assigned according to the reached threshold standard.The objective weighting method adopts the standard deviation method,and then combines the two methods according to the weight to give the final link cost.(2)A differentiated multi-path routing algorithm is designed.Based on heap optimization Dijkstra,a multi-path Dijkstra variant algorithm is proposed.Set the differentiated cost calculation method,from the shortest path optimization to multi-path transmission,from the single cost optimization to the combined cost,and apply it to the multi-path Dijkstra variant algorithm to obtain multiple transmission links with accurate cost.(3)According to the characteristics of the integrated fusion network,this paper designs the Federation routing topology and the fusion network routing strategy,sets the Federation topology and differentiated Federation strategy for each type of network,selects multiple paths in line with their own characteristics for the fusion network,and forwards data in proportion.This paper uses Ryu controller to simulate the routing scheduling mechanism on the Mininet platform.The results show that through the dynamic and multidimensional full-time air-conditioning mechanism,the multi-path characteristics of the integrated fusion network are fully exploited,the differentiated structure of the heterogeneous network is standardized,the hierarchical characteristics of the federated routing of the heterogeneous network are fully utilized,and the multi-protocol fusion is realized.Differentiated path selection and traffic scheduling of the network in a dynamic environment,and have achieved obvious results in multiple indicators such as delay,bandwidth utilization,jitter and packet loss rate.