The Research Of Analysis And Application Of Network Topology Algorithm For Electric Power Information System

With the "Internet +" strategy and industrial transformation and upgrading requirements,a new generation of information technology is still the key to the optimization and upgrading of industrial structure.All walks of life are in the direction of the Internet to the transition,and about the national economy and the people's livelihood is also the direction of the smart grid to the development of the power industry from their own situation,speed up the pace of network information construction.In order to find the network bottleneck,the rational allocation of network resources,the best play network performance,the failure of critical equipment in time and early warning and many other issues,the urgent need for a mature,safe integrated IT operation and maintenance management system can be improved Operation and maintenance management department of the operation and maintenance efficiency,and automatic discovery of the network topology is the basic system to achieve the basic conditions.Therefore,this paper develops a set of IT integrated operation and maintenance management system suitable for Gansu Electric Power Company on the basis of focusing on the network topology discovery algorithm of power industry.In this paper,we first describe the concepts and types of topology discovery,then compare several algorithms of topology discovery,choose a simple and effective network layer topology discovery algorithm and introduce the application of SNMP protocol in topology discovery.When the physical layer topology is found,the physical layer algorithm based on the spanning tree protocol STP is selected based on the address forwarding table AFT,and the algorithm is analyzed in detail and the formula is deduced.Finally,the algorithm is implemented.And then the system analysis,combined with SSH,My SQL and other technologies to achieve a set of power information network management system.Function is mainly divided into five parts,one user management,mainly for the system security and set up,only legitimate users can manage the network;Second,topology management,administrators can view the network topology,view the network and equipment Basic information and performance information,easy for administrators to grasp the real-time network running state;Third,network performance monitoring and management,the network of various performance indicators to monitor;Fourth,network equipment monitoring management,The network equipment to monitor and view the details of the equipment,etc.;five is the server monitoring and management,monitoring of various indicators of the server,the failure of timely warning,to ensure that the key server healthy and stable operation;Operation and maintenance personnel to provide a personalized platform for the exchange.The topology management module is the core module of the system,which mainly includes three stages.First,the topology data acquisition and data acquisition are divided into network layer data acquisition and physical layer data acquisition.The attribute values of MIBs need to be collected and the corresponding OID,The data acquisition process is given,the equipment type judgment process,etc.;the second is the data sorting,the collected data according to the father and son relationship to organize,easy to display the topology;Third,the use of excellent topology display components on the topology display.Using two-tier display of the way,making the topology show more concise and clear.At the end of the paper,the sub-function test and the overall function test of the system are carried out.The results show that the efficiency and accuracy of the algorithm have reached the expected design goal,and the other functions have passed the test.