Design And Implementation Of The Sky-Ground Network Management Protocol Based On Identity

At present,the ability of the Internet to exchange information without space constraints makes people’s demand for the Internet increasing.However,the traditional Internet has always had the disadvantage of incomplete information coverage in the development process,which cannot meet the access needs of users at any time and any place.Therefore,the sky-ground network that is not affected by weather and environmental factors appears in people’s vision,and the network has the ability of global seamless normalized coverage.However,many problems existing in the dual identity of the IP address of the traditional Internet cannot well adapt to the sky-ground network.Therefore,many scholars in China and abroad have made improvements to the network architecture.One of the more typical architectures is to use the idea of separating user space and network space,and put forward the identity network architecture with the ‘access identification’,‘routing identification’ and their separation and analysis mapping mechanism as the core.The combination of this architecture and the sky-ground network solves the problems of the traditional Internet architecture on the one hand,and meets the access needs of different users on the other hand.The management mechanism of sky-ground network based on identification is an important means to grasp the trend of network data.Therefore,the work of this paper is part of the project “Sky-Ground Network Prototype System Based on Identity Protocol Stack,” which completes the design and implementation of the management protocol of Sky-Ground Network based on Identity Protocol Stack.The work of this thesis is as follows.1.The management protocol adds an adaptive transmission module for the transport layer interface.It mainly designs and implements the data packet sending module and receiving module of the spatial network protocol stack,and realizes the sending and receiving function of the data information in the 16-bit address space.2.For the extended agent module of the identity mapping server,the corresponding identity mapping management information database is written,such as identity mapping entries,user data tables and other information.The access router in the aerial satellite registers new management information database nodes to the local agent of the mapping server through the simple network management extension protocol,and the local agent sends the processing results to the network management server through the network management protocol,so as to obtain the identity mapping entry information.3.Modify the configuration file of the management information base at the network management side and set threshold alarm standards such as device failure so that the mapping server can report the alarm information actively and inform the corresponding network management side.The test environment of network management protocol is deployed in the laboratory simulation environment,and the test of the reformed Net-SNMP software shows the data supporting the 16-bit protocol stack.The port address and port number of mapping packets intercepted by Wireshark packet capture tool are analyzed,and the results show that the corresponding mapping information can be collected and set.The function test of the threshold alarm reporting function of the equipment fault is carried out.The test results show that the warning information of the 16-bit transmission module can be received.When the satellite access router has user access,the network management terminal receives the warning information,which contains the fault identification information and port number,and can quickly solve the problem.