Research of SNMP-based network topology discovery algorithm in IOT

Due to the rapid development of the IOT, more and more devices in the network need to be connected to the IOT. Device management and device auto-discovery has become increasingly important. Network topology is a way to describe the logical or physical connections between network devices, and it is extremely necessary for the configuration management, even for the entire network management. Because of the dynamic and the increasing scale of the networks, getting topology manually is almost impossible. As a result, the researchers begin to study the network topology auto-discovery technology. For the reasons of more and more network equipment providing SNMP protocol, a SNMP-based topology discovery algorithm is brought forward. This paper first research the SNMP-based topology discovery algorithm. Then on the base of the indicators refined for topology discovery algorithms, we compare several topology discover methods and sum up the most suitable application environment for the SNMP-based algorithm. Finally this paper provides the details of implementation of the SNMP-based topology discovery tool, including the implementation of the algorithm and the architecture and the mutual flow of the software.