Design And Implementation Of SNMP-Based Network Management Of Embedded Radio

Automatic network management, with the purpose of resolving the management difficulties and crises from various heterogeneous networks, appeared in 1980s. By the rapid development of communication technology, the house network, the sensor network and wireless network made more and more embedded devices add into the Internet. The network management managers face more challenges now.The Subway's Wireless Communication System which based on 802.11b standard was cooperated by the 14th research deparment of Nanjing and the Computer Science department of Nanjing University of Aeronautics and Astronautics. As the communication between STA and AP is the key ingredient in this system, it's important to configure and monitor AP and STA. In order to make the system operate normally, a management solution must be adopted to control these devices and check the communication quality of wireless link.By taking the Subway's Wireless Communication System as the applied research background, it constructed the embedded radio's network management model based on SNMP protocol, aiming for a better configuration and automatical alarm when something abnormal happened. It also abstracted the wireless-related parameter and defined the private MIB of embedded radio (AP/STA) based on ASN.1, and completed the design of each function module of agent based on Net-SNMP kit. After cross-compiling and transplant, it accomplished network-management function for the embedded radio. Test results show that the system can work normally, and the agent has a good compatibility and the extra load the system brings to the network is endurable.