A network management system for u-city

We propose a network management system which is suitable to disaster situation in U-city environment. U-city is a smart city with the intelligent convergence system that integrates IT technology and urban engineering technology such as environment, road traffic, safe and GIS. The network used in U-city should provide services without transmission failure and support functionality which enlarges the role of sensors used to collect information. Thus, a network management system which manages user´s information is necessary. SNMP is the most widely used management protocol standard on the internet. But it manages a network has a static topology and the number of devices which are managed is small. To overcome SNMP problems, we propose an ubiquitous network management system (uNMS) that mobile devices in it is suitable in mobile network which go in and out U-city frequently and can manage lots of agents. And uNMS minimizes a usage of bandwidth. As shown in simulation results overheads are decreased about 40% and the connectivity is increased about 14%. When the mobility of mobile agents increases, the connectivity is 30% higher than SNMP.