Automatic Update System and Method for Using a Meta Mib
The present invention generally relates to a system and method for automatically updating a MIB by using a meta MIB, and more particularly to a system and method for automatically updating a MIB by using a meta MIB comprising agent 100 for generating an OID named as MIB Info Last Change Time, storing it in the MIB and synchronizing the meta MIB by transmitting a Trap when MIB Info Last Change Time is changed; and NMS 200 , in case a trap is inputted to the NMS, for reading an information in a meta MIB Info to SNMP Walk Operation, rewriting a meta MIB information of the agent based on the read information, storing the meta MIB information in the MIB and transmitting the meta MIB information to the agent. In accordance with the present invention, the drawback residing in the conventional structure is ameliorated by designing a basic structure of SMI in the form of meta MIB, SMI defining management information of MIB which is exchanged between the agent and the NMS. Therefore, the MIB of the agent can be automatically shared by the NMS via on-line, thereby improving an automation functionality of the network management, in spite of the trend to more complicated and advanced network.
1 . A system for automatically updating a MIB of an agent by using a meta MIB in a Simple Network Management Protocol (SNMP) based network having the agent and a Network Management System (NMS) therein, the system comprising:
an agent for generating an OID named as MIB_Info_Last_Change_Time, storing it in the MIB and synchronizing the meta MIB by transmitting a Trap when MIB_Info_Last_Change Time is changed; and
an NMS, in case a trap is inputted to the NMS, for reading an information in a meta MIB_Info to SNMP Walk Operation, rewriting a meta MIB information of the agent based on the read information, storing the meta MIB information in the MIB and transmitting the meta MIB information to the agent.
2 . A method for automatically updating a Management Information Base (MIB) information between a Network Management System (NMS) having a MIB and an agent having a MIB by using a meta MIB, the method comprising the steps of:
rendering the agent to check whether MIB_Info Last_Change_Time is changed or not;
transmitting a trap generated by the agent to the NMS in case MIB_Info_Last_Change Time is changed, while returning to the rendering step in case MIB_Info_Last_Change_Time is not changed;
making the NMS request a Walk Operation on the MIB information, followed by receiving the trap from the agent; and
letting the agent rewrite and store the MIB information through result of the Walk Operation.