An Efficient Algorithm about Extracting Large MIB Table

The composition of the network becomes more complex and the number of nodes that compose a network has increased greatly. Therefore, efficient network management is becoming vital. SNMP (Simple Network Management Protocol) with its advantages of high efficiency has been widely used in the management of a variety of network communication equipments, but how effectively transmit large bulk data between NMS (Network Management Station) and SNMP Agent remains a prominent issue. GetBulk made a great contribution to SNMPv2 in transferring bulk data, but there is a problem in extracting bulk data from mib tables using GetBulk is that the management system typically does not know the number of rows in the table, so easily leads to excessive or insufficient retrieval. To resolve these problems, this article proposes an M-GetBulk algorithm by adding GetBulk Request PDU field and modifying data storage structure. Our simulation results also show that M-GetBulk algorithm greatly reduces network bandwidth consumption and data query time.