The application discloses a
network expansion management method and device based on SNMPv3. The method comprises: constructing, at the proxy end, an aggregated view
configuration management information base including an aggregated view configuration table and an aggregated view OID table, and a data subscription
management information base including a subscription table; sending, by the
network management station, a first and a second SetRequest PDU to the proxy end; creating, based on the first SetRequest PDU, an aggregated view in the aggregated view configuration table, assigning a unique name and ID to the aggregated view, and configuring, in the aggregated view OID table, a mapping relationship between each
object identifier OID from different MIB trees and each aggregated view ID; creating, based on the second SetRequest PDU, a subscription entry in the subscription table, each subscription entry specifying a target aggregated view, a trigger condition and a
security parameter; monitoring, by the proxy end, the target aggregated view in the subscription entry, and obtaining a target
object identifier OID corresponding to the ID when the trigger condition is met; constructing, by the proxy end, an InformRequest PDU, and sending, based on the
security parameter, data corresponding to the target
object identifier OID to the
network management station; and updating, by the
network management station, the data based on the InformRequest PDU and sending back an
acknowledgement. The application can improve the efficiency, real-time performance and security of network management.