Method and system and device for collecting flow data

Abstract

The invention discloses a flow data collection method and system, and a flow data collection device. In the present invention, a time variable is added to the request message for obtaining the flow accumulation value, and the monitoring object returns the flow accumulation value and the corresponding time information to the flow data collection device according to the time variable, so that the flow data collection device can know each Accurate time corresponding to each flow accumulation value, and then accurate flow data can be calculated. Moreover, when realizing the technical solution of the present invention based on SNMP, existing variables in SNMP can be used as time variables, so that the technical solution of the present invention can be realized without any improvement to the monitoring objects in the network, and then the cost is reduced. The realization cost of the technical solution of the invention improves the feasibility of the technical solution of the present invention, and makes the technical solution of the present invention have higher practicability.

Description

technical field [0001] The invention relates to network management technology, in particular to a flow data collection method, a flow data collection system, and a flow data collection device. Background technique [0002] In order to monitor the use of network resources to know whether the network is busy in real time, so as to determine whether the network needs to be upgraded or expanded. Existing network management servers used as traffic data collection devices can collect various traffic in the network, such as interface input traffic, interface output traffic, interface bandwidth utilization, quality of service (QoS) traffic, and the like. [0003] figure 1 It is a schematic diagram of the flow data collection process in the prior art. like figure 1 As shown, taking the realization of traffic data collection based on Simple Network Management Protocol (SNMP) and the traffic data collection device as a Network Management Server (NMS) as an example, an existing traff...

AI Technical Summary

Problems solved by technology

Although this solution solves the above problems to a certain extent, there are still errors in the finally obtained traffic data, which is not accurate traffic data

And the collection time interval is too long, which reduces the efficiency of traffic data collection, and may miss peak data, which cannot effectively reflect the usage status of network resources

[0011] It can be seen that although there are many traffic data collection methods in the prior art, none of them can eliminate the error caused by the busy network and cannot obtain accurate traffic data.

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