SDN (Software Defined Network) traffic statistics device and method based on Netflow

Abstract

The invention discloses an SDN (Software Defined Network) traffic statistics device and method based on Netflow. The device comprises an SDN controller, a first Netflow collector, a Netflow transfer network, and an Influxdb database. The first Netflow collector is used for collecting Netflow traffic data of the network equipment and sending the Netflow traffic data to the Netflow transfer network;the Netflow transit network aggregates the acquired Netflow traffic data, and the aggregated Netflow traffic data is stored in a Netflow buffer area of a second Netflow acquirer after being filtered;and the SDN controller reads the Netflow buffer area at regular intervals and stores the Netflow traffic data of the SDN network into an Influxdb database. According to the invention, the network traffic can be counted without additional traffic monitoring equipment and flow analysis equipment, and the SDN networking scheme is simplified.

Description

technical field [0001] The invention relates to a Netflow-based SDN network traffic statistics device and method, belonging to the technical field of communications. Background technique [0002] SDN (Software Defined Network, software defined network) network is a new type of network architecture, which has three basic characteristics of separation of transfer and control, centralized control, and open interface. The core idea of ​​SDN is to separate the control plane and forwarding plane of network equipment, and centralize the distributed control plane in the traditional network to the SDN controller, so as to realize flexible control of network traffic. With the rapid development of Internet technology, the network structure has become more and more complex, and various network applications have different requirements for the network. Therefore, the possibility of problems in the network has greatly increased, and network maintenance has also become more complicated. As...

AI Technical Summary

Problems solved by technology

However, the above scheme has the following disadvantages: 1) additional traffic monitoring equipment and traffic analysis equipment are required, which increases the complexity of the system, thereby increasing the cost of deployment and maintenance; 2) the SDN controller needs to perform information matching with the SDN forwarding equipment, and Generate group table entries and guide flow table entries; 3) cannot export historical traffic data, cannot generate traffic statistics reports

Images