Network simulation method and system in SDN scene

A network simulation and scene technology, applied in the transmission system, digital transmission system, data exchange network, etc., can solve problems such as difficult to predict, difficult to monitor, difficult to adjust, etc., to achieve the effect of improving link utilization

Active Publication Date: 2020-05-12
PURPLE MOUNTAIN LAB
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems encountered by the backbone network, such as traffic bursts, difficult to predict, traffic congestion, difficult to monitor, and difficult to adjust, the technical solution provided by the present invention for simulation prediction and analysis based on business traffic in the SDN scenario can effectively s

Method used

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  • Network simulation method and system in SDN scene
  • Network simulation method and system in SDN scene

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Embodiment 1

[0031] The present invention provides a network simulation method under the SDN scene, and the simulation prediction method includes the following steps:

[0032] Step 1, according to the user's request, execute the network simulation instruction, and the simulation scheduling management module mirrors the current network topology, tunnel and port flow data;

[0033] Step 2: The user simulates the failure of the live network through the front-end page of the controller; the user selects some nodes or links on the front-end interface of the controller, and simulates the failure of these nodes or links.

[0034] Step 3, the controller calculates the new path; according to the current network topology of the mirror, if the new forwarding path of the node or link that avoids the current simulated fault cannot be calculated, an analysis report is given to remind the user that these nodes or links are faulty , will cause business interruption, and inform which businesses will be int...

Embodiment 2

[0038] The present invention also provides a network simulation system in an SDN scenario. The simulation prediction system includes an SDN controller deployed in the backbone network, several data centers, network elements in several backbone networks, and a network element connecting the data center and each network element. For tunnels, the SDN controller is used to collect ports of network elements and tunnel traffic, is responsible for tunnel path calculation and network control, and has a simulation function.

[0039] Further, the SDN controller includes the following modules:

[0040]The network topology management module, including the physical topology and protocol topology of the network, provides topology data for the path algorithm module; the network traffic collection module dynamically obtains the port traffic and tunnel traffic of the network element by running the collection protocol with the network element device, and Perform data aggregation and processing,...

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Abstract

The invention discloses a network simulation method and system in an SDN scene, and the method comprises the following steps: 1, executing a network simulation instruction according to a user request,and enabling a simulation scheduling management module to mirror the current network topology, tunnel and port flow data; 2, simulating a current network fault by the user through a controller front-end page; 3, the controller performs new path calculation according to the mirrored network information; 4, calculating the load condition of the current port according to the new path condition and the tunnel flow condition; and 5, formulating a network status analysis report for the user according to the load condition obtained in the step 4. According to the technical scheme provided by the invention, the problems of traffic burst, difficulty in prediction and network adjustment in the backbone network at present can be effectively solved, and the influence of possible network changes on services is analyzed through simulation of network element/link faults so that the customer fault risk assessment capability is improved and the network robustness is improved.

Description

technical field [0001] The invention belongs to the technical field of application in IP backbone network and 5G bearer network, and specifically relates to network simulation and prediction using network service flow in the SDN (Software Defined Network) scenario, identifying network risk points and guiding operation and maintenance personnel to carry out network The method of expansion. Background technique [0002] In the cloud era where new services and new demands are constantly emerging, the IP backbone network, as an indispensable bridge and link connecting various Internet services, inevitably faces new challenges. Operators need to build a data center-oriented intelligent backbone network to meet the requirements of the cloud computing era for more flexibility, lower cost, lower latency, higher bandwidth, and higher reliability of the backbone network. [0003] With the rapid development of applications such as 4K and VR, video traffic has increased exponentially, ...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/26H04L12/717H04L12/751H04L12/803H04L12/911H04L45/02H04L45/42
CPCH04L41/145H04L41/147H04L43/045H04L43/0894H04L45/02H04L45/42H04L47/125H04L47/825Y02D30/50
Inventor 石鸿伟雷华黄韬刘韵洁
Owner PURPLE MOUNTAIN LAB
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