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
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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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