Method, device and system for diagnosing sdn network failure

A technology of network fault and diagnosis method, applied in the field of communication, can solve problems such as low efficiency of business fault diagnosis, and achieve the effect of solving low efficiency of business fault diagnosis, fast and convenient network fault, and fast and convenient diagnosis

Active Publication Date: 2022-07-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a method, device and system for diagnosing SDN network faults, so as to at least solve the problem of low efficiency in service fault diagnosis in related technologies

Method used

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  • Method, device and system for diagnosing sdn network failure
  • Method, device and system for diagnosing sdn network failure
  • Method, device and system for diagnosing sdn network failure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] The technical solutions in this application document can be run in an SDN network, and specifically can run with controllers and network devices in the SDN network, but are not limited to the SDN network.

[0083] figure 1 It is a flow chart of a method for diagnosing SDN network faults according to an embodiment of the present invention Figure 1 ,like figure 1 As shown, the method includes the following steps:

[0084] S102, the controller sends a characteristic parameter of the service flow to a network device, wherein the characteristic parameter is used to obtain a forwarding path of the service flow, and the network device is a device in the forwarding path;

[0085] S104, the controller receives the forwarding path obtained by the network device according to the characteristic parameter;

[0086] S106, the controller diagnoses a network fault according to the simulated traffic collected on the forwarding path.

[0087] Optionally, the simulated flow is genera...

specific Embodiment 1

[0112] image 3 is a schematic diagram of the SDN networking according to the specific embodiment 1, such as image 3 As shown, the SDN controller controls multiple independently running forwarding devices through southbound protocols, such as net conf, of-conf, and open flow protocols. The controller can deliver configuration parameters to the device module of the device through the southbound protocol.

[0113] The controller is connected to multiple devices, and each device is interconnected with links. The controller can deliver configuration to any node at any time.

specific Embodiment 2

[0114] Figure 4 is the flowchart according to the second embodiment, such as Figure 4 As shown, the process of the SDN controller querying the equipment for the fault diagnosis capability of the fault diagnosis device through the southbound protocol includes the following steps:

[0115] Step S401, the device accesses the controller.

[0116] Step S402, after receiving the device online notification, the controller selects the southbound protocol to shake hands with the device to establish a connection according to the southbound protocol information carried by the device when accessing. During the connection establishment process, the controller and the fault diagnosis device may negotiate the version information supported by the traffic forwarding path calculation simulation module or the traffic simulation module.

[0117] Step S403, the controller and the device negotiate the fault simulation and simulation capabilities of the fault diagnosis device, including the versio...

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Abstract

The present invention provides a method, device and system for diagnosing a fault in an SDN network, wherein the method includes: a controller sending a characteristic parameter of a service flow to a network device, wherein the characteristic parameter is used to obtain a forwarding path of the service flow; The controller receives the forwarding path obtained by the network device according to the characteristic parameter; the controller diagnoses network faults according to the simulated traffic collected on the forwarding path. By adopting the above technical solutions, the problem of low efficiency of service fault diagnosis in the related art is solved, and the effect of diagnosing network faults quickly and conveniently is achieved.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a method, device and system for diagnosing faults in an SDN network. Background technique [0002] In related technologies, network fault diagnosis is divided into fault identification, fault location, and fault simulation. In traditional networks, equipment fault diagnosis has problems such as long positioning time, limited operation and maintenance, and complex diagnosis process. [0003] In traditional networks, diagnosing network faults usually requires pre-configuring data collection methods on multiple network device nodes, such as configuring access control list (ACL) rules, and then delivering real service data streams or Simulate data flow, and enable each device node to generate traffic statistics, such as the number of sent and received packets. After the operation and maintenance personnel collect the statistical information on each device node, they can ju...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L41/0677H04L41/06
CPCH04L41/0631H04L41/0654H04L41/0677H04L41/145
Inventor 黄永洁
Owner ZTE CORP
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