Method and device for network link fault processing and controller

A fault handling method and network link technology are applied in the field of network link fault handling methods, devices and controllers, and can solve the problems of high link bundle operation and maintenance costs, large impact on upper-layer virtual networks, poor flexibility and scalability, and the like. Achieve good flexibility and scalability, save computing time, and reduce impact

Active Publication Date: 2018-10-16
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the configuration, management, and operation and maintenance costs of link bundling are high, and the flexibility and scalability are poor, and often require network equipment from the same

Method used

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  • Method and device for network link fault processing and controller
  • Method and device for network link fault processing and controller
  • Method and device for network link fault processing and controller

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0065] Example one:

[0066] In the method for processing network link failures provided by the embodiments of the present invention, routing calculations that require a large amount of calculation time have been prepared before the failure occurs, and multiple non-overlapping links are calculated as backup links. Because one failure affects these multiple links at the same time The probability of a non-overlapping backup link is very low. Once a failure occurs, there are generally available backup links that can be switched, which saves a lot of calculation time for fault repair, so that the upper-layer virtual network is not affected or reduced. The smallest. This method can be executed by the controller.

[0067] figure 1 This is a schematic flow chart of a method for processing network link failures provided by an embodiment of the present invention. The method is applied to SDN, such as figure 1 As shown, the method includes the following steps:

[0068] Step S102: When the cu...

Example Embodiment

[0107] Embodiment two:

[0108] Figure 16 It is a schematic structural diagram of a network link failure processing device provided by an embodiment of the present invention, and the device is applied to SDN, such as Figure 16 As shown, the device includes:

[0109] The standby link acquisition module 32, when the current link of the SDN fails, acquires a pre-stored standby link corresponding to the current link;

[0110] The target link selection module 34 is used to select a target link from the backup links;

[0111] The link switching module 36 is used to switch the current link to the target link.

[0112] The above-mentioned spare link obtaining module 32 is specifically used to: obtain the source node and the destination node of the current link; query the path of the SDN in the preset path record table according to the source node and the destination node; and retrieve the found non-current link The path as a backup link.

[0113] The above-mentioned target link selection modu...

Example Embodiment

[0131] Example three:

[0132] See Figure 17 , An embodiment of the present invention also provides a controller 100, including: a processor 40, a memory 41, a bus 42, and a communication interface 43. The processor 40, the communication interface 43 and the memory 41 are connected through the bus 42; The executable module stored in the memory 41 is executed, such as a computer program.

[0133] The memory 41 may include a high-speed random access memory (RAM, Random Access Memory), and may also include a non-volatile memory (non-volatile memory), for example, at least one disk memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 43 (which may be wired or wireless), and the Internet, a wide area network, a local network, a metropolitan area network, etc. may be used.

[0134] The bus 42 may be an ISA bus, a PCI bus, an EISA bus, or the like. The bus can be div...

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Abstract

The invention provides a method and a device for network link fault processing and a controller, which are applied to a software defined network SDN, and relates to the technical field of communication. The method comprises the steps of obtaining a pre-stored standby link corresponding to a current link when the current link of the SDN is in fault; selecting a target link from the standby link; and switching the current link to the target link. According to the method and the device for network link fault processing and the controller, relatively low configuration, management as well as operation and maintenance costs can be realized without link binding, and relatively good flexibility and expandability can be obtained. As it is unnecessary to converge the network again during a link transmission fault, a plenty of calculation time taken for fault repair is saved, the processing speed of the network link fault is improved, and the influence on an upper virtual network is accordingly reduced.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a network link fault processing method, device and controller. Background technique [0002] Network virtualization technology supports the virtualization of multiple virtual networks on the physical network, allowing different users to share or exclusively occupy slices of network resources, thereby improving the utilization of network resources and realizing an elastic network. SDN (Software Defined Network, Software Defined Network) is an innovative network architecture of Emulex network and a way to realize network virtualization. Its core technology, OpenFlow, separates the control plane of network equipment from the data plane, thereby realizing network traffic. The flexible control of the network makes the network more intelligent as a pipeline. The emergence of SDN technology makes network virtualization easier to implement, with better flexibility and sca...

Claims

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Application Information

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IPC IPC(8): H04L12/703H04L12/707H04L45/28H04L45/24
CPCH04L45/22H04L45/28
Inventor 孙庆恭
Owner GUANGDONG POWER GRID CO LTD
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