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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 manufacturer; the method of re-converging the network to calculate new routes requires a lot of calculation time for fault repair , resulting in a greater impact on the upper-layer virtual network

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

Embodiment 1

[0066] In the network link fault processing method provided by the embodiment of the present invention, the route calculation that requires a large amount of calculation time has been prepared before the fault occurs, and multiple non-overlapping links are calculated as backup links. The probability of non-overlapping backup links 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 recovery, and makes the upper-layer virtual network unaffected or reduced. minimum. The method can be executed by a controller.

[0067] figure 1 A schematic flowchart of a network link fault processing method 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 current link of the SDN fails, obtain a pre-stored backup link corresponding to the current link.

[0069] When the ...

Embodiment 2

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

[0109] Standby link obtaining module 32, when the current link of SDN breaks down, obtains the spare link corresponding to current link stored in advance;

[0110] A target link selection module 34, configured to select a target link from backup links;

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

[0112] The above-mentioned standby 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; search the non-current link path as a backup link.

[0113] The above-mentioned target link selection module 34 is specifically configured to...

Embodiment 3

[0132] see Figure 17 , the 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 processor 40 uses Executable modules, such as computer programs, stored in the execution memory 41 .

[0133]Wherein, the memory 41 may include a high-speed random access memory (RAM, RandomAccessMemory), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection between the system network element 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, wide area network, local network, metropolitan area network, etc. can be used.

[0134] The bus 42 can be an ISA bus, a PCI bus or an EISA bus, etc. The bus can be divided into address ...

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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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