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Dynamic service restoration method and device, and software defined network SDN controller

A software-defined network and service recovery technology, applied in data exchange networks, electrical components, digital transmission systems, etc., can solve problems such as service interruption

Inactive Publication Date: 2017-03-29
ZTE CORP
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

However, when one or more optical fibers in the transmission network are interrupted or nodes fail, tens of thousands of services will be interrupted, and the time required for dynamic service recovery is at the second level, so a large number of services that need dynamic recovery can be completed within seconds recovery, which is a major challenge for SDN controllers

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  • Dynamic service restoration method and device, and software defined network SDN controller
  • Dynamic service restoration method and device, and software defined network SDN controller
  • Dynamic service restoration method and device, and software defined network SDN controller

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Embodiment Construction

[0049] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0050] Aiming at the existing problem that it is difficult to ensure that a large number of services that need dynamic recovery can be recovered within a few seconds, the present invention provides a method and device for dynamic service recovery and a software-defined network SDN controller, by using multiple pre-built service recovery threads According to multiple pre-constructed first business data, the service path recovery calculation is performed on the services in the service list affected by the interruption, so as to complete the service path recovery of each service, with high efficiency, and ensure that the service recovery time is within the required range. To achieve the purpose of rapid recovery.

[0051]Such as figure 1 Shown is a schemat...

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Abstract

The invention provides a dynamic service restoration method and device, and a software defined network SDN controller. The method is applied to the SDN controller, and comprises the following steps of: obtaining a service interruption instruction in a transmission network, and determining a service list of services influenced by the service interruption; and, performing service path restoration calculation of the services in the service list by adopting multiple pre-constructed service restoration threads and multiple pre-constructed first service data required by service restoration, and completing service path restoration of each service. The dynamic service restoration provided by the invention has high efficiency; the service restoration time is ensured to be in a required range; and thus, the rapid restoration purpose is achieved.

Description

technical field [0001] The present invention relates to the technical field of telecommunication network management, in particular to a method and device for dynamic service recovery and a software-defined network SDN controller. Background technique [0002] After the software-defined network (Software Defined Network, SDN) technology is introduced into the transmission network system, the equipment only needs to maintain the service flow table to ensure real-time and accurate data transmission. When the service flow is interrupted, the SDN controller service will start the dynamic recovery function to process it. However, when one or more optical fibers in the transmission network are interrupted or nodes fail, tens of thousands of services will be interrupted, and the time required for dynamic service recovery is at the second level, so a large number of services that need dynamic recovery can be completed within seconds Recovery, which is a major challenge for SDN contr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/703H04L12/24H04L45/28
CPCH04L41/0654H04L45/28
Inventor 欧雪刚
Owner ZTE CORP
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