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Cross-layer network fault recovery system and method based on configuration migration

A technology for network failures and failures, applied in the field of communications, to solve problems such as service rerouting

Active Publication Date: 2020-07-10
BEIJING UNIV OF POSTS & TELECOMM +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

What's more, recovering one failed node could cause rerouting of thousands of services

Method used

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  • Cross-layer network fault recovery system and method based on configuration migration
  • Cross-layer network fault recovery system and method based on configuration migration
  • Cross-layer network fault recovery system and method based on configuration migration

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Embodiment Construction

[0049] The technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.

[0050] The present invention aims at recovering the faulty network, and avoids complex rerouting calculation and time-consuming protocol synchronization in the fault recovery process of the double-layer switching network through the configuration migration of the faulty node, greatly reducing the fault recovery time; Only the configuration is migrated. Before and after the fault recovery, the network configuration remains unchanged, the two-tier network is externally consistent, and the network management and operation methods do not need to be changed.

[0051] figure 1 It is a schematic diagram of the cross-layer network structure implemented by the system and method. In order to better illustrate the cross-layer network fault recovery system of the embodiment of the present invention, the embodiment...

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Abstract

The invention discloses a cross-layer network fault recovery system and method based on configuration migration. The method comprises: an upper-layer switching network controller sending equipment fault information to a super controller; the super controller performing fault equipment positioning and selecting standby upper-layer switching network device in the upper-layer switching network; the super controller generating a third forwarding table and issuing the third forwarding table to the upper-layer switching network controller and the lower-layer switching network controller; the upper-layer switching network controller generating a first forwarding table needing to be updated according to the third forwarding table and issuing the first forwarding table to the neighbor equipment ofthe corresponding fault equipment and the standby upper-layer switching network device; and the lower-layer switching network controller calculating lower-layer switching network transmission channelsaccording to the third forwarding table, and updating the second forwarding table of the lower-layer switching network device on the transmission channels. According to the invention, the reconfigurability of the lower-layer switching network is utilized to realize the rapid replacement and service recovery of the upper-layer switching network fault equipment.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and a system for providing fast fault recovery for a double-layer switching network. Background technique [0002] In recent years, the vigorous development of new technologies such as unmanned driving, VR (Virtual Reality, virtual reality), and satellite positioning has brought about tremendous changes to the entire IT (Information Technology, information technology and industry) industry. To guarantee the service quality of these services, low-latency and high-reliability communication schemes are required in fronthaul / backhaul networks. [0003] SDN (Software Defined Network) divides the traditional network system into a control plane and a data plane. The former decides data forwarding, while the latter is only responsible for underlying data forwarding. It adopts a centralized control method and a flexible programming interface to realize flow-based The forwa...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L45/24H04L45/28H04L45/74
CPCH04L41/0654H04L41/0661H04L41/0663H04L45/64H04L45/28H04L45/74H04L41/0668H04L45/22
Inventor 顾仁涛连盟刘林栾敬钊王保力纪越峰
Owner BEIJING UNIV OF POSTS & TELECOMM
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