Protection method, device and system of intersected ring networks

A protection device and protection system technology, applied in the field of communication, can solve problems such as ineffective protection switching, and achieve the effect of protection switching

Inactive Publication Date: 2014-01-01
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the process of implementing the present invention, the inventor found that protection switching cannot be effectively performed in the intersecting ring scenario

Method used

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  • Protection method, device and system of intersected ring networks
  • Protection method, device and system of intersected ring networks
  • Protection method, device and system of intersected ring networks

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] In a ring network in the embodiment of the present invention, logically there are four ring paths, which are the working direction of the clockwise ring and the corresponding counterclockwise ring protection channel, the working direction of the counterclockwise ring and the corresponding clockwise ring path. The clockwise direction ring protects the channel, and the packet has been configured with the working direction before entering the ring. The services...

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Abstract

The present invention discloses a method, device and system for the protection of intersection ring networks. Two ring networks intersect at two intersection nodes, and the method for the protection of intersection ring networks includes the following steps: the intersection node at which a service does not cross the rings receives a packet, and forwards the packet according to forwarding information which is obtained by the synchronization with the forwarding information of the intersection node at which the service crosses the rings. With the use of the invention, a protection switching for intersection rings is achieved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method, device and system for protecting an intersecting ring network. Background technique [0002] A multi-protocol label switching (Multi-Protocol Label Switch, MPLS) technology is a technology that adopts a label switching technology to realize fast switching and transmission of packet services. Traditionally, the MPLS network adopts fast rerouting (Fast ReRoute, FRR), linear automatic protection switching (automatic protection switching, APS) and some existing MPLS ring network technologies to realize service protection. [0003] The existing MPLS ring protection scheme is based on the physical ring topology, and the service add / drop and protection switch are performed at the label switching path (Label Switch Path, LSP) layer. This solution requires that a closed-loop protection LSP be configured for each working LSP on the ring, and when the link or node passed b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/42H04L12/70
CPCH04L12/437
Inventor 陈建群
Owner STATE GRID CORP OF CHINA
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