Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

IP/MPLS over WDM network protection and recovery method and system thereof

A technology of network protection and recovery methods, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve the problems of not taking into account the survival strategy, the lack of coordination of survival strategies, and the confusion of alarm storms, so as to achieve optimal resource utilization and survival. Efficiency, the effect of improving joint dynamic survivability

Active Publication Date: 2014-07-23
GUANGDONG PLANNING & DESIGNING INST OF TELECOMM
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the current IP / MPLS over WDM network survival scheme, the survival strategy of the data network is separated from the survival strategy of the optical network, and the advantages of the survival strategies of each layer are not taken into account. Doing so will not only result in a waste of resources, but also lead to alarm storms and confusion

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • IP/MPLS over WDM network protection and recovery method and system thereof
  • IP/MPLS over WDM network protection and recovery method and system thereof
  • IP/MPLS over WDM network protection and recovery method and system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] see figure 2 , figure 2 It is a schematic flowchart of the IP / MPLS over WDM network protection and restoration method of the present invention.

[0026] The IP / MPLS over WDM network protection recovery method includes the following steps:

[0027] S101. Detect attributes of a faulty optical channel in a faulty link; if the faulty optical channel is a working optical channel, perform step S102; if the faulty optical channel is a protection optical channel, perform step S105.

[0028] When a fault occurs at the optical network layer, the protection optical channel of the optical layer is first used to implement service recovery. Therefore, in this step, first determine whether the attribute of the failed optical channel is a working optical channel or a protection optical channel. If it is a working optical channel, It can be judged whether it has a corresponding protection optical channel, and if so, the corresponding protection optical channel can be used to impleme...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an IP (Internet protocol) / MPLS (multi-protocol label switching) over WDM (wavelength division multiplex) network protection and recovery method and a system thereof. The method comprises the following steps: detecting an attribute of a failed optical path in a failed link; if the failed optical path is a working optical path, further detecting whether the working optical path has a corresponding protection optical path or not; if the work optical path has a corresponding protection optical path, transferring LSPs (label switched path) services of the working optical path to the corresponding protection optical path, and releasing resource of the working optical path, otherwise, carrying out rerouting on all LSPs services of the working optical path on an IP / MPLS layer; if the failed optical path is the protection optical path, releasing resource of the protection optical path. According to the IP / MPLS over WDM network protection and recovery method, a data network and an optical network in an IP / MPLS over WDM network can be coordinated, and network survivability is raised.

Description

technical field [0001] The invention relates to the technical field of IP / MPLS over WDM dynamic optical network, in particular to an IP / MPLS over WDM network protection and recovery method, and an IP / MPLS over WDM network protection and recovery system. Background technique [0002] With the popularity of IP services, the rapid development of high-speed router technology, and the extensive adoption of Wavelength Division Multiplexing (WDM, Wavelength Division Multiplex) , the two-layer architecture in which IP / MPLS routers are directly carried on the WDM optical network is very mature and popular. [0003] Such as figure 1 As shown, the IP (Internet Protocol) / MPLS (Multi-Protocol Label Switching) network is responsible for providing network services with QoS (Quality of Service) to end users (end users), ensuring rich data services and multimedia applications , support traffic engineering TE (TE traffic engineering), SLA (Service-Level Agreement), VPN (Virtual Private Netw...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24
Inventor 王云张优训李伟强
Owner GUANGDONG PLANNING & DESIGNING INST OF TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com