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Protection and recovery method and apparatus for elastic optical burst ring

A recovery method and optical burst technology, applied in the field of optical communication, can solve problems such as inability to solve ROBR, inability to solve ROBR fault detection, positioning control channel and data channel protection and recovery consistency, etc., to achieve the effect of improving robustness

Inactive Publication Date: 2007-09-26
SHANGHAI JIAO TONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] 2. The data channel is all-optical and non-point-to-point
[0021] However, the protection and recovery mechanism of RPR cannot solve the unique problems of ROBR, such as the fault handling of the all-optical data channel, the coordination problem of the control channel and the data channel, etc. Consistency of Channels in Protection and Restoration

Method used

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  • Protection and recovery method and apparatus for elastic optical burst ring
  • Protection and recovery method and apparatus for elastic optical burst ring
  • Protection and recovery method and apparatus for elastic optical burst ring

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Embodiment Construction

[0055] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0056] The principle of the present invention will be described below with reference to FIG. 5 and FIG. 6 .

[0057] Fig. 5 shows a flowchart of a method according to the principles of the present invention; and Fig. 6 shows a structural diagram of an apparatus according to the principles of the present invention.

[0058] To achieve the above object, principle of the present invention is: at first set up the fault model of ROBR and corresponding fault detection method; Then stipulate the fault alarm signal that different faults give MAC (MediaAccess Control, medium access control) layer; Provide MAC layer at last Protection switching methods under different fault conditions.

[0059] Specifically, the protection and recovery method according to the principles of the present invention is shown in Figure 5, and includes the following steps:

[0060] In step S10...

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Abstract

The invention provides a protecting and resuming method which are used in protection and restitution of elastic light outburst ring, it characterized in that it includes following steps: step a, building fault model according to the characters of elastic light outburst ring, the fault model includes various fault types which are corresponding with characters; step b, when one fault is happened, the corresponding fault alarm signal is provided for medium meeting control layer; step c, aiming at the fault alarm signal, the medium meeting control layer is executed corresponding protection rotating method.

Description

technical field [0001] The present invention relates to the field of optical communication, more specifically, to a method and device for protecting and restoring an elastic optical burst ring. Background technique [0002] Optical burst switching (OBS: optical burst switching) is an attractive DWDM (Dense Wavelength Division Multiplexing, Dense Wavelength Division Multiplexing) optical network implementation scheme for high-burst, high-speed IP services, and has become a recent optical Research hotspots in the network field. In optical burst switching, the ingress edge node encapsulates user data into a burst data packet (BDP: burst data packet), and generates a corresponding burst control packet (BCP: burst control packet). The control packet is transmitted in a dedicated control channel prior to the data packet, and an all-optical path is reserved for the corresponding data packet at the passing intermediate node. The burst data packets are directly transmitted transpar...

Claims

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Application Information

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IPC IPC(8): H04B10/00H04J14/02H04Q11/00H04L12/437
CPCH04L12/437H04J14/0283H04J14/0291H04J14/0295H04Q11/0066H04Q2011/0081H04Q2011/0092
Inventor 吴龟灵陈建平李新碗钱雯珺刘玥
Owner SHANGHAI JIAO TONG UNIV
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