Optical burst switched network performance and fault monitoring method

A technology of optical burst switching and fault monitoring, which is applied in the field of communication, can solve the problems of unguaranteed signal quality, inapplicability of optical burst switching network, difficulty in realizing all-optical transparent network, etc., and achieve good scalability, fast and accurate alarm information Effect

Inactive Publication Date: 2006-10-11
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

However, since the optical burst switching network data channel transmits a transparent all-optical signal
And the electric domain business cannot guarantee the quality of the signal carried
It is difficult to implement the method of using the electrical layer to check the signal to monitor the channel performance in an all-optical transparent network.
Therefore the existing above-mentioned monitoring method is not suitable for optical burst switching network

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  • Optical burst switched network performance and fault monitoring method
  • Optical burst switched network performance and fault monitoring method
  • Optical burst switched network performance and fault monitoring method

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[0011] Hard faults in optical networks are often caused by fiber breaks, power failures, damage to lasers or receivers, and human attacks. . Soft faults are often caused by device aging, temperature drift, etc., and are manifested as an increase in the number of random bit errors per unit time (random bit error rate). The state of the channel can be estimated by sampling the channel. In the data channel, sending detection bursts periodically or in a specific way is equivalent to sampling the state of the data channel to detect burst errors. code condition to assess the state of the data channel. If the detection frame encapsulated in the detection burst has a fixed bit pattern, then after receiving the PB, the receiving end only needs to compare the detection frame encapsulated in the PB with the standard pattern to know that the error in the PB is a random error. Or a sudden error. Such as Figure 4 As shown, in the data channel group DCG, in addition to transmitting the ...

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Abstract

The method to protect the burst and fault monitor of an optical exchange network comprises: generating PB and corresponding PBHP in data channel to reflect the fault on optical layer to the electric layer and on-line monitor network performance index; under control or manage, periodic sending PB on channel, while sending corresponding PBHP in advance; receiving and taking out PB on next node to check bit in PB and take count of error code rate; if over the threshold, sending alarm information. this invention can provide fault information fast and rapidly.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to the fault monitoring of an optical interconnection network. Background technique [0002] Optical burst switching technology combines the technical advantages of optical circuit switching and optical packet switching, and is one of the preferred solutions for the next generation of all-optical Internet. The optical burst switching network can be regarded as a superimposed network of the electric domain control network and the all-optical data transmission network. It uses electrical signals to control the optical cross-connect (OXC) equipment to complete the fast cross-connection of the wavelength channel, which is considered to be very A promising form of wavelength division multiplexing (WDM) network switching. It has always been a hot research direction to improve the monitoring mechanism of the optical domain so that the monitoring parameters of the optical domain can ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04B10/08H04B10/07
Inventor 常交法王汝言隆克平阳小龙黄胜
Owner CHONGQING UNIV OF POSTS & TELECOMM
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