A Novel Fault Detection and Localization Scheme for Mesh All-optical Networks Based on Monitoring-cycles

Zeng, Hongyan; Huang, Changcheng; Vukovic, Alex

doi:10.1007/s11107-005-7355-3

Cited by 89 publications

(64 citation statements)

References 12 publications

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“…, hence its alarm code is 101 1100 0000 0000 0000. The alarm code of SRLG ψ = {(1, 2), (3,4), (4,5)} is 101 1100 0111 0001 0100, which is the bit-wise OR of its link alarm codes.…”

Section: Numerical Resultsmentioning

confidence: 99%

M-Burst: A Framework of SRLG Failure Localization in All-Optical Networks

Ali

Tapolcai

et al. 2012

J. Opt. Commun. Netw.

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Abstract-Fast and unambiguous failure localization for shared risk link groups (SRLGs) with multiple links is essential to build fully survival and functional transparent all-optical mesh networks. Monitoring trails (m-trails) has been proposed as an effective approach to achieve this goal. However, each mtrail traverses through each link by constantly taking a wavelength channel (WL), which causes a significant amount of resource consumption. In this paper, a novel framework of alloptical monitoring for SRLG failure localization is proposed. We investigate the feasibility of periodically launching optical bursts along each m-trail instead of supervisory lightpath to probe the set of fiber segments along the m-trail, aiming to achieve a graceful compromise between resource consumption and failure localization latency. The paper will firstly define the proposed framework and highlight the relevant issues regarding its feasibility. We provide theoretical justifications of the scheme. As a proof of concept, the paper formulates the optimal burst scheduling problem via an Integer Linear Program (ILP) and implements the method in networks of all possible SRLGs with up to d = 3 links. A heuristic method is also proposed and implemented for multiple link SRLG failure localization keeping all the assumptions same as the ILP method. Numerical results for small networks show that the scheme is able to localize single and multiple link SRLG failures unambiguously with very small amount of failure localization latency.

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“…, hence its alarm code is 101 1100 0000 0000 0000. The alarm code of SRLG ψ = {(1, 2), (3,4), (4,5)} is 101 1100 0111 0001 0100, which is the bit-wise OR of its link alarm codes.…”

Section: Numerical Resultsmentioning

confidence: 99%

M-Burst: A Framework of SRLG Failure Localization in All-Optical Networks

Ali

Tapolcai

et al. 2012

J. Opt. Commun. Netw.

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“…Since x tends to be 0 when no meaningful period is observed, we use a Gaussian distribution centered in 0 and with a standard deviation inversely proportional to the number of periods over the mean (line 18). Feature probability is eventually computed and P H updated (lines [19][20].…”

Section: El(t) T)-min_mod Max_model( Odel(t) D(t)-min_m D'(t) =mentioning

confidence: 99%

BER Degradation Detection and Failure Identification in Elastic Optical Networks

Vela

Ruiz

Fresi

et al. 2017

J. Lightwave Technol.

111

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“…Failure localization via a central fault management system using m-trails has been extensively studied in the past decade [7]- [14]. Later, Local Unambiguous Failure Localization (L-UFL) [2], [15]- [17] was introduced, which provides a signaling-free failure restoration framework that can be purely operated in the optical domain.…”

Section: B Signaling-free Failure Localization Via M-trailsmentioning

confidence: 99%

Neighborhood Failure Localization in All-Optical Networks via Monitoring Trails

Tapolcai

Babarczi

et al. 2015

IEEE/ACM Trans. Networking

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Abstract-Shared protection, such as failure dependent protection (FDP), is well recognized for its outstanding capacity efficiency in all-optical mesh networks, at the expense of lengthy restoration time due to multi-hop signaling mechanisms for failure localization, notification, and device configuration. This paper investigates a novel monitoring trail (m-trail) scenario, called Global Neighborhood Failure Localization (G-NFL), that aims to enable any shared protection scheme, including FDP, for achieving all-optical and ultra-fast failure restoration. We firstly define neighborhood of a node, which is a set of links whose failure states should be known to the node in restoration of the corresponding working lightpaths (W-LPs). By assuming every node can obtain the on-off status of traversing m-trails and W-LPs via lambda monitoring, the proposed G-NFL problem routes a set of m-trails such that each node can localize any failure in its neighborhood. Bound analysis is performed on the minimum bandwidth required for m-trails under the proposed G-NFL problem. Then a simple yet efficient heuristic approach is presented. Extensive simulation is conducted to verify the proposed G-NFL scenario under a number of different definitions of nodal neighborhood which concern the extent of dependency between the monitoring plane and data plane. The effect of reusing the spare capacity by FDP for supporting m-trails is examined. We conclude that the proposed G-NFL scenario enables a general shared protection scheme, toward signaling-free and ultra-fast failure restoration like p-Cycle, while achieving optimal capacity efficiency as by FDP.

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A Novel Fault Detection and Localization Scheme for Mesh All-optical Networks Based on Monitoring-cycles

Cited by 89 publications

References 12 publications

M-Burst: A Framework of SRLG Failure Localization in All-Optical Networks

M-Burst: A Framework of SRLG Failure Localization in All-Optical Networks

BER Degradation Detection and Failure Identification in Elastic Optical Networks

Neighborhood Failure Localization in All-Optical Networks via Monitoring Trails

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