Attack-Aware Dedicated Path Protection in Optical Networks

Furdek, Marija; Skorin-Kapov, Nina; Wosinska, Lena

doi:10.1109/jlt.2015.2509161

Cited by 29 publications

(13 citation statements)

References 25 publications

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“…A number of papers have also considered attack-aware RWA for survivable optical networks. In [28] the authors propose a two-step ILP for RWA of working and backup lightpaths using dedicated path protection and a heuristic for larger problems. Heuristic approaches that ensure attack groups of primary and backup paths are disjoint and use the minimum number of wavelengths are presented in [24] and [29].…”

Section: Attack-aware Rwamentioning

confidence: 99%

Optimal attack-aware RWA for scheduled lightpath demands

2019

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In Transparent optical networks (TONs), the data signals remain in the optical domain for the entire transmission path, creating a virtual topology over the physical connections of optical fibers. Due to the increasingly high data rates and the vulnerabilities related to the transparency of optical networks, TONs are susceptible to different physical layer attacks, including high-power jamming attacks. Developing strategies to handle such attacks and mitigating their impact on network performance is becoming an important design problem for TONs. Some approaches for handling physical layer attacks for static and dynamic traffic in TONs have been presented in recent years. In this work, we propose an integer linear program (ILP) formulation to control the propagation of such attacks in TONs for scheduled lightpath demands, which need periodic bandwidth usage at certain predefined times. We consider both the fixed window model, where the start and end timings of the demand are known in advance, and the sliding window model, where exact start and end times are unknown but fall within a larger window. We consider a number of potential objectives for attack-aware RWA and show how the flexibility to schedule demands in time can impact these objectives, compared to both attackunaware and fixed window models. Keywords Transparent optical networks (TONs) • High-power jamming attacks • Scheduled lightpath demands (SLDs) • Integer linear program (ILP) • Routing and wavelength • Assignment (RWA)

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Section: Attack-aware Rwamentioning

confidence: 99%

Optimal attack-aware RWA for scheduled lightpath demands

2019

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“…that do not consider such scenarios. Furdek et al [75] introduced a dedicated path protection scheme considering the concept of attack group that helps to established attack-aware disjoint primary and backup paths. Routing and wavelength assignment were handled by a 2-step ILP formulation.…”

Section: Disaster-based Correlated Cascading Failuresmentioning

confidence: 99%

Disaster-Resilient Optical Network Survivability: A Comprehensive Survey

et al. 2018

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Network survivability endeavors to ensure the uninterrupted provisioning of services by the network operators in case of a disaster event. Studies and news reports show that network failures caused by physical attacks and natural disasters have significant impacts on the optical networks. Such network failures may lead to a section of a network to cease to function, resulting in non-availability of services and may increase the congestion within the rest of the network. Therefore, fault tolerant and disaster-resilient optical networks have grasped the attention of the research community and have been a critical concern in network studies during the last decade. Several studies on protection and restoration techniques have been conducted to address the network component failures. This study reviews related previous research studies to critically discuss the issues regarding protection, restoration, cascading failures, disaster-based failures, and congestion-aware routing. We have also focused on the problem of simultaneous cascading failures (which may disturb the data traffic within a layer or disrupt the services at upper layers) along with their mitigating techniques, and disaster-aware network survivability. Since traffic floods and network congestion are pertinent problems, they have therefore been discussed in a separate section. In the end, we have highlighted some open issues in the disaster-resilient network survivability for research challenges and discussed them along with their possible solutions.

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“…The concept of attack-aware Routing and Wavelength Assignment (RWA) problem presented in [9]- [13] dealt with WDM optical networks. However, jamming attacks in flexible grid optical networks have not been considered yet.…”

Section: Previous Workmentioning

confidence: 99%

“…An attack is defined as an intentional action against the ideal and secure functioning of the network [6]. Physical layer threats and attacks in optical networks have been studied in the literature by several researchers [6]- [13]; operators also consider of paramount importance the security and availability of their systems, and these features have always been a top priority in their solution designs. Further, several vendors are developing tools that protect optical networks, offering intrusion detection and prevention at the physical layer, as well as alerting capabilities for the operators.…”

Section: Introductionmentioning

confidence: 99%

“…It is worth noting that this kind of attack can be performed from remote locations without physical access to the node under attack. Due to the high bit rates of flexible grid optical networks and the large number of lightpath interactions, a jamming attack can cause a huge amount of information loss, as this attack may propagate in the network, affecting other lightpaths as well [11]- [13]. Therefore, the limitation of crosstalk interactions in order to prevent service disruption is a crucial consideration in the planning of flexible grid optical networks.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Crosstalk-Aware Routing Spectrum Assignment and WSS Placement in Flexible Grid Optical Networks

Manousakis

Ellinas

2017

J. Lightwave Technol.

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Due to crosstalk-induced interactions among different connections, malicious high-power jamming signals can potentially spread widely in a transparent optical network. Moreover, due to imperfect port isolation in wavelength selective switches (WSSs), present within optical switching nodes, crosstalk also affects the quality of the transmitted signal. Therefore, it is necessary to design an optical network in a way that the effect of crosstalk is minimized, while at the same time keeping the cost and the power consumption of the network low. This is achieved in this work by the design of appropriate WSS placement and crosstalk-aware Routing and Spectrum Assignment (RSA) algorithms in flexible grid optical networks, in the form of an Integer Linear Program (ILP) formulation and a heuristic algorithm analogous to vertex coloring. The objective of the optimization algorithms is to minimize the impact of the crosstalk effect, thus minimizing the impact to the normal operation of the network. The optimization objective is enhanced with proper functions in order to minimize the capital expenditure (CAPEX) and the operational expenditure (OPEX) of the networks investigated in terms of cost and power consumption respectively. Performance results indicate that the proposed algorithms minimize the number of WSSs required to compensate for the crosstalk effect, while only slightly increasing the spectrum utilization.

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Attack-Aware Dedicated Path Protection in Optical Networks

Cited by 29 publications

References 25 publications

Optimal attack-aware RWA for scheduled lightpath demands

Optimal attack-aware RWA for scheduled lightpath demands

Disaster-Resilient Optical Network Survivability: A Comprehensive Survey

Crosstalk-Aware Routing Spectrum Assignment and WSS Placement in Flexible Grid Optical Networks

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