Joint Multi-layer Survivability Techniques for IP-Over-Elastic-Optical-Networks

Papanikolaou, P.; Christodoulopoulos, K.; Varvarigos, Emmanouel

doi:10.1364/jocn.9.000a85

Cited by 37 publications

(11 citation statements)

References 9 publications

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“…These studies are conducted in all network segments, for different technological choices and costperformance trade-offs, and optical networks are no exception. Illustrative examples include, routing solutions for energy efficiency [3], restoration and protection mechanisms considering network cost minimization [4], [5], client-to-line node architectures combined with transmission techniques for cost-effective network dimensioning [6], [7], multi-layer architectures and approaches for capital expenditures (CAPEX) reduction [8]- [10], transmission technologies to reduce transponders count [11] and Raman amplification technology to reduce amplifiers count [12] just to mention a few. Here, we overview technoeconomic works concentrating on the three areas covered in our study: the impact of 5G in metro optical networks, comparisons between filterless and ROADM (i.e.…”

Section: Related Workmentioning

confidence: 99%

Techno-Economic Impact of Filterless Data Plane and Agile Control Plane in the 5G Optical Metro

Pavón‐Mariño

Moreno-Muro

Garrich

et al. 2020

J. Lightwave Technol.

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Optical metro networks evolution driven by 5G requirements face enormous challenges. Network functions virtualized in the data centers spread to the metro nodes, IP, and optical technologies must cooperate to meet the metro traffic aggregation role. Multiple technological options exist, and carriers confront the need to economically assess them, benchmarked in realistic deployments. This paper gives relevant insights to this aim. We first construct a set of metro network benchmarks. A strategic and distinctive effort is made to incorporate metro WDM topologies, traffic profiles and daily variation patterns, fault-tolerance requisites, and network operational choices, that faithfully reflect the expected 5G metro progression for a national carrier. Then, we use these networks to assess two technological choices. On one hand, the cost-effectiveness limits in terms of CAPEX reductions and energy efficiency brought from the possibility of having an agile control plane in the metro, capable of on-demand instantiation of IT and network resources. On the other hand, we investigate the benefits of replacing ROADMs by more cost-effective filterless technologies, but just limiting this replacement to degree-1 and degree-2 optical nodes, that are prevalent (e.g. >50%) in regional metro topologies. A novel capacity planning algorithm has been developed for IT, IP and optical resources allocation and dimensioning, providing fault-tolerant designs for the realistic scenarios defined. Simulation results have been obtained using the Net2Plan NIW (NFV over IP over WDM) open-source framework. Developed algorithms and part of the testing scenarios are available for inspection in public repositories of the EU METRO-HAUL project, the umbrella for our work. Our results show CAPEX benefits in the order of 10% and energy savings in the order of 20-30% stemming from the on-demand resource allocation in the metro. In addition, degree 1 and degree 2 optical nodes have shown to be a sweet spot for applying filterless switching, with mitigated impact of the associated spectrum waste.

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Section: Related Workmentioning

confidence: 99%

Techno-Economic Impact of Filterless Data Plane and Agile Control Plane in the 5G Optical Metro

Pavón‐Mariño

Moreno-Muro

Garrich

et al. 2020

J. Lightwave Technol.

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“…Papanikolaou designed joint multi‐layer survivability techniques to reduce the cost. He realised this by enabling resource sharing while providing the same level of survivability in IP‐over‐EONs [18]. Then Lu proved the NP‐hardness of joint multilayer protection planning in IP‐Over‐EONs and proposed a time‐efficient heuristics algorithm [19].…”

Section: Related Workmentioning

confidence: 99%

Survivability optimisation of communication network for demand response in source–grid–load system

Liu

et al. 2020

IET Communications

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“…Zhou et al [66] formulated an MILP to assist survivable routing constrained by at least one of the four cross-layer metrics: (1) Newly added logical links to be minimized, (2) maximization of capacity, or (3) connectivity of logical topology after physical link failure, or (4) minimum cross-layer cut to be maximized. Similarly, an ILP formulation is presented in Reference [67] Attacking the physical layer can cause serious service degradation, loss of data, and revenue. Several physical layer attack methods and optical layer security breaches have been documented in Reference [69][70][71][72][73][74].…”

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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Joint Multi-layer Survivability Techniques for IP-Over-Elastic-Optical-Networks

Cited by 37 publications

References 9 publications

Techno-Economic Impact of Filterless Data Plane and Agile Control Plane in the 5G Optical Metro

Techno-Economic Impact of Filterless Data Plane and Agile Control Plane in the 5G Optical Metro

Survivability optimisation of communication network for demand response in source–grid–load system

Disaster-Resilient Optical Network Survivability: A Comprehensive Survey

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