Routing post-disaster traffic floods heuristics

Nasralla, Zaid H.; Musa, Mohamed O. I.; El-Gorashi, Taisir E. H.; Elmirghani, Jaafar M. H.

doi:10.1109/icton.2016.7550599

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…The resilience and energy efficiency of different IP over WDM networks topologies were examined in [2] under fiber cuts or a core node failure. The work in [3] and [4] considered static and dynamic adaptation to traffic surges resulting from re-routing demands after links failures. In [5], an energy efficient 1+1 protection scheme in IP over WDM networks was proposed based on Network Coding (NC) while considering the impact of the topology and the traffic.…”

Section: Introductionmentioning

confidence: 99%

Impact of Link Failures on the Performance of MapReduce in Data Center Networks

Mohamed

El-Gorashi

Elmirghani

2018

2018 20th International Conference on Transparent Optical Networks (ICTON)

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In this paper, we utilize Mixed Integer Linear Programming (MILP) models to determine the impact of link failures on the performance of shuffling operations in MapReduce when different data center network (DCN) topologies are used. For a set of non-fatal single and multi-links failures, the results indicate that different DCNs experience different completion time degradations ranging between 5% and 40%. The best performance under links failures is achieved by a server-centric PON-based DCN.

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Section: Introductionmentioning

confidence: 99%

Impact of Link Failures on the Performance of MapReduce in Data Center Networks

Mohamed

El-Gorashi

Elmirghani

2018

2018 20th International Conference on Transparent Optical Networks (ICTON)

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Post‐Disaster least loaded lightpath routing in elastic optical networks

Ashraf

Idrus

Butt

et al. 2019

Int J Communication

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SummaryDisaster events directly affect the physical topology of core networks and may lead to simultaneous failure of multiple lightpaths leading to massive service outages for network operators. To recover from such a failure scenario, the existing routing algorithms running on network nodes (routers or switches) typically attempt to reestablish the connections over new routes with shortest distances and hop count approach. However, this approach may result in congestion on some links, while other links may have the unutilized capacity. Hence, intelligent lightpath computing techniques are required to efficiently route network traffic over the new routes by considering traffic load of each link in addition to distance and hop count to minimize network congestion. In this paper, we have proposed a capacity‐constrained maximally spatial disjoint lightpath algorithm to tackle the provisioning and restoration of disrupted lightpaths in a postdisaster scenario in the context of elastic optical networking. This algorithm computes an alternate least loaded lightpath for disrupted primary lightpath using capacity‐constrained shortest lightpath. Alternate lightpath selection is based on a criteria parameter for a lightpath to be least loaded and constrained by either the length or the spatial distance between primary and alternate lightpaths. The spatial distance between lightpaths enables to reestablish the disrupted connection request away from disaster proximity. The performance of the proposed algorithm is evaluated through simulation for several parameters like blocking probability, network utilization, connection success rates, and minimum spatial distance.

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Blackout Resilient Optical Core Network

Nasralla¹,

El-Gorashi²,

Elmirghani³

2022

IEEE/ACM Trans. Networking

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A disaster may not necessarily demolish the telecommunications infrastructure, but instead it might affect the national grid and cause blackouts, consequently disrupting the network operation unless there is an alternative power source(s). In this paper, power outages are considered, and the telecommunication network performance is evaluated during a blackout. Two approaches are presented to minimize the impact of power outage and maximize the survival time of the blackout node. A mixed integer linear programming (MILP) model is developed to evaluate the network performance under a single node blackout scenario. The model is used to evaluate the network under the two proposed scenarios. The results show that the proposed approach succeeds in extending the network life time while minimizing the required amount of backup energy.INDEX TERMS -blackout, core network, disaster-resilient, IP/WDM, power outage.

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Routing post-disaster traffic floods heuristics

Cited by 3 publications

References 6 publications

Impact of Link Failures on the Performance of MapReduce in Data Center Networks

Impact of Link Failures on the Performance of MapReduce in Data Center Networks

Post‐Disaster least loaded lightpath routing in elastic optical networks

Blackout Resilient Optical Core Network

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