Path geo-diversification: Design and analysis

Cheng, Yufei; Li, Junyan; Sterbenz, James P. G.

doi:10.1109/icumt.2013.6798403

Cited by 22 publications

(27 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this section, we evaluate the proposed heuristics and compare their performance with the two-step algorithm [14]. We present the geodiverse paths calculated by our heuristics using the Nobel-EU (Pan-European Reference Network) with 28 nodes and 40 links [45].…”

Section: Real Network Resultsmentioning

confidence: 99%

“…This proves that different locations in the physical network have varying contribution to the overall network connectivity [13]. It has also been observed that area-based challenges can cause a large number of failures in a geographical region and give rise to catastrophic damage to network communications [14]. Numerous events have demonstrated that area-based challenges can be modelled as a circular area with a certain challenge radius.…”

Section: Background and Related Workmentioning

confidence: 96%

“…We have proposed a path diversity mechanism for qualifying the network resilience [7,8]. We further extended this work to the analysis of GeoPath diversity in optical network topologies and have proposed cTGGD (compensated Total Geographical Graph Diversity) to characterise the GeoPath diversity of different network topologies [14]. We have also proposed the GeoDivRP routing protocol that takes advantage of the GeoPath diversity in the physical network topology that achieves survivability by providing multiple geodiverse paths to different application scenarios [27].…”

Section: Background and Related Workmentioning

confidence: 98%

See 2 more Smart Citations

Analysing GeoPath diversity and improving routing performance in optical networks

Cheng

Gardner

et al. 2015

Computer Networks

Self Cite

View full text Add to dashboard Cite

Section: Real Network Resultsmentioning

confidence: 99%

Section: Background and Related Workmentioning

confidence: 96%

Section: Background and Related Workmentioning

confidence: 98%

See 1 more Smart Citation

Analysing GeoPath diversity and improving routing performance in optical networks

Cheng

Gardner

et al. 2015

Computer Networks

Self Cite

View full text Add to dashboard Cite

“…While fault-tolerance requires only redundant components and paths, survivability to correlated failures requires diversity in multiple dimensions: geographic path and medium. Thus, not only should each path be provided by distinct service providers, these paths must be diverse, both in avoiding the use of shared components [55], [56] as well as geographically [56], [57].…”

Section: Multiprovider Multilevel Survivability Challengesmentioning

confidence: 99%

“…While we can design and deploy ResTP without the support of service providers, a geodiverse routing protocol has two components. An intradomain routing protocol such as GeoDivRP can be deployed unilaterally by a service provider, by adding geolocation of routers to link state routing and a heuristic for creating geographically diverse paths [57], [64] using the cross-layering shown in Fig. 9.…”

Section: Multiprovider Multilevel Survivability Challengesmentioning

confidence: 99%

Practical issues for the implementation of survivability and recovery techniques in optical networks

Ellinas¹,

Papadimitriou²,

Rak³

et al. 2014

Optical Switching and Networking

Self Cite

View full text Add to dashboard Cite

Failures in optical networks are inevitable. They may occur during work being done for the maintenance of other infrastructures, or on a larger scale as the result of an attack or large-scale disaster. As a result, service availability, an important aspect of Quality of Service (QoS), is often degraded. Appropriate fault recovery techniques are thus crucial to meet the requirements set by the Service Level Agreements (SLAs) between the carriers and their customers.In this paper, we focus on practical issues related to the deployment of fault recovery mechanisms in commercial optical networks. In particular, we outline the most important functionalities that, to our knowledge, need to be implemented, as well as discuss the related problems making deployment of fault recovery mechanisms difficult. Investigated topics include: fault recovery challenges (fault detection, location, and recovery), multiple failures recovery, as well as application of reliability mechanisms in elastic optical networks, and in multiprovider multilevel networks.

show abstract

Geodiverse routing with path delay and skew requirement under area‐based challenges

2015

Self Cite

View full text Add to dashboard Cite

With the increasing frequency of natural disasters and intentional attacks that challenge communication networks, vulnerability to cascading, and regionalcorrelated challenges is escalating. Given the high complexity and large traffic load of communication networks, these correlated challenges cause substantial damage to reliable network communication. In this work, we extend the GeoDivRP routing protocol to consider delay-skew requirement when using multiple geographically diverse paths for telecommunication networks under area-based challenges. We present a flow-diverse minimum-cost routing multicommodity flow problem. Furthermore, we present a nonlinear delay-skew optimization problem to balance between delay and traffic skew on paths. We investigate the tradeoff between the delay and skew in choosing multiple geodiverse paths. We implement GeoDivRP in ns-3 to use the optimized paths given by the two optimization solutions and demonstrate their effectiveness compared to open shortest path first Equal-Cost Multi-Path routing in terms of overall link utilization. It guarantees the delay-skew constraint provided by the upper layer while satisfies the traffic demand imposed by multiple routing commodities in the telecommunication networks.

show abstract

Path geo-diversification: Design and analysis

Cited by 22 publications

References 18 publications

Analysing GeoPath diversity and improving routing performance in optical networks

Analysing GeoPath diversity and improving routing performance in optical networks

Practical issues for the implementation of survivability and recovery techniques in optical networks

Geodiverse routing with path delay and skew requirement under area‐based challenges

Contact Info

Product

Resources

About