General availability model for multilayer transport networks

Verbrugge, Sofie; Colle, Didier; Demeester, Piet; Huelsermann, Ralf; Jaeger, Monika

doi:10.1109/drcn.2005.1563848

Cited by 78 publications

(61 citation statements)

References 3 publications

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“…For terrestrial optical fiber, CC can be assumed to be 450km [18]. Duration of MTTR can be assumed as 24 hours long.…”

Section: Methodsmentioning

confidence: 99%

A Comparison of Path Protections with Availability Concern in WDM Core Network

Farabi¹,

Idrus²,

Fariza³

et al. 2011

IJCA

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The Internet is supported by long haul WDM core networks. Reliability is a huge concern in WDM core networks since service disruption would carry significant revenue, reputation and prospect loss. In ensuring reliability to network services, two means of protection scheme are usually used in WDM core networks; dedicated path protection and shared path protection. A comprehensive comparison of dedicated and shared path protection is discussed in this study. Availability concerned path protection implemented in the study will be based on random dynamic arrival traffic with adaptive routing method. The comparison will be based on several quality benchmarks such as availability satisfaction ratio, blocking probability, link utilization, provisioning complexity and network utilization.

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“…For terrestrial optical fiber, CC can be assumed to be 450km [18]. Duration of MTTR can be assumed as 24 hours long.…”

Section: Methodsmentioning

confidence: 99%

A Comparison of Path Protections with Availability Concern in WDM Core Network

Farabi¹,

Idrus²,

Fariza³

et al. 2011

IJCA

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show abstract

“…For example, providing gold, silver and bronze service classes by giving the gold traffic 1+1 (node and link) disjoint path restoration, silver class shared backup restoration and the bronze class no protection relying on rerouting after failure. Typical simulation-based numerical results for this type of approach [43] for a sample European network topology show average availabilities of gold 99.89%, silver 99.73%, and bronze 97.74% classes respectively. While this approach can provide differentiated quality of resilience service classes, it is not designed around end-toend availability guarantees.…”

Section: Classes Of Resilience and The Spine Conceptmentioning

confidence: 99%

Resilient network design: challenges and future directions

Tipper

2013

Telecommun Syst

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This paper highlights the complexity and challenges of providing reliable services in the evolving communications infrastructure. The hurdles in providing end-to-end availability guarantees are discussed and research problems identified. Avenues for overcoming some of the challenges examined are presented. This includes the use of a highly available network spine embedded in a physical network together with efficient crosslayer mapping to offer survivability and differentiation of traffic into classes of resilience.

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“…Considering connection-oriented networks such as GMPLS, the availability of an established Label Switched Path (LSP) depends on the applied recovery mechanism [9], the availability of spare resources and the network topology as a whole [10]. Three main recovery strategies exist.…”

Section: Standard Connection Recovery Schemesmentioning

confidence: 99%

Restoration in multi-domain GMPLS-based networks

Manolova

Ruepp

Dittmann

et al. 2011

Computer Communications

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In this paper we evaluate the efficiency of using restoration mechanisms in a dynamic multi-domain GMPLS network. Major challenges and solutions are introduced and two well-known restoration schemes (End-to-End and Local-to-End) are evaluated. Additionally, new restoration mechanisms are introduced: one based on the position of a failed link, called Location-Based, and another based on minimizing the additional resources consumed during restoration, called Shortest-New. A complete set of simulations in different network scenarios show where each mechanism is more efficient in terms, such as, resource overbuild or recovery delay.

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General availability model for multilayer transport networks

Cited by 78 publications

References 3 publications

A Comparison of Path Protections with Availability Concern in WDM Core Network

A Comparison of Path Protections with Availability Concern in WDM Core Network

Resilient network design: challenges and future directions

Restoration in multi-domain GMPLS-based networks

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