Comprehensive end-to-end reliability assessment of optical network transports

Chu, Kwang-Uk; Mezhoudi, Mohcene; Hu, Ying

doi:10.1109/ofc.2002.1036324

Cited by 16 publications

(12 citation statements)

References 0 publications

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“…This choice is determined by the difficulty of building statistical models of external failure agents and by the fact that only intrinsic availability usually appears in system specifications. On the other hand, there is no clear agreement in literature about the effective statistical relevance of external failures: accidental link breakups are reported to be rare events by some authors (1.24 min/year [28]) or relatively frequent by some others (136 cuts in the U.S. during 1997 [8], or 1.5 cuts per 1000 miles/year, typically used in the U.S. long-haul networks). Since we you are focusing on the internal failure causes and the consequent relative availability values, actual values of unavailability could be worse.…”

Section: Wdm Channel Availability Modelmentioning

confidence: 99%

Availability design of optical transport networks

Tornatore

Maier²,

Pattavina

2005

IEEE J. Select. Areas Commun.

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Abstract-A design technique for reliable optical transport networks is presented. The network is first dimensioned in order to carry a given set of static protected optical connections, each one routed maximizing its availability. The network can be further optimized by minimizing the number of fibers to be installed, while keeping a control on connection availability, which can remain the same or decrease by a prefixed margin factor. Design and optimization algorithms are provided for networks adopting dedicated and shared path-protection. The optimization approach is heuristic. Results obtained by applying the proposed technique to two casestudy networks are shown and discussed. These two case-study experiments are carried out exploiting a realistic model to evaluate terrestrial and submarine optical link availability.Index Terms-Deterministic network calculus, mathematical programming/optimization, system design.

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Section: Wdm Channel Availability Modelmentioning

confidence: 99%

Availability design of optical transport networks

Tornatore

Maier²,

Pattavina

2005

IEEE J. Select. Areas Commun.

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show abstract

“…An end-to-end reliability framework and a comprehensive assessment methodology have been developed at Bell Labs to provide a reliability-based optical network design [4][5][6]. This methodology provides a comprehensive approach to assess the end-toend network reliability of networks with any mix of protection schemes (including no protection, 1 ϩ 1, 1:N, and shared mesh protection) and any mixture of node and transport equipment.…”

Section: Reliability Assessment For the Connectivity Plane-networkmentioning

confidence: 99%

“…Despite the seemingly secure nature of optical network technology, vulnerabilities still exist. In all optical transport networks, short and sporadic failures of network elements (e.g., fiber links and optical cross-connects) may cause extensive loss of data and significant financial losses for service providers, because of the high traffic rates [4].…”

Section: Reliability Assessment Of Denial Of Service Due To Coordinatmentioning

confidence: 99%

An integrated framework for the assessment of network operations, reliability, and security

Chu¹,

Chu²

2004

Bell Labs Tech. J.

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“…The traditional approach in analyzing network reliability is to determine the end-to-end availability for a few selected reference connections [6]. This is done partly because very often the reliability assessment is conducted before the final architecture of the network is decided.…”

Section: Introductionmentioning

confidence: 99%