Restoration Mechanism and Maximum Dual Failure Restorability of Span-restorable Optical Networks

Author

Zhou, Ling

Author_Institution

Swiss Fed. Lab. for Mater. Testing & Res., Duebendorf

fYear

2006

fDate

24-27 Oct. 2006

Firstpage

1

Lastpage

10

Abstract

A survivable network is commonly designed to be 100% restorable to any single span failure. The restoration mechanism of networks with span restoration is not as straightforward as that of networks with dedicated path protection. The restoration of span-restorable networks can be conducted in real time or preplanned and cross-connected immediately when any failures occur. The disadvantages and advantages of these two mechanisms are discussed. Two linear programming formulations to maximize average dual-failure restorability of a network are developed. A case study shows the flaw of the k-shortest path routing in real-time routing

Keywords

linear programming; optical fibre networks; telecommunication network reliability; telecommunication network routing; telecommunication network topology; dual failure restorability; k-shortest path routing; linear programming formulations; real-time routing; span-restorable optical networks; survivable network; Costs; Integer linear programming; Laboratories; Lead; Linear programming; Materials testing; Optical design; Optical fiber networks; Protection; Routing; Dual failure restorability; integer linear programming; k-shortest path; optimization; span restoration;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communication & Optoelectronic Exposition & Conference, 2006. AOE 2006. Asian

Conference_Location

Shanghai

Print_ISBN

978-0-9789217-0-5

Type

conf

DOI

10.1109/AOE.2006.307319

Filename

4100029