WDM loop-back recovery in mesh networks

Current means of providing loop-back recovery, which is widely used in SONET, relies on fiber-based recovery, where a fiber is used to back up another fiber. We present WDM-based loop-back recovery for optical networks where wavelengths are used to back up other wavelengths. We present two new algor...

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Bibliographic Details
Published inIEEE INFOCOM '99. Conference on Computer Communications. Proceedings. Eighteenth Annual Joint Conference of the IEEE Computer and Communications Societies. The Future is Now (Cat. No.99CH36320) Vol. 2; pp. 752 - 759 vol.2
Main Authors Medard, M., Finn, S.G., Barry, R.A.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1999
Subjects
High speed optical techniques
Intelligent networks
Mesh networks
Optical fiber networks
SONET
Telecommunication traffic
Traffic control
Wavelength assignment
Wavelength division multiplexing
WDM networks
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Summary:Current means of providing loop-back recovery, which is widely used in SONET, relies on fiber-based recovery, where a fiber is used to back up another fiber. We present WDM-based loop-back recovery for optical networks where wavelengths are used to back up other wavelengths. We present two new algorithms for performing WDM-based loop-back over optical mesh networks. The first algorithm performs recovery for link failures. We compare its operation with known ways of providing loop-back recovery and show that the known methods are not applicable to WDM-based recovery. The second algorithm performs WDM loop-back recovery for node failures. We illustrate the operation of both algorithms and prove their validity. We discuss the advantages of WDM-based loop-back for flexibility in WDM service provisioning.
ISBN:0780354176
9780780354173
ISSN:0743-166X
2641-9874
DOI:10.1109/INFCOM.1999.751462