NDLI: Preemption based lightpath restoration

Content Provider	IEEE Xplore Digital Library
Author	Sivasankaran, A. Razo, M. Tacca, M. Fumagalli, A.
Copyright Year	2012
Description	Author affiliation: OpNeAR Lab, Erik Jonsson School of Engineering and Computer Science, The University of Texas at Dallas, Richardson, TX, USA (Sivasankaran, A.; Razo, M.; Tacca, M.; Fumagalli, A.)
Abstract	Network element failure may occur due to natural disasters, malfunctioning components, or human errors. Ideally, network failure occurrence should not affect the network performance as it is experienced by the users. For this reason, robust protection mechanisms resort to standby network resources, which are readily available upon failure occurrence, e.g., dedicated path protection. In some network architectures and service models, a less ideal protection approach may still be applicable in exchange for a reduced network and service cost. Graceful degradation of performance upon failure occurrence may be acceptable in this case. The study in this paper explores preemption-based restoration mechanisms applied to optical connections (lightpaths) in Wavelength Division Multiplexing (WDM) networks. The rationale for preempting some of the still functioning lightpaths — while performing rerouting of the failing ones — is to avoid highly unfair scenarios in which some node pairs starve for lightpaths significantly more than other pairs do, as a consequence of a failing network $element^{1}.$
Starting Page	6252
Ending Page	6256
File Size	213892
Page Count	5
File Format	PDF
ISBN	9781457720529
ISSN	15503607
e-ISBN	9781457720536
e-ISBN	9781457720512
DOI	10.1109/ICC.2012.6364946
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-10
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wide area networks Optical fiber networks Algorithm design and analysis Routing Degradation WDM networks
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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