NDLI: Survivable virtual concatenation for data over SONET/SDH in optical transport networks

Content Provider	ACM Digital Library
Author	Zhu, Keyao Martel, Charles U. Mukherjee, Biswanath Ou, Canhui Sahasrabuddhe, Laxman H.
Abstract	Next-generation SONET/SDH technologies--namely, generic framing procedure, virtual concatenation, and link-capacity-adjustment scheme--enable network operators to provide integrated data and voice services over their legacy SONET/SDH infrastructure to generate new revenue. An important open research problem on data over SONET/SDH (DoS) is survivability: SONET automatic protection switching is too resource inefficient for data services, and the protection mechanisms of data networks are too slow for mission-critical applications.We propose two approaches for provisioning survivable DoS connections. Our approaches exploit the tradeoff between resource overbuild and fault-recovery time while utilizing the inverse-multiplexing capability of virtual concatenation to increase backup sharing. Our results show that one approach achieves low resource overbuild and much faster fault recovery than that of data networks, and the other approach achieves fast fault recovery comparable to SONET 50-ms protection (for typical U.S. backbone networks) while still achieving modest backup sharing. We further investigate the tradeoff between network blocking performance and network control and management complexity resulting from the number of paths $\textit{M}$ a connection can be inversely multiplexed onto: larger $\textit{M}$ leads to more freedom in routing and better network performance but increases network control and management complexity. Our results indicate that the network blocking performance for small values of $\textit{M}$ (e.g., $\textit{M}$ = 2 for some representative backbone network topologies) is almost as good as the case in which $\textit{M}$ is infinity.
Starting Page	218
Ending Page	231
Page Count	14
File Format	PDF
ISSN	10636692
DOI	10.1109/TNET.2005.863462
Volume Number	14
Issue Number	1
Journal	IEEE/ACM Transactions on Networking (TON)
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2006-02-01
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	WDM Data over SONET Next-generation SONET/SDH Survivability Virtual concatenation
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Networks and Communications Software Computer Science Applications

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
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
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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