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Paper Abstract and Keywords
Presentation 2010-06-24 14:50
Always 1+1 Path Protection Method by Dynamic Disjoint Path Discovery
Shohei Kamamura, Tomonori Takeda, Takashi Miyamura, Yoshihiko Uematsu, Kohei Shiomoto (NTT) NS2010-28
Abstract (in Japanese) (See Japanese page) 
(in English) 1+1 path protection should be always provided to achieve carrier-grade reliability. 1+1 path protection provides primary and backup paths, which are link- or node-disjoint paths. Traffic data is transmitted on both paths. Therefore, transmission continues even if the primary path failed. However, if the primary path becomes unavailable because of link failure or planned shutdown, one path operation temporarily occurs. This condition makes a network unreliable. We propose a dynamic disjoint path discovery algorithm and an implementation framework that provides always 1+1 path protection against each single-link failure. We evaluated the characteristics of the dynamic path in terms of path length and required bandwidth. Our algorithm always achieves a low-latency path and reduces the required bandwidth when partial links are protected.
Keyword (in Japanese) (See Japanese page) 
(in English) 1+1 path protection / Automatic Recovery, / Dynamic control / Reliability / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 93, NS2010-28, pp. 1-6, June 2010.
Paper # NS2010-28 
Date of Issue 2010-06-17 (NS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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reproduction
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF NS2010-28

Conference Information
Committee OCS NS PN  
Conference Date 2010-06-24 - 2010-06-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Akita University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Core/metro system, Photonic network system, Optical network operation and administration, Optical network design, Traffic engineering, Signaling, GMPLS, Inter-domain route control, Network monitoring, Ethernet, Optical transport network(OTN), High-speed interface, Optical control(wavelength conversion/switching/routing), optical node technology, Optical crossconnect(OXC), Optical add/drop multiplexer(OADM), Optical multipxing/demultiplexing equipment, Optical signal processing, Optical swtiching device, etc 
Paper Information
Registration To NS 
Conference Code 2010-06-OCS-NS-PN 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Always 1+1 Path Protection Method by Dynamic Disjoint Path Discovery 
Sub Title (in English)  
Keyword(1) 1+1 path protection  
Keyword(2) Automatic Recovery,  
Keyword(3) Dynamic control  
Keyword(4) Reliability  
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1st Author's Name Shohei Kamamura  
1st Author's Affiliation NTT Network Service Systems Laboratories (NTT)
2nd Author's Name Tomonori Takeda  
2nd Author's Affiliation NTT Network Service Systems Laboratories (NTT)
3rd Author's Name Takashi Miyamura  
3rd Author's Affiliation NTT Network Service Systems Laboratories (NTT)
4th Author's Name Yoshihiko Uematsu  
4th Author's Affiliation NTT Network Service Systems Laboratories (NTT)
5th Author's Name Kohei Shiomoto  
5th Author's Affiliation NTT Network Service Systems Laboratories (NTT)
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Speaker Author-1 
Date Time 2010-06-24 14:50:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2010-28 
Volume (vol) vol.110 
Number (no) no.93 
Page pp.1-6 
#Pages
Date of Issue 2010-06-17 (NS) 


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