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Fault Localization and Alarm Correlation in Optical WDM Networks

Authors: G. Ramesh, S. Sundara Vadivelu


For several high speed networks, providing resilience against failures is an essential requirement. The main feature for designing next generation optical networks is protecting and restoring high capacity WDM networks from the failures. Quick detection, identification and restoration make networks more strong and consistent even though the failures cannot be avoided. Hence, it is necessary to develop fast, efficient and dependable fault localization or detection mechanisms. In this paper we propose a new fault localization algorithm for WDM networks which can identify the location of a failure on a failed lightpath. Our algorithm detects the failed connection and then attempts to reroute data stream through an alternate path. In addition to this, we develop an algorithm to analyze the information of the alarms generated by the components of an optical network, in the presence of a fault. It uses the alarm correlation in order to reduce the list of suspected components shown to the network operators. By our simulation results, we show that our proposed algorithms achieve less blocking probability and delay while getting higher throughput.

Keywords: Alarm correlation, blocking probability, delay, fault localization, WDM networks.

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[1] Canhui (Sam) Ou Hui Zang ,Narendra K. Singhal, Keyao Zhu, Laxman H. Sahasrabuddhe, Robert A. Macdonald, And Biswanath Mukherjee, "Sub path Protection For Scalability And Fast Recovery In Optical WDM Mesh Networks", IEEE Journal On Selected Areas In Communications, Vol. 22, No. 9, November 2004.
[2] Vinh Trong Le, Son Hong Ngo, Xiao Hong Jiang, Susumu Horiguchi and Yasushi Inoguchi, "A Hybrid Algorithm for Dynamic Lightpath Protection in Survivable WDM Optical Networks", IEEE, 2005
[3] Sateesh Chandra Shekhar, "Survivable Multicasting in WDM Optical Networks", August, 2004.
[4] Bin Wu, Pin-Han Ho and Kwan L. Yeung, "Monitoring Trail: a New Paradiagm for Fast Link Failure Localization in WDM Mesh Networks", IEEE Global Telecommunications Conference, 2008, IEEE GLOBECOM 2008.
[5] Hongqing Zeng, Alex Vukovic, and Changcheng Huang, "A novel endto- end fault detection and localization protocol for wavelength-routed WDM networks", Submitted in the Communications Research Centre Canada.
[6] S.Ramamurthy, Laxman Sahasrabuddhe, and Biswanath Mukherjee, "Survivable WDM Mesh Networks", Journal of light wave technology, vol. 21, no. 4, April 2003.
[7] Michael T. Frederick and Arun K. Somani, "A single-fault recovery strategy for optical Networks using sub graph routing", The International Journal of Computer and Telecommunications Networking, Volume 50, Issue 2 (February 2006)
[8] MurielM'edard, "Network Reliability and Fault Tolerance", IEEE Transactions on Volume 50, Issue 1, Page(s):85 - 91, Mar 2001
[9] Hongsik Choi, Suresh Subramaniam, and Hyeong-Ah Choi, "On Double-Link Failure Recovery in WDM Optical Networks", INFOCOM Volume: 2, on page(s): 808- 816 vol.2, 2002
[10] Yufeng Xin, Jing Teng, Gigi Karmous-Edwards, George N. Rouskas and Daniel Stevenson, "Fault Management with Fast Restoration for Optical Burst Switched Networks", IEEE, 2004.
[11] Jian Wang,Laxman Sahasrabuddhe and Biswanath Mukherjee, "Fault Monitoring and Restoration in Optical WDM Networks", National Fiber Optic Engineers Conference NFOEC 2002.
[12] Joon-Young Kim, Sil-Gu Mun, Ju-Hee Park, Jin-Serk Baik and Chang- Hee Lee, "Protection and Fault Localization in a WDM-PON", Korea Advanced Institute of Science and Technology.
[13] Hongqing Zeng, Alex Vukovica, Changcheng Huangb, Heng Huaa and Michel Savoiea, "Wavelength-routing fault detection in an AON testbed utilizing concatenated pilot tones", Submitted in the Communications Research Centre Canada.
[14] G.Ramesh and S.Sundara Vadivelu, "A Reliable and Fault-Tolerant Routing for Optical WDM Networks", International Journal of Computer Science and Information Security, December - 2009.
[15] Network Simulator -