Heuristic Approach for Dynamic Path Localization for Fault Localization in IP Based WDM Networks
K. Sashi Rekha1, Uma Priyadarshini2
1K.Sashi Rekha, Assistant Professor SG, Saveetha School of Engineering, SIMATS, Chennai (Tamil Nadu), India.
2Uma Priyadarshini, Assistant Professor SG, Saveetha School of Engineering, SIMATS, Chennai (Tamil Nadu), India.
Manuscript received on 29 May 2019 | Revised Manuscript received on 11 June 2019 | Manuscript Published on 22 June 2019 | PP: 703-705 | Volume-8 Issue-3S, February 2019 | Retrieval Number: C11500283S19/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Today’s Internet Service Provider (ISP) backbone networks offer enhanced performance to overcome loss, delay, and unavailability. However, in the event of a problem in a network component, the network experiences failures in terms of link faults, path faults, and router crashes. An efficient automated fault localization methodology is necessary to identify faults in the network. The challenges involved in ISP backbone networks include identifying the precise location of the fault and rectifying it immediately. These are, however, time-consuming and create added problems, apart from increasing operational expenditure. There must be a focus on improving device reliability to reduce the time and operational expenditure involved. Hence, fault localization play key roles in locating the fault and rectifying it immediately to avert network disruptions and related problems. Cross layer approach between IP layer (higher layer) and optical layer (lower layer) is adopted. Moreover, Fault occurrences in IP networks are normally brought on by the failure of components such as routers, links, and paths. Also, a shared component failure is identified as one that relies upon other components and culminates in a number of faults. Since hundreds of components are involved in this process, it is difficult to identify a fault and rectify it immediately. The shared component failure and the exact root cause of the failure of the component in the lower layer network need to be identified.
Keywords: Virtual Topology, Localized on Demand Routing, Risk Model, Reconfiguration.
Scope of the Article: Network Protocols & Wireless Networks