FAULT LOCALIZATION AND ALARM CORRELATION IN OPTICAL WDM NETWORKS
Journal: ICTACT Journal on Communication Technology (IJCT) (Vol.1, No. 2)Publication Date: 2010-06-01
Authors : G. Ramesh; S. SundaraVadivelu;
Page : 91-97
Keywords : Alarm Correlation; Blocking Probability; Delay; Fault Localization; WDM Networks;
Abstract
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.
Other Latest Articles
- A TWO LEVEL ARCHITECTURE USING CONSENSUS METHOD FOR GLOBAL DECISION MAKING AGAINST DDoS ATTACKS
- PERFORMANCE ANALYSIS OF DSR ROUTING PROTOCOL UNDER ENERGY BASED SELFISH ATTACK IN MOBILE AD HOC NETWORKS
- ABSORPTIVE OPTICAL BISTABILITY IN HYBRID LASER STRUCTURE
- A HETEROGENEOUS MULTIPROCESSOR SYSTEM-ON-CHIP ARCHITECTURE INCORPORATING MEMORY ALLOCATION
- PERFORMANCE EVALUATION OF INTEGRATED MACRO AND MICRO MOBILITY PROTOCOLS FOR WIDE AREA WIRELESS NETWORKS
Last modified: 2013-12-04 18:25:16