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Alarm Correlation for
Congestion Diagnosis in ATM Networks.
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[Abstract]
[Download Postscript file] |
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Ying-Dar Lin, Ren-Kuei Yang, Chi-Chun Lo
Proceedings
of NOMS'96, April 1996. |
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In
this paper, we study OAM measurement and alarm correlation methods in ATM networks.
OAM fault management and performance management mechanisms are reviewed. We present the
path intersection heuristics as the alarm correlation method to analyze the alarms
collected by OAM measurements, and to find the congestion areas in ATM networks. We use
simulation to evaluate the proposed heuristics. Besides, we analyze the congestion pattern
in ATM networks by examing the simulation results. Finally, based on the proposed
heuristics, we present three methods to choose the VPCs for rerouting in order to
eliminate the congestion and we make a comparison among these three methods. |
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