An optical performance monitoring method for Carrier Ethernet networks using OAM continuity check messages

Authors:
Flávio Rabello Souza;Moisés R. Ribeiro
Affiliations:
Telecommunications Laboratory (LABTEL)--Electrical Engineering Department, Federal University of Espirito Santo, Vitoria-ES, Brazil 29060-970 and National Telecommunications Agency, Anatel, Brazil;Telecommunications Laboratory (LABTEL)--Electrical Engineering Department, Federal University of Espirito Santo, Vitoria-ES, Brazil 29060-970
Venue:
Photonic Network Communications
Year:
2012

Citing 3
Cited 0

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Abstract

A key feature of Carrier Ethernet networks is its operation and management framework. The link state, in this context, is simply determined by the detection (or absence for a given period) of continuity check message (CCM) at the receiver end of a management end point. However, cross-layer information can be inexpensively gained by looking into the loss patterns of these CCM frames, especially when Carrier Ethernet is operating directly over wavelengths (Layer-1) from transparent optical links or networks. This paper experimentally demonstrates a case for optical signal-to-noise and optical signal-to-interference estimation from monitoring standard CCM frame loss frame rate. Moreover, the loss pattern signatures of such physical-layer impairments may give in-depth link state information for fault and performance management as it may give valuable clues about the dominant impairing phenomena.