METHODS AND APPARATUSES FOR IMPROVED ETHERNET PATH SELECTION USING OPTICAL LEVELS
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United States of America Patent
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Issued Date -
Jun 16, 2016
app pub date -
Feb 22, 2016
filing date -
Mar 14, 2013
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Abstract
Methods and apparatuses are provided to employ an enhanced Loss of Signal (ELOS) function in network equipment (NE) such as an Ethernet switch that is coupled to an optical path by a transceiver (e.g., an SFP). Diagnostics such as optical path receive (Rx) level from the transceiver are used by the ELOS function to regenerate LOS status from the transceiver when either LOS or designated low Rx level conditions exist. By generating an enhanced LOS (ELOS) on a designated low Rx level, the ELOS function ensures a failing data path is removed before an undesirable amount of errors occur to enhance Ethernet path selection and improve Carrier Ethernet quality of service.
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