H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 29/14 (2006.01) H04L 1/20 (2006.01) H04L 12/56 (2006.01)
Patent
CA 2385848
Methods and network nodes are provided which are adapted to perform protection switching on the basis of raw signal quality information, such as raw BER information, in a manner which instigates the protection switching before an actual failure has occurred. In some embodiments, these methods leverage forward error correction and uncorrected BER to effect traffic redirection before faults are observed at layer 2 and above. This is as opposed to the method of switching layer 2 traffic in response to bitstream characteristics observed at that layer.
Carpini Walter Joseph
Donnelly Victoria
Johnsen Hans Frederick
Vieregge Richard Charles
Alcatel-Lucent Canada Inc.
Donnelly Victoria
Tropic Networks Inc.
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