Cisco Technology, Inc.

Emanuela Grandi

Luca Della Chiesa

Stefano Binetti

Maurizio Gazzola

David Bianchi

Mauro Macchi

Systems and methods for operating transponders that automatically accommodate multiple received signal types. The different signal types may include different clients such as, e.g., SONET/SDH, G.709, 10 Gigabit Ethernet, etc. as well as different data rates. A transponder can automatically detect the client signal type and data rate and respond by processing the received signal appropriately, notifying a control processor, and invoking an appropriate performance monitoring method. This maximizes the network operator's flexibility and ease of configuration.

Automatic selection of the performance monitoring based on client type

An optical receiver threshold may be optimized in real time based on a forward error correction (FEC) error statistics. A relative number of corrected ones as compared to corrected zeros is tracked. The threshold is shifted in response to an imbalance between the two types of errors.

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Pavia, Italy

Emanuela Grandi