08243619 is referenced by 1 patents and cites 31 patents.

Methods and apparatus for efficiently allowing protection switch information to be communicated on bidirectional lines are disclosed. According to one aspect of the present invention, a method for communicating protection switch information from a first network element to a second network element across bidirectional links that include at least one working line and a protection line involves obtaining a generic framing procedure GFP frame at the first network element. The GFP frame has a payload area with a client payload field. The method also includes defining a command field associated with the GFP frame that is in the payload area but not in the client payload field, and storing protection switch information in the command field.

Title
Smart mechanism for multi-client bidirectional optical channel protection scheme
Application Number
13/15087
Publication Number
8243619 (B2)
Application Date
January 27, 2011
Publication Date
August 14, 2012
Inventor
Gilberto Loprieno
Milan
IT
Giovanni Tandi
Fara Gera d'Adda
IT
David Bianchi
Cambiago
IT
Agent
Edell Shapiro & Finnan
Assignee
Cisco Technology
CA, US
IPC
H04L 12/56
H04L 12/26
G01R 31/08
H04J 3/14
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