Information processing method in optical network, optical communication apparatus and system

An information processing method in an optical network, comprising:

• receiving, by a node, a third message from overhead of a first dimension;
• searching for local configuration information, wherein the local configuration information comprises the overhead of the first dimension of a protection path and a protection resource of the first dimension of the protection path;
• and determining a protection path correlated with the third message, according to the local configuration information and the third message;
• setting up a cross-connection for the protection path correlated with the third message if the third message is a protection switching message;
• recording a state of the protection path correlated with the third message if the third message is a protection path state message.

An information processing method in an optical network, comprising:

• determining, by a node, a protection path upon detecting failure of a working path;
• searching for local configuration information, wherein the local configuration information comprises overhead of a second dimension of the protection path and a protection resource of the second dimension of the protection path;
• and determining the overhead of the second dimension of the protection path according to the local configuration information;
• and
• sending a fourth message to a node adjacent to the second dimension through the overhead of the second dimension of the protection path, wherein the fourth message is a protection switching message.

An optical communication system, comprising:

• a first optical communication apparatus, configured to:
• determine a protection path upon detecting failure of a working path;
• search for local configuration information, wherein the local configuration information comprises overhead of a second dimension of the protection path and a protection resource of the second dimension of the protection path;
• and determine overhead of the second dimension of the protection path in the first optical communication apparatus according to the local configuration information;
• and send a fourth message to a node adjacent to the second dimension of the first optical communication apparatus through the overhead of the second dimension of the protection path in the first optical communication apparatus, wherein the fourth message is a protection switching message;
• and
• a second optical communication apparatus, configured to:
• receive a third message from overhead of a first dimension of the second optical communication apparatus;
• search for local configuration information, wherein the local configuration information comprises the overhead of the first dimension of the protection path and a protection resource of the first dimension of the protection path;
• and determine the protection path correlated with the third message, according to the local configuration information and the third message, wherein the third message is a protection switching message;
• and set up a cross-connection for the protection path correlated with the third message.