Method for assigning and processing a label in an optical network, optical communication device, and optical communication system

A method for processing a label in an optical network, comprising:

• obtaining a label indicating that a first optical channel data unit (ODU) is multiplexed to a second ODU;
• wherein the label comprises a tributary slot assignment indication field that is used for indicating a tributary slot occupied in the second ODU into which the first ODU is multiplexed;
• and
• multiplexing the first ODU to the second ODU.

An apparatus in an optical network, the apparatus comprising:

• a processor and a computer readable medium having a plurality of computer executable instructions stored thereon which, when executed by the processor, cause the processor to:
• generate a label indicating that a first optical channel data unit (ODU) is multiplexed to a second ODU;
• wherein the label comprises a tributary slot assignment indication field that is used for indicating a tributary slot occupied in the second ODU into which the first ODU is multiplexed;
• and
• send the label.

An apparatus in an optical network, the apparatus comprising:

• a processor and a computer readable medium having a plurality of computer executable instructions stored thereon which, when executed by the processor, cause the processor to:
• obtain a label indicating that a first optical channel data unit (ODU) is multiplexed to a second ODU;
• wherein the label comprises a tributary slot assignment indication field that is used for indicating a tributary slot occupied in the second ODU into which the first ODU is multiplexed;
• and
• multiplex the first ODU to the second ODU.