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

摘要

The present invention discloses a method for assigning and processing a label in an optical network. The method includes: learning that a label switched path is required to be established in an optical network; generating a label, in which the label is used for indicating that a first optical channel data unit is multiplexed to a second optical channel data unit; the label includes a tributary slot type indication field that is used for indicating a tributary slot type of the second optical channel data unit, and the label further includes a tributary slot assignment indication field that is used for indicating a tributary slot occupied in the second optical channel data unit into which the first optical channel data unit is multiplexed; and sending the label to a node on the label switched path by a signaling message of GMPLS.

主权项

1. A method for assigning and processing a label in an optical network, comprising:
learning that a label switched path is required to be established in an optical network; generating a label according to a signal type of the label switched path and network resources, wherein the label is used for indicating that a first optical channel data unit is multiplexed to a second optical channel data unit; the label comprises a tributary slot type indication field that is used for indicating a tributary slot type of the second optical channel data unit, and the label further comprises a tributary slot assignment indication field that is used for indicating a tributary slot occupied in the second optical channel data unit into which the first optical channel data unit is multiplexed, wherein a length of the tributary slot assignment indication field is equal to the number of tributary slots of the second optical channel data unit; and sending the label to a node on the label switched path by a signaling message of General Multi-Protocol Label Switching.