METHOD AND SYSTEM FOR IMPLEMENTING OPTICAL LABEL

摘要

The disclosure provides a method for implementing an optical label, including that: an optical network is domain-partitioned according to Reconfigurable Optical Add-Drop Multiplexer (ROADM) nodes, and one or more frequencies of label signal are allocated for each domain; in each domain, an allocated frequency of label signal is circulated among ROADM nodes and/or among carriers within an ROADM node according to a preset time-division rule; a label signal is sent on a carrier or an optical channel using a circulated frequency of label signal. The disclosure further provides a system for implementing optical label. With the solution of the disclosure, label-signal transmission may be implemented on more carriers or optical channels with less frequencies of label signal, thereby not only reducing demand of the system for the number of label frequencies, but also facilitate label-signal extraction.