Patent ID: 7480458
Filing Date: 2009-01-20
Classification: H04J,H04L

Abstract:
1. A link system for photonic cross connect and transmission apparatus in an optical network in which an in-use system path and a backup system path are set, wherein when an in-use system path is set based on an in-use system path setting request signal containing an in-use system path switching set signal, a photonic cross connect included in the in-use system path transmits a masking release control signal to an adjacent transmission apparatus included in the in-use system path based on an in-use system path setting completion signal, the photonic cross connect and the transmission apparatus links to each other and releases masking there between, and when an in-use system path is deleted based on an in-use system path delete request signal, a photonic cross connect included in the deleted in-use system path transmits a masking set control signal to an adjacent transmission apparatus included in the deleted in-use system path based on an in-use system path delete completion signal, the photonic cross connect and the transmission apparatus links to each other and sets masking therebetween.