Patent ID: 7123831
Filing Date: 2006-10-17
Classification: H04J,H04L,H04Q

Abstract:
1. An optical communication network in which optical signals are exchanged via a first data link between a first network node device and a second network node device with interposition of a number of further interconnected network node devices, characterized in that, after a disturbance on the first data link, a third network node device sends a signaling signal to a fourth network node device connected to the third network node device, which signaling signal contains a parameter determined by the third network node device on the basis of which it is determined whether the fourth network node device is responsible for setting up a second data link which acts at least partially as a standby for the first data link or not, and wherein the fourth network node device is responsible for setting up the second data link if the distance between the fourth and the second network node devices is not less than the distance, adapted by the distance between the fourth and third network node devices, between the third and second network node devices.