Patent ID: 8331237
Filing Date: 2012-12-11
Classification: H04L

Abstract:
1. A device for supervisory control of a network having a plurality of network elements, comprising: a communication interface which is connected to each of a plurality of element groups, wherein the plurality of network elements is grouped into the plurality of element groups; and a controller for controlling supervisory control information for each element group depending on a communication condition change, wherein the supervisory control is performed according to the supervisory control information, and wherein the controller comprises: a storage for storing the supervisory control information for each of the plurality of element groups, and for storing an optimal transmission interval and an optimal response wait time for each of the plurality of element groups calculated before the communication condition change; a detector for detecting the communication condition change for each said element group by measuring a response time for each network element of the element group and comparing an average of measured response times to an average of normal response times for the element group; and an update controller for updating the supervisory control information of the element group when the communication condition change for the element group has been detected, and for recalculating the optimal transmission interval and the optimal response wait time of the element group when the communication condition change for the element group has been detected, wherein the optimal transmission interval and the optimal response wait time are both part of the supervisory control information, the optimal transmission interval is a transmission interval at which an inquiry signal is transmitted, and the optimal response wait time is a waiting time for which a response signal to the inquiry signal is waited.