Abstract: A method for identifying at least one electrically powered device by a power supply device via a powerline connection, includes: a) connecting the at least one electrically powered device via a powerline to core power supply; b) sensing that a powerline connection is available by the at least one electrically powered device; c) generating a specific load by modulation of the power according to a unique identifier of the at least one electrically powered device on the powerline connection; d) sensing the generated specific load by the power supply device connected to the powerline connection; and e) extracting the unique identifier information from the specific load by the power supply device. An electrically powered device, a power supply device, a power distribution unit, and a corresponding system are also described.

Abstract: A method of supporting power control in a communication network, the network including a plurality of network elements (1) that perform packet forwarding, wherein each network element (1) includes one or more ports—element ports (2)—, is characterized in the steps of assigning a flow table (4) to each of the network elements (1), wherein the flow table (4) includes flow entries (5) that specify via which element ports (2) to forward packets the network element (1) receives, deriving target sets from the flow tables (4), wherein a target set characterizes either a network element (1) as a whole—element target set—or an individual element port (2)—port target set—in terms of its utilization, and based on changes in the respective target sets, deciding on the enforcement of power states on the network elements (1) and/or the element ports (2).

Abstract: A method for routing data traffic in a communication network having a source entity, a destination entity, and a plurality of routers for routing the data traffic from the source entity to the destination entity according to link-state-routing according to a shortest-path-first-algorithm, includes transmitting load information of the at least one data traffic interface to a routing management entity and control information, about a low load period of the at least one data traffic interface to the first router (DR), wherein a low load period is related to a data traffic interface of the first router (DR). The method further includes switching, by the first router (DR), into a dosing-state as an energy-saving state during the low load period, and issuing, by the first router (DR) before entering the dosing-state, an operational state message.

Abstract: A communication network includes a plurality of network elements—communicating nodes—that are enabled to request the establishment of connections—flows—among each other, and a plurality of network elements—switches (3)—that support the routing of the flows. The network further includes elements for intercepting requests for flow establishment, at least one calculation module configured to preselect for each flow a set of possible network paths that are compliant with the flow's performance requirements and/or quality constraints, wherein each path includes a specific set of switches the flow has to traverse, and at least one selection module configured to apply a selection algorithm that analyzes the load of switches that are contained in any network path of the preselected set of network paths for determining a single network path from the preselected set of network paths that is most suitable in terms of energy efficiency.

Abstract: A method for identifying at least one electrically powered device by a power supply device via a powerline connection, includes: a) connecting the at least one electrically powered device via a powerline to core power supply; b) sensing that a powerline connection is available by the at least one electrically powered device; c) generating a specific load by modulation of the power according to a unique identifier of the at least one electrically powered device on the powerline connection; d) sensing the generated specific load by the power supply device connected to the powerline connection; and e) extracting the unique identifier information from the specific load by the power supply device. An electrically powered device, a power supply device, a power distribution unit, and a corresponding system are also described.

Abstract: For allowing a prolongation of the operation time of individual network elements and/or of the whole network in a simple way a method for operating a wireless network is claimed, wherein the network comprises a number of network elements being configured for wireless communication with each other and for wireless energy transfer from one network element to another network element and wherein energy will be transferred wirelessly from one network element to another network element according to negotiations between the network elements for optimizing a network element's individual and/or network's overall energy budget and/or lifetime. Further, an according network is claimed, preferably for carrying out the above mentioned method.

Abstract: A method for energy consumption monitoring in an ICT environment, wherein the ICT environment (1) includes a multitude of energy consuming components (2, 3), at least partly the components (2, 3) being instrumented with elements for energy consumption monitoring and/or having assigned specific energy consumption models that derive one or more energy metrics for the respective component (2, 3) from the component's (2, 3) current performance metrics, is characterized in the steps of ascertaining changes of and/or related to the ICT environment (1) via an energy consumption monitoring controller (7), performing an assessment of available energy consumption monitoring techniques both instrumentation-based and model-based, based on the result of the assessment selecting one or more energy consumption monitoring techniques that best satisfy the change of the ICT environment (1) according to predefined policies. Furthermore, a corresponding monitoring system is described.

Abstract: A method of supporting power control in a communication network, the network including a plurality of network elements (1) that perform packet forwarding, wherein each network element (1) includes one or more ports—element ports (2)—, is characterized in the steps of assigning a flow table (4) to each of the network elements (1), wherein the flow table (4) includes flow entries (5) that specify via which element ports (2) to forward packets the network element (1) receives, deriving target sets from the flow tables (4), wherein a target set characterizes either a network element (1) as a whole—element target set—or an individual element port (2)—port target set—in terms of its utilization, and based on changes in the respective target sets, deciding on the enforcement of power states on the network elements (1) and/or the element ports (2).

Abstract: A communication network includes a plurality of network elements—communicating nodes—that are enabled to request the establishment of connections—flows—among each other, and a plurality of network elements—switches (3)—that support the routing of the flows. The network further includes elements for intercepting requests for flow establishment, at least one calculation module configured to preselect for each flow a set of possible network paths that are compliant with the flow's performance requirements and/or quality constraints, wherein each path includes a specific set of switches the flow has to traverse, and at least one selection module configured to apply a selection algorithm that analyses the load of switches that are contained in any network path of the preselected set of network paths for determining a single network path from the preselected set of network paths that is most suitable in terms of energy efficiency.

Abstract: A method for energy consumption monitoring in an ICT environment, wherein the ICT environment (1) includes a multitude of energy consuming components (2, 3), at least partly the components (2, 3) being instrumented with elements for energy consumption monitoring and/or having assigned specific energy consumption models that derive one or more energy metrics for the respective component (2, 3) from the component's (2, 3) current performance metrics, is characterized in the steps of ascertaining changes of and/or related to the ICT environment (1) via an energy consumption monitoring controller (7), performing an assessment of available energy consumption monitoring techniques both instrumentation-based and model-based, based on the result of the assessment selecting one or more energy consumption monitoring techniques that best satisfy the change of the ICT environment (1) according to predefined policies. Furthermore, a corresponding monitoring system is described.

Abstract: For providing a significant reduction of resource consumption and network traffic within a network a method for managing a network is claimed, the network including: a plurality of network elements, each of which being able to run at least one network management function and to store management information being necessary for running the at least one management function, the method being characterized by randomly activating and deactivating the at least one management function on one or more of the network elements by a randomization process. Further, an according network is claimed, preferably for carrying out the above mentioned method.