Patent ID: 8811208
Filing Date: 2014-08-19
Classification: H04L

Abstract:
1. A first network node with a power conserving capability, the first network node comprising: a network interface for transmitting and receiving data; and a data processing system coupled to the network interface, the data processing system being configured such that, in response to the first network node receiving a particular message from a second network node, the data processing system performs a process comprising: (a) determining a first component of the first network node to which the particular message pertains; (b) determining a utilization of the first component of the first network node; and (c) causing a power state of the first component of the first network node to be modified based on the determined utilization of the first component and a received power policy, wherein the power policy maps different power states to different utilization values, and the step of determining the utilization of the first component comprises determining an amount of currently reserved resources for the first component, wherein the particular message is a resource reservation request message transmitted from the second network node, the resource reservation request message including information identifying a data flow and a desired quality of service for the data flow, determining the utilization of the first component comprises i) determining the amount of currently reserved resources for the first component and ii) determining an amount of resources being requested for reservation by the resource reservation request, the process further comprises: adding the amount of currently reserved resources with the amount of resources being requested for reservation by the resource reservation request, thereby determining a total resource amount; determining whether the determined total resource amount exceeds a resource limit; and in response to determining that the total resource amount exceeds the resource limit, determining whether the current power state for the first component is currently at its maximum level, and the step of modifying the power state is performed in response to the determination that the power state for the first component is not currently at its maximum level.