Method for ethernet power savings on link aggregated groups
AssigneeHewlett-Packard Development Company, L.P.
InventorsDavid J. KOENEN, Mike Chuang
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Abstract
This invention provides the ability to significantly lower the power consumed by a group of Ethernet links when organized in a Link Aggregation Group. When the server or switch senses low bandwidth utilization across multiple links in the group, it will negotiate the transition of un-necessary links to a lower power state. When the bandwidth requirements increases, the algorithm will quickly re-establish links and distribute the Ethernet traffic across the multiple links when necessary.
Claims19
A system for conserving power in an Ethernet network, comprising:
- a Link Aggregation Group that includes at least two Ethernet links;
- a bandwidth monitor for obtaining bandwidth utilization of the Link Aggregation Group;
- a LAG adjuster for adjusting a number of Ethernet links in the Link Aggregation Group in a full power state based upon the bandwidth utilization obtained by a bandwidth utilization monitor.
A method of conserving power in a Link Aggregation Group comprising:
- monitoring bandwidth utilization of the Link Aggregation Group;
- comparing bandwidth utilization with available bandwidth;
- determining if bandwidth utilization is lower than a threshold amount;
- and
- if bandwidth is lower than a threshold amount, adjusting a number of Ethernet links in the Link Aggregation Group in a full power state.
A system for conserving power in an Ethernet network, comprising:
- means for maintaining a Link Aggregation Group that includes at least two Ethernet links;
- means for obtaining bandwidth utilization of the Link Aggregation Group;
- and
- means for adjusting the number of Ethernet links in the Link Aggregation Group in a full power state based upon the bandwidth utilization obtained by a bandwidth utilization monitor.
Dependencies are inferred from the claim text.