System and method for dynamic energy efficient ethernet control policy based on user or device profiles and usage parameters

• US 8,261,114 B2
• Filed: 05/18/2009
• Issued: 09/04/2012
• Est. Priority Date: 05/18/2009
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Diab, Wael William
• Primary Examiner(s): MISIURA, BRIAN THOMAS
• Application Number:
  US12/468,024
• Publication Number:
  US 20100293404A1
• Time in Patent Office: 1,205 Days
• Field of Search: 713/300, 713/310, 713/320, 713/324, 709/221
• US Class Current: 713/320
• CPC Class Codes: G06F 1/3209 Monitoring remote activity, e.g. over telephone lines or network connections
• CPC Class Codes: G06F 1/3287 by switching off individual functional units in the computer system
• CPC Class Codes: H04L 12/12 Arrangements for remote connection or disconnection of substations or of equipment thereof
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management
• CPC Class Codes: Y02D 30/00 Reducing energy consumption in communication networks
• CPC Class Codes: Y02D 30/50 in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

A system and method for dynamic energy efficient Ethernet (EEE) control policy based on user or device profiles and usage parameters. The analysis by an EEE control policy can consider user or device related EEE profile information that is either network propagated or retrieved from a network database. This EEE profile information can be used in combination with static settings established by an IT manager and the properties of the traffic on the link itself.

Claims

1. An energy efficient Ethernet method, comprising:

receiving, from a link partner on a port, an identifier of a device;

retrieving energy saving profile information for said device from a database using said received identifier, wherein said retrieving comprises retrieving work schedule information for said device;

analyzing link utilization information for said link in combination with said retrieved energy saving profile information; and

switching elements of said port into a power saving state based on a result of said analysis.

2. The method of claim 1, wherein said receiving comprises receiving a MAC address.

3. The method of claim 1, wherein said retrieving comprises retrieving a priority level for said device.

4. An energy efficient Ethernet method, comprising:

receiving a packet from a link partner;

retrieving energy saving classification information from said packet, wherein said energy saving classification information is based on work schedule information for a device that originated said packet;

analyzing, by an energy efficiency control policy, link utilization information for said link in combination with said retrieved energy saving classification information to produce an energy efficiency control signal; and

switching elements of a port interfaced with said link partner into a power saving state based on said energy efficiency control signal.

5. The system of claim 4, wherein said retrieving comprises retrieving from a header of said packet.

6. The system of claim 4, wherein said retrieving comprises retrieving an indicator that enables identification of a high performance/low energy saving classification and a low performance/high energy saving classification.

7. An energy efficient Ethernet method in an Ethernet device, comprising:

receiving, via a packet on a port, information that enables identification of an energy saving classification of a user or device, wherein said energy saving classification information is based on work schedule information for a user or device that is associated with an origination of said packet; and

determining, by an energy efficiency control policy, whether a port that supports communication associated with said user or device should enter into a power saving state, wherein said determination by said energy efficiency control policy is based on an analysis of link utilization information and said energy saving classification for said user or device.

8. The method of claim 7, wherein said receiving comprises receiving via a header of said packet.

9. The method of claim 8, wherein said receiving comprises receiving via an energy saving classification in said header of said packet.

10. The method of claim 7, further comprising transitioning said port to said power saving state upon said determination.

11. The method of claim 7, further comprising mapping said received information to an energy saving classification.