Method and apparatus for implementing low power consumption for data switching device, and data switching device thereof

• US 8,977,876 B2
• Filed: 03/14/2013
• Issued: 03/10/2015
• Est. Priority Date: 12/09/2011
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Yang, Xueren, Li, Jianzhao, Xiao, Wen, Wang, Yong
• Primary Examiner(s): Lee, Thomas
• Assistant Examiner(s): Prifti, Aurel
• Application Number:
  US13/828,577
• Publication Number:
  US 20130205155A1
• Time in Patent Office: 726 Days
• Field of Search: 370/318, 370/229, 370/235, 370/296, 370/401, 709/220, 714/4.2, 710/18
• US Class Current: 713/320
• CPC Class Codes: G06F 1/3234 Power saving characterised by the action undertaken
• CPC Class Codes: H04L 12/12 Arrangements for remote connection or disconnection of substations or of equipment thereof
• CPC Class Codes: H04L 49/40 Constructional details, e.g. power supply, mechanical construction or backplane
• CPC Class Codes: Y02D 30/50 in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

An apparatus for implementing low power consumption for data switching device includes a dormancy management module that controls an upper layer logic component in a device to enter a low power consumption state when a current state parameter of the device satisfies a preset dormancy configurationcondition; detects whether an energy consumption state of a transmission medium is active; and wakes up the upper layer logic component in the device to enter a normal working state if the energy consumption state of the transmission medium is active. When a preset condition is satisfied, upper layer logic components such as a CPU, a network processor and an optical module in the device, properly stop full-time operation to save energy.

Claims

1. A method for implementing low power consumption for a data switching device, wherein the data switching device comprises a wake-up physical port and a non-wake-up physical port, the method comprises:

controlling an upper layer logic component in the data switching device to enter into a low power consumption state, when a current state parameter of the data switching device satisfies a preset dormancy configuration condition, wherein the upper layer logic component comprises at least one of a central processing unit (CPU) and a network processor;

detecting whether an energy consumption state of a transmission medium corresponding to the wake-up physical port is active, wherein the detecting comprises;

identifying an energy detection state check bit of the wake-up physical port in a polling manner by using a serial management interface connected to a physical chip on which the wake-up physical port is arranged; and

determining the energy consumption state of the transmission medium corresponding to the wake-up physical port according to the identified energy detection state check bit; and

waking up the upper layer logic component in the data switching device to enter into a normal working state if the energy consumption state of the transmission medium corresponding to the wake-up physical port is active;

wherein an energy consumption state of a transmission medium corresponding to the non-wake-up physical port is active is not used as a condition for waking up the upper layer logic component.

2. The method according to claim 1, wherein the current state parameter of the data switching device satisfies the preset dormancy configuration condition when a current time of the device falls within a preset dormancy time period.

3. The method according to claim 1, wherein the controlling of the upper layer logic component in the data switching device to enter the low power consumption state comprises:

controlling the CPU in the data switching device to enter into a dormant state, or lowering a dominant working frequency of the CPU.

4. The method according to claim 1, wherein after controlling the upper layer logic component in the data switching device to enter into the low power consumption state, the method further comprises:

triggering a timing operation and waking up the upper layer logic component in the data switching device to enter into the normal working state when a timing value reaches a preset countdown value.

5. A networking device comprising:

an upper layer logic component, wherein the upper layer logic component comprises at least one of a central processing unit (CPU) and a network processor;

a physical layer chip, wherein the physical layer chip being arranged with a wake-up physical port and a non-wake-up physical port; and

an apparatus for implementing low power consumption for a data switching device wherein the apparatus for implementing low power consumption is configured to;

control the upper layer logic component to enter into a low power consumption state, when a current state parameter of the device satisfies a preset dormancy configuration condition;

detect whether an energy consumption state of a transmission medium corresponding to one physical port is active, and

wake up the upper layer logic component to enter into a normal working state if the energy consumption state of the transmission medium corresponding to the wake-up physical port is active, wherein an energy consumption state of a transmission medium corresponding to the non-wake-up physical port is active is not used as a condition for waking up the upper layer logic component, wherein the apparatus for implementing low power consumption further comprises;

a low power consumption control module configured to control the upper layer logic component to enter into the low power consumption state when the current state parameter of the data switching device satisfies the preset dormancy configuration condition; and

a wake-up control module configured to;

detect whether the energy consumption state of the transmission medium corresponding to the wake-up physical port is active, and wake up the upper layer logic component to enter into the normal working state if the energy consumption state of the transmission medium corresponding to the wake-up physical port is active; and

identify an energy detection state check bit of the wake-up physical port in a polling manner by using a serial management interface connected to the physical chip on which the wake-up physical port is arranged;

determine whether the energy consumption state of the transmission medium corresponding to the wake-up physical port according to the identified energy detection state check bit; and

wake the upper layer logic component to enter into the normal working state if the energy consumption state of the transmission medium corresponding to the wake-up physical port is active.

6. The networking device according to claim 5, wherein the low power consumption control module is integrated in the CPU of the data switching device, and the wake-up control module is integrated in a wake-up chip and connected to the CPU and the wake-up physical port respectively.

7. The networking device according to claim 5, wherein the low power consumption control module is configured to determine that the current state parameter of the data switching device satisfies the preset dormancy configuration condition when a current time of the data switching device falls within a preset dormancy time period;

and control the upper layer logic component to enter into the low power consumption state.

8. The networking device according to claim 5, wherein the apparatus for implementing low power consumption further comprises:

a countdown wake-up module configured to, trigger a timing operation after the low power consumption control module controls the upper layer logic component to enter into the low power consumption state; and

wake up the upper layer logic component to enter into the normal working state when a timing value reaches a preset countdown value.

9. The networking device according to claim 5, wherein the low power consumption control module and the wake-up control module are integrated in the CPU of the device.

10. The networking device according to claim 5, wherein the low power consumption control module is integrated in the CPU of the device, and the wake-up control module is integrated in a wake-up chip and connected to the CPU and the wake-up physical port respectively.