WO2013082807A1 - 数据交换设备低功耗实现方法及其装置和数据交换设备 - Google Patents

数据交换设备低功耗实现方法及其装置和数据交换设备 Download PDF

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Publication number
WO2013082807A1
WO2013082807A1 PCT/CN2011/083763 CN2011083763W WO2013082807A1 WO 2013082807 A1 WO2013082807 A1 WO 2013082807A1 CN 2011083763 W CN2011083763 W CN 2011083763W WO 2013082807 A1 WO2013082807 A1 WO 2013082807A1
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Prior art keywords
state
low
data exchange
physical port
power consumption
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PCT/CN2011/083763
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English (en)
French (fr)
Inventor
杨雪仁
李剑钊
肖文
王勇
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201180003822.XA priority Critical patent/CN102725997B/zh
Priority to ES11861895.8T priority patent/ES2625257T3/es
Priority to EP11861895.8A priority patent/EP2621127B1/en
Priority to PCT/CN2011/083763 priority patent/WO2013082807A1/zh
Priority to US13/828,577 priority patent/US8977876B2/en
Publication of WO2013082807A1 publication Critical patent/WO2013082807A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/40—Constructional details, e.g. power supply, mechanical construction or backplane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Definitions

  • the present invention relates to communications technologies, and in particular, to a data loss device low power consumption implementation method, an apparatus thereof, and a data exchange device. Background technique
  • the prior art proposes the concept of Energy-Efficient Ethernet, and specifies the implementation requirements of energy-efficient Ethernet through the IEEE 802.3az standard.
  • the standard IEEE802.3az is the first technical standard to target the dynamic energy-saving. It stipulates that after the physical layer (PHY) of the Ethernet is transmitted, the two parties negotiate to automatically enter the low-power mode.
  • the arrival of data can ensure the fast wake-up of relevant technical parameters into the normal working state, and greatly improve the dynamic energy-saving performance of the PHY chip when there is a service link (LINK).
  • LINK service link
  • the existing energy-efficient Ethernet technology only solves the energy-saving problem of the PHY chip, and the data exchange device in the Ethernet still has a phenomenon that the upper-level logic device cannot automatically enter the low-power state and the device runs at a high power consumption. Therefore, how to enable network devices to complete automatic low-power mode work poses a challenge to the high intelligence of network devices.
  • Embodiments of the present invention provide a method, an apparatus, and a data exchange device for implementing a low-power consumption of a data exchange device, so as to implement an effective low-power operation mechanism to reduce equipment energy consumption.
  • An embodiment of the present invention provides a method for implementing a low-power consumption of a data exchange device, including: when the current state parameter of the device meets a preset sleep configuration parameter, the device is controlled. The upper logic device enters a low power state;
  • the upper logic device in the device is woken up to enter a normal working state.
  • the embodiment of the invention further provides a device for implementing low power consumption, comprising:
  • a low power control module configured to: when the current state parameter of the device meets the preset sleep configuration parameter, control an upper logic device in the device to enter a low power consumption state;
  • the wake-up control module is configured to wake up the upper-level logic device in the device to enter a normal working state when the physical port detects that the energy consumption state of the transmission medium is active.
  • the embodiment of the present invention further provides a data exchange device, which includes an upper layer logic device and a physical layer chip.
  • the physical layer chip is provided with a physical port, and further includes a low power consumption implementation device for the data exchange device provided by the embodiment of the present invention.
  • the method for implementing low-power consumption of the data exchange device and the device and the data exchange device provided by the embodiment of the present invention can automatically control the upper-level logic device in the data exchange device to automatically enter the low-power state by automatically detecting the current state parameter of the device, and pass the The energy consumption status of the physical port transmission medium is automatically detected and used as external wake-up information to automatically bring the upper logic device into the normal operating mode.
  • FIG. 1 is a flow chart of a method for implementing low power consumption of a data exchange device according to Embodiment 1 of the present invention
  • FIG. 2A is a flowchart of a method for implementing a low-power consumption of a data exchange device according to Embodiment 2 of the present invention
  • FIG. 2B is a schematic structural diagram of a data exchange device according to Embodiment 2 of the present invention.
  • FIG. 3A is a flowchart of a method for implementing a low-power consumption of a data exchange device according to Embodiment 3 of the present invention
  • FIG. 3B is a schematic structural diagram of a data exchange device according to Embodiment 3 of the present invention.
  • FIG. 4 is a flowchart of a method for implementing low-power consumption of a data exchange device according to Embodiment 4 of the present invention
  • FIG. 5 is a schematic structural diagram of a device for implementing low-power consumption of a data exchange device according to Embodiment 5 of the present invention. detailed description
  • FIG. 1 is a flow chart of a method for implementing low power consumption of a data exchange device according to Embodiment 1 of the present invention.
  • the method provided in this embodiment is applicable to a data switching device.
  • the data switching device is a network device used for communication data forwarding and exchange, and can provide an electrical signal path for any two network nodes.
  • There are many transmission protocols and transmission media for electrical signals and the most common ones are transmission of electrical signals based on Ethernet, optical fibers, and the like.
  • a data exchange device may be a switch, a router, a gateway, a firewall server, etc., and a typical structure thereof includes a physical layer (PHY) chip and an upper layer logic device, and the data packet of the electrical signal controlled by the upper layer logic device is on the physical layer chip. Forwarding is implemented between the physical ports set up.
  • the upper logic devices in the data switching device usually include hardware such as a CPU and a link layer controller, such as other chips such as a network processor and an optical module.
  • the low-power implementation method of the data exchange device provided in this embodiment can be applied to the data exchange device of the above structure, and is implemented by the data exchange device low-power implementation device.
  • the device which may also be referred to as a sleep management module, may be implemented in the form of hardware and/or software, may be integrated in the CPU, or may be carried on a stand-alone chip.
  • the method in this embodiment specifically includes the following steps:
  • Step 110 When the sleep management module recognizes that the current state parameter of the device meets the preset sleep configuration parameter, the upper logic device in the control device enters a low power consumption state;
  • Step 120 The sleep management module detects, by using the physical port, that the energy consumption state of the transmission medium is activated, and the upper logic device in the wake-up device enters a normal working state.
  • the technical solution provided in this embodiment can preset the sleep configuration parameter, so that the sleep management module can automatically detect whether the current state parameter of the device meets the preset sleep configuration parameter, thereby controlling the upper logic device in the data exchange device to automatically enter the low The power consumption state, and by automatically detecting the energy consumption state of the transmission medium corresponding to the physical port, using it as an external wakeup information
  • the layer logic device automatically enters the normal operating mode.
  • the so-called low-power state can be a sleep state in which the operation is completely stopped, or an operation state in which the operating frequency is reduced to a small amount.
  • the above technical solution enables the upper logic device such as the CPU, the network processor, and the optical module in the device to appropriately stop the full-speed operation when the preset condition is met, and obtain energy-saving processing.
  • the operation of identifying whether the current state parameter of the device meets the preset sleep configuration parameter may be implemented in multiple manners.
  • the preset sleep configuration parameters can be pre-configured by the administrator, and can usually be configured according to the usage rules of the data exchange device. For example, if the switch device set in the company is used less during off-hours, you can configure the off-duty time to be the preset sleep configuration parameter. Of course, you can also configure other preset sleep periods as the preset sleep configuration parameters. Then, it is determined that the current state parameter of the device meets the preset sleep configuration parameter, and may be determined that the current state parameter of the device meets the preset sleep configuration parameter when the current time of the device is within the preset sleep period.
  • the technical solution can realize the timing sleep and the automatic wake-up of the upper logic device, and realize the power consumption energy-saving design in the idle period.
  • the capability consumption state of the transmission medium is activated as a trigger condition for waking up the upper logic device.
  • the detection of the transmission medium capability consumption state can be implemented by various means.
  • the energy consumption state of the transmission medium is detected by the physical port, and the energy detection state detection bit of the physical port is specifically polled by a serial management interface (SMI) with the physical chip;
  • SMI serial management interface
  • the status detection bit determines the energy consumption status of the transmission medium corresponding to the physical port.
  • the energy detection state detection bit is based on the energy-efficient Ethernet technology, and the energy detection state detection position is set when the energy consumption of the transmission medium meets the preset condition, and the energy consumption of the transmission medium can be determined by whether the energy detection state detection bit is set. Whether the status is active.
  • the data switching device is provided with a plurality of physical ports, and each port is configured with a respective energy detection state detection bit.
  • the sleep management module detects that the energy detection state detection bit is set by the SMI between the physical port and the physical port through the polling mode. When the bit is bit, it is regarded as the transmission medium energy consumption state connected to the port is activated.
  • PHY physical layer
  • FIG. 2A is a flowchart of a method for implementing a low-power consumption of a data exchange device according to Embodiment 2 of the present invention.
  • This embodiment may be based on any of the foregoing technical solutions, and the sleep management module in this embodiment is specifically It is implemented in software and integrated in the CPU, as shown in Figure 2B.
  • the CPU chip is connected to other upper logic device chips, and the CPU chip is also connected to the PHY chip through the SMI.
  • the preferred embodiment provided in this embodiment combines time management and physical port detection means, and specifically includes the following steps:
  • Step 210 Pre-configure a preset sleep period in the sleep management module.
  • the preset sleep period may be set to 16:00 in the afternoon- 8:00 in the next day;
  • Step 220 The sleep management module identifies whether the current time of the device is within a preset sleep period. For example, the sleep management module may periodically detect the current time of the device. If the current time of the device is within the preset sleep period, step 240 is performed, otherwise step 230 is performed; step 230, the sleep management module enters a state waiting for sleep, and returns to step 220;
  • Step 240 The sleep management module controls the upper logic device in the device to enter a low power consumption state.
  • the sleep management module since the sleep management module is hosted by the CPU, the CPU does not completely enter the sleep state, but enters the low speed operation.
  • the power consumption state specifically, the sleep management module forcibly reduces the working frequency of the CPU, and other functions of the CPU stop working, and only a small amount of power consumption supports the work of the sleep management module.
  • Other upper logic devices can go to sleep.
  • Step 250 The sleep management module identifies an energy detection state detection bit of the physical port by using SMI polling with the physical chip.
  • Step 260 When the sleep management module recognizes that the energy detection state detection bit of any physical port is set, the corresponding energy consumption state of the transmission medium is regarded as being activated, and the upper logic device in the wakeup device enters a normal working state.
  • the logic function of the sleep management module in the embodiments of the present invention at least includes: when the device is working normally, responsible for configuration and management of the sleep period, triggering of the low power state, and configuration recovery when exiting the low power state; In the power consumption state, the sleep management module polls the energy detection state detection bit of the PHY chip through the SMI interface of the PHY chip to determine whether to wake the device into a normal working state.
  • FIG. 3A is a flowchart of a method for implementing low-power consumption of a data exchange device according to Embodiment 3 of the present invention.
  • the sleep management module is composed of two parts of logical function modules, as shown in FIG. 3B.
  • the low-power control module that enters the low-power state in the working mode is implemented by software and integrated in the CPU, and the wake-up control module that controls wake-up from the sleep mode is carried by the wake-up chip.
  • the wake-up chip is a hardware chip that is independent of the CPU and other upper logic device chips.
  • the method of this embodiment includes the following steps:
  • Step 310 Pre-configure a preset sleep configuration parameter in the sleep management module, such as a preset sleep period;
  • Step 320 The sleep management module identifies whether the current state parameter of the device meets the preset sleep configuration parameter, and if yes, step 340 is performed, otherwise step 330 is performed;
  • Step 330 The sleep management module enters a state of waiting for hibernation, and returns to step 320.
  • Step 340 The sleep management module controls the upper logic device in the device to enter a low power consumption state.
  • the wakeup control in the sleep management module is performed.
  • the module is hosted by a separate chip, so the CPU and other upper-level logic devices can be controlled to enter a sleep state.
  • the CPU is in the interrupt wake-up mode, that is, enters the sleep state.
  • Other sleep states for example, may include low power means such as no power supply, full chip reset, chip down.
  • Step 350 The sleep management module identifies an energy detection state detection bit of the physical port by using SMI polling with the physical chip.
  • Step 360 When the dormancy management module identifies the energy detection state detection location bit of any physical port, the energy consumption state of the transmission medium corresponding to the physical port is activated, and the upper logic device in the wakeup device enters a normal working state, specifically The wake-up of the CPU by the interrupt wakes up the entire device to achieve optimal energy savings.
  • Embodiment 4 is a flowchart of a method for implementing a low-power consumption of a data exchange device according to Embodiment 4 of the present invention.
  • This embodiment may be based on the technical solution of any of the foregoing embodiments, and further adds a countdown management mode in the wake-up policy.
  • the timing operation is also triggered after the upper logic device in the control device enters the low power state, and when the timing value reaches the set countdown value, the upper logic device in the wakeup device enters the normal working state.
  • the method in this embodiment specifically includes the following steps:
  • Step 410 When the sleep management module recognizes that the current state parameter of the device meets the preset sleep configuration parameter, the upper logic device in the control device enters a low power consumption state.
  • Step 420 When entering a low power consumption state, the sleep management module sets a sleep flag bit; Step 430: The sleep management module triggers a timing operation;
  • step 430 the sleep management module determines whether the timing value reaches the set countdown value, and if so, proceeds to step 460, otherwise returns to step 440;
  • Step 450 the sleep management module detects whether the energy consumption state of the transmission medium is activated through the physical port, and if so, step 460 is performed, otherwise, step 450 is performed;
  • the step 440 monitors the countdown value and the step 450 detects the energy consumption state, which are the conditions for triggering the wakeup.
  • the order of execution is not limited thereto, and may be performed in parallel at the same time.
  • Step 460 The sleep management module wakes up the upper logic device in the device to enter a normal working state.
  • the change of the energy consumption state of the transmission medium corresponding to each physical port is used as a trigger condition for waking up.
  • some physical ports often have some online activation but there is actually no traffic transmission, such as the physical port connecting the printer.
  • At least one physical port may be configured as the wake-up physical port, and when it is detected that the energy consumption state of the transmission medium corresponding to the wake-up physical port is activated, the upper-level logic device is awake; for example, at least one physical port may be configured as the non-wake-up physical Port, the non-wake physical port corresponding to the transmission medium energy consumption state is activated, not as a condition to wake up the upper logic device.
  • a wake-up physical port by adding a preset configuration policy to the hibernation management module, or you can configure a non-wake physical port.
  • Non-wake physical ports include, but are not limited to, uplink ports.
  • One or more non-wake physical ports may be configured by the sleep management module to form a non-awake physical port group to avoid waking up the upper logic device in the active state of non-service transmission.
  • the step of detecting the energy consumption state of the transmission medium by using the physical port may include: determining a wake-up physical port according to the preset configuration policy, and detecting an energy consumption state of the corresponding transmission medium by waking up the physical port.
  • the design of the non-wake-up physical port group can be used to protect the activation information of the idle port, such as a network printer, a scanner, a service uplink port, and the like.
  • FIG. 5 is a schematic structural diagram of a device for implementing a low-power consumption of a data exchange device according to Embodiment 5 of the present invention.
  • the device includes a low-power control module 510 and a wake-up control module 520, where the low-power control module 510 is configured to identify the device.
  • the wake control module 520 is configured to wake up the upper layer in the device when the energy consumption state of the transmission medium is activated through the physical port.
  • the low-power control module may be specifically configured to: when the current time of the device is within the preset sleep period, determine that the current state parameter of the device meets the preset sleep configuration parameter, and the upper logic device in the control device enters the low Power consumption status.
  • the low-power control module may also be specifically configured to recognize that the CPU in the control device enters a sleep state when the current state parameter of the device meets the preset sleep configuration parameter, or reduces the working frequency of the CPU.
  • the wake-up control module may be specifically configured to: poll the energy detection state detection bit of the physical port by a serial management interface between the physical chip, and determine the physicality according to the identified energy detection state detection bit.
  • the energy consumption state of the transmission medium corresponding to the port when detecting that the energy consumption state of the corresponding transmission medium is active, waking up the upper logic device in the device to enter a normal working state.
  • the wake-up control module is specifically configured to determine, according to a preset configuration policy, a wake-up physical port, where the energy consumption state of the corresponding transmission medium is detected, and when detecting that the energy consumption state of the corresponding transmission medium is active, wake up
  • the upper logic device in the device enters the normal working state.
  • the data exchange device low power implementation device can further include a countdown wakeup module 530, as shown in FIG.
  • the countdown wake-up module 530 is configured to trigger a timing operation after the low-level control device 510 controls the upper-level logic device in the device to enter a low-power state, and when the timing value reaches the set countdown value, the upper-level logic device in the wake-up device enters the normal state.
  • Working status is configured to trigger a timing operation after the low-level control device 510 controls the upper-level logic device in the device to enter a low-power state, and when the timing value reaches the set countdown value, the upper-level logic device in the wake-up device enters the normal state.
  • the data exchange device low power consumption implementation device provided by the embodiment of the present invention may perform the low power consumption implementation method of the data exchange device provided by any embodiment of the present invention, and has a corresponding function module, which is equivalent to the above-mentioned sleep management module.
  • the data exchange device can complete the automatic detection into the low-power state according to the preset sleep configuration parameter, and automatically detect the energy-saving energy-saving design of the wake-up.
  • the embodiment of the present invention further provides a data exchange device, which includes an upper layer logic device and a physical layer chip, and the physical layer chip is provided with a physical port.
  • the device further includes a low power consumption implementation device for the data exchange device provided by the embodiment of the present invention.
  • the low-power control module and the wake-up control module can be integrated in the CPU to form a sleep management module, as shown in FIG. 2B, or the low-power control module is integrated in the CPU, and the wake-up control module is integrated in the CPU. In the wake-up chip, it is connected to the CPU and the physical port respectively, as shown in Figure 3B.
  • the technical solution provided by the embodiment of the present invention is to solve the idle time energy-saving design of the data exchange type network device, and has a good cross-domain application basis; as long as the device includes the PHY chip and the upper layer logic device, the embodiment of the present invention may be adopted.
  • the upper logic devices such as the CPU and the Link Switching Chip (LSW) automatically enter the low power state, and the PHY chip enters the energy detection mode, which can be implemented.
  • the data exchange device sleeps under preset conditions such as idle time and the function of automatically waking up through the physical port, which greatly reduces the power consumption of the device.
  • the device can automatically wake up without on-site and manual participation.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明实施例提供了一种数据交换设备低功耗实现方法及其装置，该方法包括：识别到设备当前状态参数满足预设休眠配置参数时，控制设备中的上层逻辑器件进入低功耗状态；通过物理端口检测到传输介质的能量消耗状态为激活时，唤醒设备中的上层逻辑器件进入正常工作状态。本发明实施例可以通过自动检测设备当前状态参数来控制数据交换设备中的上层逻辑器件自动进入低功耗状态，并通过自动检测物理端口传输介质的能量消耗状态，将其作为外部唤醒信息来使上层逻辑器件自动进入正常工作模式。使得在满足预设条件时，可以使设备中CPU、网络处理器和光模块等上层逻辑器件适当地停止全速工作，得到节能处理。

Description

数据交换设备低功耗实现方法及其装置和数据交换设备 技术领域 本发明涉及通信技术， 尤其涉及一种数据交换设备低功耗实现方法及其 装置和数据交换设备。 背景技术
目前， 网络技术迅猛发展， 高带宽入户、 企业云服务等需求增长明显。 作为高带宽接入的最便利的接入方式， 局域网 （ Local Area Network, 简称 LAN )接入应用比例越来越多， 而且未来是企业与楼宇接入的主流方式。
由于网络设备耗电大， 而企业用户在下班时间段对网络几乎没有需求， 相当于每天 2/3 的时间设备可能出于空闲状态， 会出现浪费功耗的现象。 现 有技术为解决这一技术问题， 提出了能效以太网 （ Energy-Efficient Ethernet ) 的概念， 通过 IEEE 802.3az 标准来规定了能效以太网的实现要求。 标准 IEEE802.3az是第一个把目标定位在动态节能的技术标准，其规定了以太网的 物理层（ Physical Layer, 简称 PHY )芯片在传送完数据后， 双方协商自动进 入低功耗模式， 当数据到来又可以保证快速唤醒进入正常工作状态的相关技 术参数要求， 大大提高 PHY芯片在有业务链接 ( LINK )时的动态节能性能。 然而， 现有能效以太网技术仅解决了 PHY芯片的节能问题， 而以太网中 的数据交换设备仍然存在由于上层逻辑器件无法自动进入低功耗状态而导致 设备高功耗运行的现象。 所以， 如何使网络设备能完成自动的低功耗模式工 作， 对网络设备的高度智能化提出了挑战。 发明内容 本发明实施例提供一种数据交换设备低功耗实现方法及其装置和数据交 换设备， 以实现有效的低功耗运行机制来降低设备能耗。 本发明实施例提供了一种数据交换设备低功耗实现方法， 包括： 识别到设备当前状态参数满足预设休眠配置参数时， 控制所述设备中的 上层逻辑器件进入低功耗状态；
通过物理端口检测到传输介质的能量消耗状态为激活时， 唤醒所述设备 中的上层逻辑器件进入正常工作状态。
本发明实施例还提供了一种备低功耗实现装置， 包括：
低功耗控制模块， 用于识别到设备当前状态参数满足预设休眠配置参数 时， 控制所述设备中的上层逻辑器件进入低功耗状态；
唤醒控制模块， 用于通过物理端口检测到传输介质的能量消耗状态为激 活时， 唤醒所述设备中的上层逻辑器件进入正常工作状态。
本发明实施例又提供了一种数据交换设备， 包括上层逻辑器件和物理层 芯片， 所述物理层芯片设置有物理端口， 还包括本发明实施例所提供的数据 交换设备低功耗实现装置。 本发明实施例提供的数据交换设备低功耗实现方法及其装置和数据交换 设备， 可以通过自动检测设备当前的状态参数来控制数据交换设备中的上层 逻辑器件自动进入低功耗状态， 并通过自动检测物理端口传输介质的能量消 耗状态， 将其作为外部唤醒信息来使上层逻辑器件自动进入正常工作模式。 使得在满足预设条件时， 可以使设备中的中央微处理器（ Central Processing Unit, 简称 CPU ) 、 网络处理器和光模块等上层逻辑器件适当地停止全速工 作， 得到节能处理。 附图说明 图 1为本发明实施例一所提供的数据交换设备低功耗实现方法的流程 图；
图 2A为本发明实施例二提供的数据交换设备低功耗实现方法的流程图； 图 2B为本发明实施例二所适用的数据交换设备结构示意图；
图 3A为本发明实施例三提供的数据交换设备低功耗实现方法的流程图； 图 3B为本发明实施例三所适用的数据交换设备结构示意图；
图 4为本发明实施例四提供的数据交换设备低功耗实现方法的流程图； 图 5为本发明实施例五提供的数据交换设备低功耗实现装置的结构示意 图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本发 明实施例中的附图， 对本发明实施例中的技术方案进行清楚、 完整地描述， 显然， 所描述的实施例是本发明一部分实施例， 而不是全部的实施例。 基于 本发明中的实施例， 本领域普通技术人员在没有作出创造性劳动前提下所获 得的所有其他实施例， 都属于本发明保护的范围。
实施例一
图 1为本发明实施例一所提供的数据交换设备低功耗实现方法的流程 图。
本实施例所提供的方法适用于数据交换设备中， 数据交换设备是用于通 信数据转发与交换的网络设备， 可以为任意两个网络节点提供电信号通路。 电信号的传输协议和传输介质可以有多种， 最为常见的是基于以太网、 光纤 等传输电信号。 举例来说， 这类数据交换设备可以是交换机、 路由器、 网关 和防火墙服务器等， 其典型结构包括物理层（PHY ) 芯片和上层逻辑器件， 由上层逻辑器件控制电信号的数据包在物理层芯片上设置的物理端口之间实 现转发。数据交换设备中的上层逻辑器件通常包括 CPU和链路层控制器等硬 件， 如网络处理器和光模块等其他芯片。
本实施例所提供的数据交换设备低功耗实现方法即可适用在上述结构的 数据交换设备中， 由数据交换设备低功耗实现装置来执行。 该装置又可称为 休眠管理模块， 可以由硬件和 /或软件的形式来实现， 可集成在 CPU中， 也 可采用独立芯片承载。 本实施例的方法具体包括如下步骤：
步骤 110、 休眠管理模块识别到设备当前状态参数满足预设休眠配置参 数时， 控制设备中的上层逻辑器件进入低功耗状态；
步骤 120、 休眠管理模块通过物理端口检测到传输介质的能量消耗状态 为激活时， 唤醒设备中的上层逻辑器件进入正常工作状态。
本实施例所提供的技术方案， 可以通过预设休眠配置参数， 使得休眠管 理模块能够自动检测到设备当前状态参数是否满足预设休眠配置参数， 从而 控制数据交换设备中的上层逻辑器件自动进入低功耗状态， 并通过自动检测 物理端口所对应传输介质的能量消耗状态， 将其作为外部唤醒信息， 来使上 层逻辑器件自动进入正常工作模式。 所谓低功耗状态， 可以是完全停止工作 的休眠状态， 也可以是降低工作主频仅有少量消耗的运转状态。 上述技术方 案使得在满足预设条件时， 可以使设备中 CPU、 网络处理器和光模块等上层 逻辑器件适当地停止全速工作， 得到节能处理。
在上述实施例技术方案中， 识别设备当前状态参数是否满足预设休眠配 置参数的操作可以有多种实现方式。 举例来说， 预设休眠配置参数可以由管 理人员预先配置， 通常可根据对数据交换设备的使用规律来配置。 例如对于 公司中设置的交换机设备， 其在下班时间的使用量降低， 则可以配置下班时 间段为预设休眠配置参数， 当然也可以配置其他预设休眠时段作为预设休眠 配置参数。 则识别到设备当前状态参数满足预设休眠配置参数具体可以为识 别到设备的当前时间处于预设休眠时段内时， 确定为设备当前状态参数满足 预设休眠配置参数。 该技术方案可以实现上层逻辑器件的定时休眠和自动唤 醒， 在空闲时段实现功耗节能设计。
上述实施例中， 传输介质的能力消耗状态为激活作为唤醒上层逻辑器件 的一个触发条件。 传输介质能力消耗状态的检测可以采用多种手段来实现。
优选可基于物理端口上采用的能效以太网技术来检测。 则通过物理端口 检测传输介质的能量消耗状态具体可以通过与物理芯片之间的串行管理接口 ( Serial Management Interface, 简称 SMI )轮询识别物理端口的能量探测状态 检测位； 根据识别到的能量探测状态检测位确定物理端口对应的传输介质的 能量消耗状态。 通常能量探测状态检测位基于能效以太网技术， 在传输介质 的能量消耗满足预设条件时就将能量探测状态检测位置位， 则由能量探测状 态检测位是否置位就可确定传输介质的能量消耗状态是否为激活。 通常数据 交换设备都设置很多物理端口，各端口均配置有各自的能量探测状态检测位， 休眠管理模块通过轮询方式， 在通过与某物理端口之间的 SMI检测到能量探 测状态检测位被置位时，即视为该端口所连的传输介质能量消耗状态为激活。
或者， 还可以采用其他技术来检测物理端口所连传输介质的能量消耗状 态， 例如， 一些物理层（PHY )芯片采用某一特殊引脚， 标识能量检测状态。
实施例二
图 2A为本发明实施例二提供的数据交换设备低功耗实现方法的流程图， 本实施例可以以上述任意技术方案为基础， 且本实施例中休眠管理模块具体 是采用软件实现， 集成于 CPU中， 如图 2B所示。 CPU芯片与其他上层逻辑 器件芯片相连， 且 CPU芯片还通过 SMI与 PHY芯片相连。 本实施例所提供 的优选实施方案， 结合了时间管理和物理端口的检测手段， 具体包括如下步 骤：
步骤 210、 在休眠管理模块中预先配置预设休眠时段， 例如， 对于公司， 该预设休眠时段可以设置为下午 16: 00-次日上午 8: 00;
步骤 220、 休眠管理模块识别设备的当前时间是否处于预设休眠时段内， 举例来说， 休眠管理模块可以周期性间隔地检测识别设备的当前时间。 若设 备的当前时间处于预设休眠时段内， 则执行步骤 240, 否则执行步骤 230; 步骤 230、 休眠管理模块进入等待休眠的状态， 返回执行步骤 220;
步骤 240、 休眠管理模块控制设备中的上层逻辑器件进入低功耗状态； 在本实施例中， 由于休眠管理模块由 CPU承载， 所以 CPU不会完全进 入休眠状态， 而是进入慢速工作的低功耗状态， 具体可以是休眠管理模块强 制降低 CPU的工作主频， CPU的其他功能停止工作，仅有少量能耗支持休眠 管理模块的工作。 而其他上层逻辑器件可进入休眠状态。
步骤 250、 休眠管理模块通过与物理芯片之间的 SMI轮询识别物理端口 的能量探测状态检测位；
步骤 260、 当休眠管理模块识别到任意物理端口的能量探测状态检测位 置位时， 视为对应的传输介质能量消耗状态为激活， 则唤醒设备中的上层逻 辑器件进入正常工作状态。
本发明各实施例中的休眠管理模块逻辑功能至少包括： 在设备正常工作 时， 负责休眠时段的配置与管理、 低功耗状态的触发与退出低功耗状态时的 配置恢复； 在设备处于低功耗状态时， 休眠管理模块通过 PHY芯片的 SMI 接口对 PHY芯片的能耗探测状态检测位进行轮询检测，判断是否唤醒设备进 入正常工作状态。
实施例三
图 3A为本发明实施例三所提供的数据交换设备低功耗实现方法的流程 图， 与上述实施例的区别在于， 休眠管理模块由两部分逻辑功能模块组成， 如图 3B所示，控制在工作模式下进入低功耗状态的低功耗控制模块由软件实 现， 集成于 CPU中， 控制从休眠模式唤醒的唤醒控制模块由唤醒芯片承载， 唤醒芯片是独立于 CPU和其他上层逻辑器件芯片的硬件芯片。则本实施例的 方法包括如下步骤：
步骤 310、 在休眠管理模块中预先配置预设休眠配置参数， 如预设休眠 时段；
步骤 320、 休眠管理模块识别设备的当前状态参数是否满足预设休眠配 置参数， 若是， 则执行步骤 340, 否则执行步骤 330;
步骤 330、 休眠管理模块进入等待休眠的状态， 返回执行步骤 320; 步骤 340、 休眠管理模块控制设备中的上层逻辑器件进入低功耗状态； 在本实施例中， 由于休眠管理模块中的唤醒控制模块由独立芯片承载， 所以可控制 CPU和其他上层逻辑器件均进入休眠状态， 例如 CPU处于中断 唤醒模式， 即进入休眠状态。 其他休眠状态， 举例来说， 可以包括不供电、 整片复位、 芯片掉电 （power down )等低功耗手段。
步骤 350、 休眠管理模块通过与物理芯片之间的 SMI轮询识别物理端口 的能量探测状态检测位；
步骤 360、 当休眠管理模块识别到任意物理端口的能量探测状态检测位 置位时， 视为物理端口对应的传输介质能量消耗状态为激活， 则唤醒设备中 的上层逻辑器件进入正常工作状态，具体可通过中断唤醒 CPU从而唤醒整个 设备， 达到最优的节能效果。
实施例四
图 4为本发明实施例四提供的数据交换设备低功耗实现方法的流程图， 本实施例可以以上述任意实施例技术方案为基础， 且进一步增加了唤醒策略 中的倒计时管理方式。 在控制设备中的上层逻辑器件进入低功耗状态之后还 触发计时操作， 当计时值达到设定倒计时值时， 唤醒设备中的上层逻辑器件 进入正常工作状态。 本实施例的方法具体包括如下步骤：
步骤 410、 休眠管理模块识别到设备当前状态参数满足预设休眠配置参 数时， 控制设备中的上层逻辑器件进入低功耗状态；
步骤 420、 在进入低功耗状态时， 休眠管理模块设置休眠标志位； 步骤 430、 休眠管理模块触发计时操作；
上述步骤 420和步骤 430的执行顺序并不限定， 可以先执行步骤 430再 执行步骤 420, 或者也可以同时并行执行。 步骤 440、 休眠管理模块判断计时值是否达到设定倒计时值， 若是， 则 执行步骤 460, 否则返回执行步骤 440;
步骤 450、 休眠管理模块通过物理端口检测传输介质的能量消耗状态是 否为激活， 若是， 则执行步骤 460, 否则返回执行步骤 450;
上述步骤 440对倒计时值的监测和步骤 450对能量消耗状态的检测， 均 为触发唤醒的条件， 其执行的先后顺序并不限于此， 也可以同时并行执行。
步骤 460、 休眠管理模块唤醒设备中的上层逻辑器件进入正常工作状态。 在上述各实施例中， 各物理端口所对应的传输介质能量消耗状态变化作 为唤醒的触发条件， 在此基础上， 优选是进一步配置部分物理端口的传输介 质状态变化可触发唤醒。 在实际使用中， 有些物理端口经常会出现一些在线 激活但实际上并无业务传输的干扰， 例如连接打印机的物理端口。 因此， 可 以配置至少一个物理端口作为唤醒物理端口， 当检测到唤醒物理端口对应的 传输介质能量消耗状态为激活时， 唤醒上层逻辑器件； 举例来说， 还可以配 置至少一个物理端口作为非唤醒物理端口， 非唤醒物理端口对应的传输介质 能量消耗状态为激活， 不作为唤醒上层逻辑器件的条件。 举例来说， 可以通 过在休眠管理模块中添加预设配置策略来配置唤醒物理端口， 也可以配置非 唤醒物理端口。 非唤醒物理端口包括但不限于上行端口。 可以由休眠管理模 块配置一个或多个非唤醒物理端口， 构成非唤醒物理端口组， 避免非业务传 输的激活状态唤醒上层逻辑器件。
则通过物理端口检测传输介质的能量消耗状态的步骤具体可包括： 根据 预设配置策略确定唤醒物理端口， 通过唤醒物理端口检测对应的传输介质的 能量消耗状态。 该技术方案中， 通过非唤醒物理端口组的设计可以艮好的屏 蔽常激活但空闲端口的设^叚激活信息， 例如： 网络打印机、 扫描仪、 业务 上行口等。
实施例五
图 5为本发明实施例五提供的数据交换设备低功耗实现装置的结构示意 图， 该装置包括低功耗控制模块 510和唤醒控制模块 520, 其中， 低功耗控 制模块 510用于识别到设备当前状态参数满足预设休眠配置参数时， 控制设 备中的上层逻辑器件进入低功耗状态； 唤醒控制模块 520用于通过物理端口 检测到传输介质的能量消耗状态为激活时， 唤醒设备中的上层逻辑器件进入 正常工作状态。
在优选方案中， 低功耗控制模块可具体用于识别到设备的当前时间处于 预设休眠时段内时， 确定为设备当前状态参数满足预设休眠配置参数， 控制 设备中的上层逻辑器件进入低功耗状态。
对于装置的不同软硬件实现方案， 低功耗控制模块还可具体用于识别到 设备当前状态参数满足预设休眠配置参数时，控制设备中的 CPU进入休眠状 态， 或降低 CPU的工作主频。
在上述技术方案的基础上， 唤醒控制模块具体可用于通过与物理芯片之 间的串行管理接口轮询识别物理端口的能量探测状态检测位， 根据识别到的 所述能量探测状态检测位确定物理端口对应的传输介质的能量消耗状态， 当 检测到对应的传输介质的能量消耗状态为激活时， 唤醒所述设备中的上层逻 辑器件进入正常工作状态。
或者， 唤醒控制模块具体可用于根据预设配置策略确定唤醒物理端口， 通过所述唤醒物理端口检测对应的传输介质的能量消耗状态， 当检测到对应 的传输介质的能量消耗状态为激活时， 唤醒设备中的上层逻辑器件进入正常 工作状态。
该数据交换设备低功耗实现装置还可进一步包括倒计时唤醒模块 530, 如图 5所示。 倒计时唤醒模块 530用于在低功耗控制模块 510控制设备中的 上层逻辑器件进入低功耗状态之后， 触发计时操作， 当计时值达到设定倒计 时值时， 唤醒设备中的上层逻辑器件进入正常工作状态。
本发明实施例所提供的数据交换设备低功耗实现装置可以执行本发明任 意实施例所提供的数据交换设备低功耗实现方法， 具备相应的功能模块， 相 当于上述的休眠管理模块。 通过数据交换设备低功耗实现装置的设置， 可以 实现数据交换设备根据预设休眠配置参数完成自动检测进入低功耗状态， 并 自动检测唤醒的能耗节能设计。
本发明实施例还提供了一种数据交换设备， 包括上层逻辑器件和物理层 芯片， 物理层芯片设置有物理端口， 该设备还包括本发明实施例所提供的数 据交换设备低功耗实现装置。
低功耗控制模块和唤醒控制模块可集成于 CPU中， 构成休眠管理模块， 如图 2B所示， 或者， 低功耗控制模块集成在 CPU中， 唤醒控制模块集成于 唤醒芯片中， 与 CPU和物理端口分别相连， 如图 3B所示。
本发明实施例所提供的技术方案， 出发于解决数据交换类网络设备的空 闲时段节能设计， 其具良好跨领域应用基础； 只要设备中包含 PHY芯片与上 层逻辑器件， 均可以采用本发明实施例的方案进行相应的空闲检测与唤醒操 作。 所以， 本发明实施例提供的数据交换设备可以为交换机、 路由器、 网关 或防火墙服务器等。
本发明各实施例的技术方案， 在休眠模式下， CPU、链路交换芯片（Link Switching Chip, 简称 LSW )等上层逻辑器件均自动进入低功耗状态、 PHY 芯片进入能耗探测模式， 可以实现数据交换设备在空闲时段等预设条件下的 休眠与通过物理端口自动唤醒这一功能， 大大降低了设备的耗电量。 设备休 眠时在物理端口有业务要求时， 设备可以自动唤醒不需要现场及人工参与。
本领域普通技术人员可以理解： 实现上述各方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成。 前述的程序可以存储于一计算机可 读取存储介质中。 该程序在执行时， 执行包括上述各方法实施例的步骤； 而 前述的存储介质包括： ROM, RAM, 磁碟或者光盘等各种可以存储程序代码 的介质。
最后应说明的是： 以上各实施例仅用以说明本发明的技术方案， 而非对 其限制； 尽管参照前述各实施例对本发明进行了详细的说明， 本领域的普通 技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改， 或者对其中部分或者全部技术特征进行等同替换； 而这些修改或者替换， 并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

1、 一种数据交换设备低功耗实现方法， 其特征在于， 包括： 识别到设备当前状态参数满足预设休眠配置参数时， 控制所述设备中的 上层逻辑器件进入低功耗状态；
通过物理端口检测到传输介质的能量消耗状态为激活时， 唤醒所述设备 中的上层逻辑器件进入正常工作状态。
2、 根据权利要求 1所述的数据交换设备低功耗实现方法， 其特征在于， 所述通过物理端口检测传输介质的能量消耗状态包括：
根据预设配置策略确定唤醒物理端口， 通过所述唤醒物理端口检测对应 的传输介质的能量消耗状态。
3、根据权利要求 1或 2所述的数据交换设备低功耗实现方法， 其特征在 于， 所述通过物理端口检测传输介质的能量消耗状态包括：
通过与物理芯片之间的串行管理接口轮询识别所述物理端口的能量探测 状态检测位；
根据识别到的所述能量探测状态检测位确定物理端口对应的传输介质的 能量消耗状态。
4、根据权利要求 1或 2所述的数据交换设备低功耗实现方法， 其特征在 于， 所述识别到设备当前状态参数满足预设休眠配置参数包括：
识别到所述设备的当前时间处于预设休眠时段内时， 确定为所述设备当 前状态参数满足预设休眠配置参数。
5、根据权利要求 1或 2所述的数据交换设备低功耗实现方法， 其特征在 于， 所述控制所述设备中的上层逻辑器件进入低功耗状态至少包括：
控制所述设备中的 CPU进入休眠状态， 或降低 CPU的工作主频。
6、根据权利要求 1或 2所述的数据交换设备低功耗实现方法， 其特征在 于， 在控制设备中的上层逻辑器件进入低功耗状态之后， 还包括：
触发计时操作， 当计时值达到设定倒计时值时， 唤醒所述设备中的上层 逻辑器件进入正常工作状态。
7、 一种数据交换设备低功耗实现装置， 其特征在于， 包括：
低功耗控制模块， 用于识别到设备当前状态参数满足预设休眠配置参数 时， 控制所述设备中的上层逻辑器件进入低功耗状态； 唤醒控制模块， 用于通过物理端口检测到传输介质的能量消耗状态为激 活时， 唤醒所述设备中的上层逻辑器件进入正常工作状态。
8、 根据权利要求 7所述的数据交换设备低功耗实现装置， 其特征在于， 所述唤醒控制模块具体用于根据预设配置策略确定唤醒物理端口， 通过所述 唤醒物理端口检测对应的传输介质的能量消耗状态， 当检测到所述对应的传 输介质的能量消耗状态为激活时， 唤醒所述设备中的上层逻辑器件进入正常 工作状态。
9、根据权利要求 7或 8所述的数据交换设备低功耗实现装置， 其特征在 于， 所述唤醒控制模块具体用于通过与物理芯片之间的串行管理接口轮询识 别所述物理端口的能量探测状态检测位， 根据识别到的所述能量探测状态检 测位确定物理端口对应的传输介质的能量消耗状态， 当检测到所述对应的传 输介质的能量消耗状态为激活时， 唤醒所述设备中的上层逻辑器件进入正常 工作状态。
10、 根据权利要求 7或 8所述的数据交换设备低功耗实现装置， 其特征 在于， 所述低功耗控制模块具体用于识别到所述设备的当前时间处于预设休 眠时段内时， 确定为所述设备当前状态参数满足预所述设休眠配置参数， 控 制所述设备中的上层逻辑器件进入低功耗状态。
11、 根据权利要求 7或 8所述的数据交换设备低功耗实现装置， 其特征 在于， 还包括：
倒计时唤醒模块， 用于在所述低功耗控制模块控制所述设备中的上层逻 辑器件进入低功耗状态之后， 触发计时操作， 当计时值达到设定倒计时值时， 唤醒所述设备中的上层逻辑器件进入正常工作状态。
12、 一种数据交换设备， 包括上层逻辑器件和物理层芯片， 所述物理层 芯片设置有物理端口， 其特征在于： 还包括权利要求 7-11任一所述的数据交 换设备低功耗实现装置。
13、 根据权利要求 12所述的数据交换设备， 其特征在于： 所述低功耗控 制模块和唤醒控制模块集成于 CPU中。
14、 根据权利要求 12所述的数据交换设备， 其特征在于：
所述低功耗控制模块集成在 CPU中，所述唤醒控制模块集成于唤醒芯片 中， 与所述 CPU和所述物理端口分别相连。
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