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发表于 2014-10-11 23:24:43| 字数 2,467| - 中国–北京–北京–朝阳区 联通
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不知道有多少人会用到网络唤醒的功能,这里提醒一下需要用到这个功能的朋友,因为系统限制,WIN8不支持关机网络唤醒,只支持休眠和睡眠唤醒。
The "Wake on LAN" (WOL) feature wakes a computer from a low-power state when a network adapter detects a WOL event. Typically, such an event is a specially constructed Ethernet packet. The default behavior in response to WOL events has changed from Windows 7 to Windows 8.
Windows 7
In Windows 7, the default shutdown operation puts the system into the classic shutdown state (S5), and all devices are put into the lowest power state (D3). WOL from S5 is not officially supported in Windows 7. However, some network adapters can be left armed for waking if enough residual power is available. Therefore, waking from S5 is possible on some systems if enough residual power is supplied to the network adapter even though the system is in the S5 state and devices are in D3.
Windows 8 and Windows 8.1
In Windows 8 and Windows 8.1, the default shutdown behavior puts the system into the hybrid shutdown state (S4), and all devices are put into D3. WOL from S4 or S5 is unsupported. Network adapters are explicitly not armed for WOL in either S5 or S4 cases because users expect zero power consumption and battery drain in the shutdown state. This behavior removes the possibility of invalid wake-ups when an explicit shutdown is requested. Therefore, WOL is supported only from sleep (S3) or hibernation (S4) states in Windows 8 and 8.1.
In Windows 8 and 8.1, hybrid shutdown (S4) stops user sessions but lets the contents of kernel sessions be written to the hard disk. This enables faster startups.
To disable the S4 state in Windows 8 and 8.1, follow these steps.
Note We do not recommend that you disable the hybrid shutdown (S4) state.
In Control Panel, open the Power Options item.
Click the Choose what the power buttons do link.
Clear the Turn on fast startup (recommended) check box.
Click Save Settings.
中文介绍:
网络适配器检测到的 WOL 事件时,"局域网唤醒"(WOL) 功能唤醒从低功耗状态的计算机。通常情况下,此类事件是专门构建的以太网数据包。响应 WOL 事件的默认行为已从 Windows 7 中,为 Windows 8。
Windows 7
Windows 7 默认关机操作会将系统放入经典关机状态 (S5),和所有设备都将都放入最低能耗状态 (D3)。在 Windows 7 中不提供正式支持从 S5 WOL。但是,某些网络适配器可以将留有用于唤醒的全部设备提供足够电量时。因此,从 S5 唤醒时可能会在某些系统上如果足够电量提供到网络适配器,即使系统处于 S5 状态并且设备处于 D3。
Windows 8 和 8.1 窗口
在 Windows 8 和 Windows 8.1,默认关机问题将系统放入混合关闭状态 (S4),和所有设备都将都放入 D3。从 S4 或 S5 WOL 不受支持。网络适配器是明确不掌握有关 WOL S4 或 S5 的情况下因为用户期望零功率消耗和电池电量处于关闭状态。请求显式关闭时,此行为将删除无效的唤醒 ups 的可能性。因此,只能从 (S3) 睡眠或休眠状态 (S4) 状态,Windows 8 和 8.1 中的支持 WOL。
在 Windows 8 和 8.1,混合关机 (S4) 停止用户会话,但允许内核会话写入到硬盘上的内容。这样,更快地启动。
若要禁用 Windows 8 和 8.1 S4 状态,请执行以下步骤。
注意我们不建议您禁用混合关机 (S4) 状态。
在控制面板中,打开电源选项项。
单击选择电源按钮所执行的操作链接。
清除启用快速启动 (推荐)复选框。
单击保存设置。
参考链接:
https://support.microsoft.com/kb/2776718/en-us?wa=wsignin1.0
中文参考链接:
http://support.microsoft.com/kb/2776718/zh-cn
PS:
网络唤醒的设置除了BIOS下必须开启Wake on LAN之外,系统下也必须要进行设置:
系统下有线网卡—属性—电源管理—允许此设备唤醒计算机(勾选),另外“允许计算机关闭此设备以节约电源”也一定要勾选,如果不勾,“允许此设备唤醒计算机”这项会变成灰色无法勾选 |
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