netflix_如何查看您的ISP是否限制了Netflix

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There has been a whole lot of talk in the news lately of the rocky relationship between streaming giant Netflix and broadband internet providers. Is it possible to tell if your ISP is messing with your Netflix connection and degrading the quality?

最近，有关流媒体巨头Netflix与宽带互联网提供商之间的僵硬关系的新闻引起了很多讨论。 是否可以判断您的ISP是否干扰了Netflix连接并降低了质量？

Dear How-To Geek,

亲爱的How-To Geek，

I read a couple of the articles about Netflix and their fight with ISPs that you guys shared in recent newsletters [Ed. note: Our daily email newsletter includes a “What We’re Reading from Around the Web” section]. Maybe I’m just imagining it or maybe I’m asking to much of my mediocre broadband connection, but I swear Netflix videos have more moments of lag, dropped frames, and artifacts cropping up than they used to.

我读了一些你们在最近的新闻通讯中分享的有关Netflix及其与ISP的斗争的文章[ Ed。 注意：我们的每日电子邮件新闻通讯包括“我们在网上阅读的内容”部分 。 也许我只是在想像它，或者是在要求我进行许多平庸的宽带连接，但是我发誓Netflix视频比以往具有更多的延迟，丢帧和伪影现象。

Is there any way for me to actually test whether or not my ISP is messing with my Netflix stream?

我有什么办法可以实际测试我的ISP是否与Netflix流搞混了？

Sincerely,

真诚的

Netflix Curious

Netflix好奇

Determining if your ISP is specifically messing with the bandwidth they allocate to Netflix is difficult to ascertain with absolute certainty. That said, we can conduct some simple testing to see what your connection speed is to the Netflix servers, check how Netflix ranks your ISP, and otherwise get a feel for whether or not there’s a good chance your ISP is engaging in some thoroughly un-net-neutral hijinks.

很难绝对确定您的ISP是否专门弄乱了他们分配给Netflix的带宽。 也就是说，我们可以进行一些简单的测试，以查看您与Netflix服务器的连接速度是多少，检查Netflix如何对您的ISP进行排名，否则就可以感觉到您的ISP是否有很好的机会完全脱离了ISP，净中性希金克斯。

Netflix includes a variety of sample video feeds for you to use to test your connection and devices. If you’re logged into Netflix and search for “example short” you’ll find a variety of them intended to showcase different frame rates, resolutions, and so on. The one we’re interested in looking at is called “Example Short 23.976” (Note: that link will only work if you’re logged into your Netflix account).

Netflix包括各种示例视频供稿，供您用来测试连接和设备。 如果您登录Netflix并搜索“ example short”，您会发现它们旨在展示不同的帧频，分辨率等。 我们感兴趣的一个叫做“ Example Short 23.976 ”(注意：该链接仅在您登录Netflix帐户后才有效)。

Example Short 23.976 is a little 11 minute short film that features a scenic little villa with a bubbling fountain, an energetic guy running around the villa, dancing, and performing little stunts, and other activities. The entire video is a bit nonsensical, but it’s not there to win an Oscar, it’s there to show lots of onscreen movement and test transmission speeds and frame rates.

示例短片23.976是一部11分钟的短片，其中包括一个风景秀丽的带有冒泡喷泉的小别墅，一个精力充沛的家伙在别墅周围奔跑，跳舞，表演特技和其他活动。 整个视频有点荒谬，但是并不是要赢得奥斯卡奖，而是要展示许多屏幕上的运动并测试传输速度和帧速率。

When you load up the video, you’ll see a bright yellow block of text in the upper left corner with values flagged BITRATE, RES, and PAR:

加载视频时，您会在左上角看到一个亮黄色的文本块，其值标记为BITRATE，RES和PAR：

These values stand for the bitrate (or transmission speed), the resolution (or dimensions of the video feed as it is fed to your device, not the actual resolution the screen is capable of), and pixel-aspect-ratio (which will be 4:3 for standard definition video and 1:1 for high definition video).

这些值代表比特率(或传输速度)，分辨率(或视频馈送至设备的视频馈送尺寸，而不是屏幕能够提供的实际分辨率)以及像素长宽比(标清视频为4：3，高清视频为1：1)。

The values correspond to fixed streaming rate/resolution/aspect-ratio combinations that Netflix has optimized for available bandwidth/display combinations. Here are the current available combinations as well as the amount of bandwith per hour, in GB, you consume watching on each setting (compiled and organized by a helpful home theater forum participant):

这些值对应于Netflix针对可用带宽/显示组合优化的固定流速率/分辨率/纵横比组合。 以下是当前可用的组合以及每小时带宽的使用量(以GB为单位)，您消耗每种设置(由有用的家庭影院论坛参与者编译和组织)的观看次数：

Note: the top three video quality options in the chart above, the three with 1920 x 1080 resolution, are part of Netflix’s new SuperHD quality tier and are only displayed on certain apps and devices and only on movies and television shows flagged as SuperHD. As such, unless you’re specifically watching a SuperHD video on a SuperHD enabled device, the highest you’ll see is 3000Kbps/1280×720 (the Example Short will max out at these settings).

注意：上表中的前三个视频质量选项，即1920 x 1080分辨率的三个，是Netflix新的SuperHD质量等级的一部分，仅在某些应用和设备上显示，并且仅在标记为SuperHD的电影和电视节目中显示。 因此，除非您专门在启用SuperHD的设备上观看SuperHD视频，否则您将看到的最高值为3000Kbps / 1280×720(在这些设置下，示例短片将最大化)。

So how can we put this information to good use? Netflix has no reason to limit our connection to their services (unless we expressly, in our account settings, instruct them to do so by setting our video quality to medium or low). Any dip in video quality, then can be attributed to something between the Netflix servers and the device we’re viewing the video on.

那么我们如何才能充分利用这些信息呢？ Netflix没有理由限制我们与他们的服务的连接(除非我们明确地在我们的帐户设置中通过将我们的视频质量设置为中或低来指示他们这样做)。 视频质量的任何下降，都可以归因于Netflix服务器与我们正在观看视频的设备之间的某种情况。

To simulate limited bandwidth, we set up a very intensive download queue to purposely decrease the amount of available bandwidth and then fired up the Example Short test film. Here’s a screenshot of the video quality and readout:

为了模拟有限的带宽，我们设置了一个非常密集的下载队列，以有目的地减少可用带宽的数量，然后启动Example Short测试影片。 这是视频质量和读数的屏幕截图：

For a zippy broadband connection, that’s terrible. Viewed at full screen on a large monitor or television set it looks like you’re watching an old RealPlayer video. After we paused the huge download to free up our connection, we reloaded the video. Here’s the new read out with the connection wide open:

对于快速的宽带连接，这太糟糕了。 在大型监视器或电视机上全屏查看，就好像您正在观看旧的RealPlayer视频。 在我们暂停大量下载以释放我们的连接之后，我们重新加载了视频。 这是连接已完全打开的新读数：

We’re now at the top bitrate/resolution quality for a non-SuperHD device/stream. It’s all the crisp and high quality video you could hope for.

对于非SuperHD设备/流，我们现在处于最高的比特率/分辨率质量。 这就是您所希望的所有清晰而高质量的视频。

The great thing about using Example Short 23.976 is that all the benchmarks are handled server side by Netflix. You can load the video on any device that will play Netflix videos and you’ll get a useful readout in the corner. (If you’re viewing videos on your computer you can hold CTRL+ALT+S and click on the viewer window to get additional readouts but these aren’t as clear and immediately useful, nor are they available on all devices).

使用Example Short 23.976的伟大之处在于，所有基准测试都是由Netflix在服务器端处理的。 您可以将视频加载到将播放Netflix视频的任何设备上，并在角落获得有用的读数。 (如果您正在计算机上观看视频，则可以按住CTRL + ALT + S并单击查看器窗口以获取其他读数，但这些读数并不清晰且立即可用，也不在所有设备上都可用)。

Once you have the readout and have determined that you’re not getting the top speed for your connection/device then it’s up to you to start doing some additional legwork to figure out why you’re not getting the best possible connection.

一旦获得读数并确定您无法获得最高的连接/设备速度，那么您就可以开始做其他工作来弄清楚为什么无法获得最佳连接。

The most obvious stop is to swing by Netflix’s ISP Speed Index. Netflix does quality assurance monitoring on the different ISPs that distribute video and, wall-of-shame style, points out who appears to be messing with their video streams.

最明显的停止是根据Netflix的ISP Speed Index进行调整 。 Netflix对分发视频的不同ISP进行质量保证监控，并且采用耻辱风格，指出谁似乎在搅乱他们的视频流。

The rankings aren’t exactly a smoking gun, but they do match up pretty consistently with who is in the news for allegedly throttling Netflix video streams (both Verizon and AT&T, for example, have fallen in rank on the average speed table several points).

该排名并非抽烟，但确实与据称节流Netflix视频流的新闻相吻合(例如，Verizon和AT＆T在平均速度表上的排名均下降了几分) 。

RELATED: How to Watch Netflix or Hulu Through a v*n Without Being Blocked

相关： 如何在不被阻止的情况下通过v*n观看Netflix或Hulu

If you want to get into some more serious sleuthing, you can set up a v*n to bypass your ISP’s throttling and retest your network connection. Even though using a v*n service does add some bandwidth overhead, if your ISP is significantly throttling streaming video you’ll still see an increase in video quality as they won’t know what is passing through your v*n connection.

如果您想进行更深入的研究，则可以设置v*n以绕过ISP的限制并重新测试网络连接。 即使使用v*n服务确实会增加一些带宽开销，但是如果您的ISP严重限制了流视频，您仍然会看到视频质量的提高，因为他们不知道通过您的v*n连接传递了什么。

Unfortunately, short of switching ISPs (which is impractical, if not impossible, for many people given the near-monopoly ISPs have on many regions) or passing all your Netflix traffic through a v*n (and quality v*n connections aren’t free) there isn’t a whole lot you can do about ISP-side throttling.

不幸的是，缺少交换ISP(对于许多人来说，这是不切实际的，即使不是不可能的，因为ISP在许多地区都有垄断)或通过v*n传递您所有的Netflix流量(而且高质量的v*n连接也不免费)，关于ISP端限制，您无能为力。

If you’re having video quality issues that you can’t directly attribute to your ISP, however, there are a few things you can do. Aside from the obvious stuff like making sure none of your computers or the other users on your home network are downloading huge files that are tanking your connection, you can set up Quality of Service (QoS) rules on your router to prioritize Netflix traffic over other forms of traffic (like torrent traffic).

但是，如果遇到无法直接归因于ISP的视频质量问题，则可以做一些事情。 除了确保您的计算机或家庭网络上的其他用户均未下载正在破坏连接的巨大文件之类的明显内容外，您还可以在路由器上设置服务质量(QoS)规则，以将Netflix流量优先于其他流量流量形式(例如洪流流量)。

Have a pressing tech question? Shoot us an email at [email protected] and we’ll do our best to answer it.

有紧迫的技术问题吗？ 向我们发送电子邮件至[email protected]，我们将尽力答复。

翻译自: https://www.howtogeek.com/183586/ask-htg-how-can-i-see-if-my-isp-is-throttling-netflix/

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