网络监视器 - 它可以监视ISP的可用性吗？ [英] Network Monitor - can it monitor ISP availability?

问题描述

保罗，

 

我的ISP最近有几次黄金时段停电，我需要一个工具记录互联网可用性。 网络监视器可以这样做吗？

My ISP has had several prime-time outages recently, and I need a tool that logs internet availability.  Can Network Monitor do this?

 

如果这似乎是一个愚蠢的问题，请道歉。

Apologies if this seems a dumb question.

  ;

谢谢，

 

Gerry

推荐答案

您应该能够查看跟踪并了解网络故障的原因，但我不确定这是监控可用性的最佳方式。 例如，如果网络刚刚完全关闭，您会看到TCP重新传输并且网络上的任何请求
都失败。 如果DNS已关闭，那么您会看到对查询的响应失败，或根本没有回复。 不幸的是，ISP有几种方式可以显示为"out"，因此没有办法找到这种类型的问题。

You should be able to look at a trace and understand why the network is down, but I'm not sure this is the best way to monitor availability.  For instance if the network was just completly down, you'd see TCP retransmits and failures to any requests on the network.  If DNS is down, then you'd see a failed reponses to queries, or no responses at all.  Unfortunately there are a few ways an ISP can appear as "out", so there's no one way to find this type of problem.

我经常做的就是PING对可靠的网站和然后将其记录到文本文件中，这可以记录您的ISP出现问题时的时间戳。 通常可以ping DNS服务器。

What I often do is PING against a reliable website and then record this to a text file, this along with a time stamp can record when your ISP is having problems.  Pinging the DNS server is often possible.

保罗

 

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