Re: Bizarre packet loss

From	Charles Curley <charlescurley@charlescurley.com>
Newsgroups	linux.debian.user
Subject	Re: Bizarre packet loss
Date	2020-10-23 05:20 +0200
Message-ID	<B2VMt-2lt-3@gated-at.bofh.it> (permalink)
References	<B2UGK-1Dt-5@gated-at.bofh.it>
Organization	occasionally

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On Thu, 22 Oct 2020 22:07:18 -0400
Gregory Seidman <gsslist+debian@anthropohedron.net> wrote:

> If I ping the Debian server from OpenWRT, the wireless device, or the
> wired device I get 25%-30% packet loss *unless* I am pinging an
> external IP from the Debian server at the same time, at which point
> the packet loss goes below 1%. I have no explanation for this.

Bizarre, indeed.

The first thing I try is to cycle power on all three routers
simultaneously. Leave them off for at least 20 seconds. Sometimes they
just lose their marbles.

Failing that, mtr (package mtr-tiny for the command line version) is an
excellent diagnostic tool for this sort of thing. It will tell you
where a problem lies much better than ping will. E.g.:

mtr -r -i 3 -c 10 debian.org

-- 
Does anybody read signatures any more?

https://charlescurley.com
https://charlescurley.com/blog/

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Thread

Bizarre packet loss Gregory Seidman <gsslist+debian@anthropohedron.net> - 2020-10-23 04:10 +0200
  Re: Bizarre packet loss David Christensen <dpchrist@holgerdanske.com> - 2020-10-23 04:50 +0200
  Re: Bizarre packet loss Charles Curley <charlescurley@charlescurley.com> - 2020-10-23 05:20 +0200

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