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Date:      Fri, 24 Jul 2020 18:49:56 +0200
From:      Polytropon <freebsd@edvax.de>
To:        Lars Liedtke <liedtke@punkt.de>
Cc:        freeBSD Mailing List <freebsd-questions@freebsd.org>
Subject:   Re: Slowing network speed
Message-ID:  <20200724184956.b7aea4aa.freebsd@edvax.de>
In-Reply-To: <7b80ba1a-3751-d72c-a04a-86e48fc3bc81@punkt.de>
References:  <20200724123844.GA24036@doctor.nl2k.ab.ca> <e3f8682a-96e0-2ea6-6d9a-4a81b52a310d@punkt.de> <CADqw_g%2BaiEGmoC3AKi2zaiYxQHB0%2B6x_aES_7A_gPbwkmUMcZA@mail.gmail.com> <7b80ba1a-3751-d72c-a04a-86e48fc3bc81@punkt.de>

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On Fri, 24 Jul 2020 15:58:10 +0200, Lars Liedtke wrote:
> ping shows you.
> Can help to have tcpdump running in a second shell

It also sometimes helps to have a "reference object", i. e.,
some device where you _know_ how all the parameters should be.
You can then compare them side by side, using tools like ping,
monitoring packet flow, content, and times with tcpdump or
visually with Wireshark.

Slow speed can be the result of many different things that
aren't set up right, or that don't match each other... maybe
something damages network packets, maybe something drops
connections all the time and requires re-negotiation, maybe
some hardware-specific aspect is set to a wrong value... there
are many possibilities that can be experienced as "slow speed".

Without further investigation, it's impossible to know. :-)



-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...



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