From: "Mark Tinka" <mark.tinka@seacom.com>
To: "Matt Hoppes" <mattlists@rivervalleyinternet.net>
Cc: "NANOG" <nanog@nanog.org>
Sent: Thursday, October 29, 2020 7:31:59 AM
Subject: Re: Apple Catalina Appears to Introduce Massive Jitter



On 10/29/20 14:27, Matt Hoppes wrote:

> Is it actually jitter or is it potentially the wireless network card
> going into sleep mode? I have seen that type of behavior on Apple
> products when the cards go into low power mode although I can’t say I
> have noticed that on my laptop.

Not, not sleep mode, because I am actively using the device to move data
to/from the Internet.

I was actually struggling to upload some files to Youtube last weekend,
and had to use another computer to do it as I couldn't figure out what
was going on. That it is how bad the jitter is.

It seems to be a much bigger problem for the upload direction than the
download, but it, inevitably creates a symmetrical performance problem.

Mark.