11 Nov
2020
11 Nov
'20
3:55 a.m.
From what I have seen logged into the GW machine
itself, together with tests others have reported it looks like there may be some issue
upstream of UCSD, possibly on the CENIC network rather than within UCSD itself.
It certainly seems to make a big difference depending on where in the world the packets
are coming from (I’m still seeing no packet loss to/from my UK servers).
Hopefully the net ops guys at UCSD can shed more light on this (thanks Dan).
Chris - G1FEF
On 11 Nov 2020, at 05:38, Albert Lawson via 44Net
<44net(a)mailman.ampr.org> wrote:
I’m running 3 MMDVM servers that are connecting to a cBridge in Kennewick, Washington.
As you know, these packets use UDP, and dropped UDP packets are the “kiss of death” for
these type of connections.
I also noticed the pattern of the amount of packets being dropped on Friday, versus how
it seemed to decrease over the weekend and even more so into the first part of this week.
That smells like a DOS attack….
73’s
-Albert
WB7AWL
From: lleachii(a)aol.com [mailto:lleachii@aol.com]
Sent: Tuesday, November 10, 2020 9:14 PM
To: Albert Lawson <wb7awl(a)LAWSONPC.COM>OM>; 44net(a)mailman.ampr.org
Subject: Re: Lost Packets
All,
I should also note that I did not observe the issue constantly since Friday. The loss
subsided over the weekend. I also haven't tested since approximately Monday - until
the emails today.
- KB3VWG
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