[140370] in North American Network Operators' Group
Re: VPN tunnels between US and China dropping/slow
daemon@ATHENA.MIT.EDU (Joel Jaeggli)
Tue May 10 13:18:00 2011
Date: Tue, 10 May 2011 10:17:32 -0700
From: Joel Jaeggli <joelja@bogus.com>
To: Adam Rothschild <asr@latency.net>
In-Reply-To: <BANLkTi=zTySGA9QAhrpQFzdHM15im77WEA@mail.gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 5/10/11 10:10 AM, Adam Rothschild wrote:
> Realize also that China Telecom is congested both internally and on
> certain peering interfaces.
>
> While DPI is a likely culprit, be sure to not overlook a good
> old-fashioned inability to manage capacity, combined with certain
> hashing algorithms...
if you're measuring the end-to-end path you'll likely see evidenced of
the latency climbing on a near daily cycle.
my median rtt from the us east coast is 268ms sometimes it's north of
370 with essentially the same loss properties.
> -a
>
