[173334] in North American Network Operators' Group
Re: Connectivity issue between Verizon and Amazon EC2
daemon@ATHENA.MIT.EDU (Ray Van Dolson)
Tue Jul 22 10:46:47 2014
X-Original-To: nanog@nanog.org
Date: Tue, 22 Jul 2014 07:46:34 -0700
From: Ray Van Dolson <rvandolson@esri.com>
To: Roland Dobbins <rdobbins@arbor.net>
In-Reply-To: <20140722034736.GA4652@esri.com>
Cc: "nanog@nanog.org list" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
On Mon, Jul 21, 2014 at 08:47:36PM -0700, Ray Van Dolson wrote:
> On Tue, Jul 22, 2014 at 10:41:25AM +0700, Roland Dobbins wrote:
> >
> > On Jul 22, 2014, at 10:31 AM, Ray Van Dolson <rvandolson@esri.com> wrote:
> >
> > > We're seeing poor performance (very slow download speeds -- <
> > > 100KB/sec) to certain EC2 instances via our Verizon hosted
> > > circuits.
> >
> > Have you tried dorking around with your MTU to see if that makes a
> > difference?
>
> Not in a position to easily test that tonight (PDT) but will do so
> tomorrow.
>
Monkeyed with the MTU -- 500, 100, 1200 -- no real observed difference
and still seeing lots of retransmits.
Ray
