[178121] in North American Network Operators' Group
Re: Low BW between Mountain View and OR -- why?
daemon@ATHENA.MIT.EDU (Mike Lyon)
Tue Feb 17 01:40:30 2015
X-Original-To: nanog@nanog.org
In-Reply-To: <CAPLq3UOivmC5O6nVcdMj_C_D8Aof5in5P9oav4OS=_+E8_Kk1w@mail.gmail.com>
Date: Mon, 16 Feb 2015 22:40:27 -0800
From: Mike Lyon <mike.lyon@gmail.com>
To: Glen Kent <glen.kent@gmail.com>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
Try a traceroute to the site in Orefon and see where the bottle neck is?
Could also be that the speedtest server in OR is bogged down...
-Mike
On Feb 16, 2015 10:18 PM, "Glen Kent" <glen.kent@gmail.com> wrote:
> Hi,
>
> I have a server in Mountain View and i am doing a speedtest with a server
> in Oregon. I see that the upload/download BW that i am getting is low --
> around 10.0Mbps and 5.0Mbps.
>
> gkent@ubuntu:~/ics$ speedtest-cli --server 4082
> Retrieving speedtest.net configuration...
> Retrieving speedtest.net server list...
> Testing from Comcast Cable (50.250.251.210)...
> Hosted by Eastern Oregon Net, Inc. (La Grande, OR) [913.33 km]: 120.959 ms
> Testing download speed........................................
> Download: 5.08 Mbits/s
> Testing upload speed..................................................
> Upload: 10.89 Mbits/s
>
> When i check my connectivity with a server in NYC, its much better, though
> the server is much further away.
>
> gkent@ubuntu:~/ics$ speedtest-cli --server 2947
> Retrieving speedtest.net configuration...
> Retrieving speedtest.net server list...
> Testing from Comcast Cable (50.250.251.210)...
> Hosted by Atlantic Metro (New York City, NY) [4129.02 km]: 307.568 ms
> Testing download speed........................................
> Download: 38.52 Mbits/s
> Testing upload speed..................................................
> Upload: 10.62 Mbits/s
>
> I am trying to understand why this is so? I would wager that NYC being
> further away would give me a worse throughput than OR, but the speedtest
> tells me otherwise.
>
> The 2nd and more puzzling observation is that while OR is giving a download
> of around 5.08Mbps, it will improve and become much better later in the
> day. There are times when i see it going up as high as 48Mbps.
>
> Sometimes while a transfer is in progress i see that my download suddenly
> goes down from 48Mbps to 2Mbps.
>
> Can somebody here tell me why such a drastic fluctuation is seen?
>
> Thanks, Glen
>
