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Unfortunately we have not been able to pin down exactly when the slowness started.  That will change going forward due to the fact that we have a new monitoring system in place.

Thanks for the test results.  Confirms that indeed the asymmetry is not a problem anymore.

-dan


Dan Brisson
Network Engineer
University of Vermont
(Ph) 802.656.8111
[log in to unmask]
On 10/19/2015 2:13 PM, Ernie Buford wrote:
[log in to unmask]" type="cite"> When did the border firewall problem begin? Someone working here mid-day Saturday was dealing with a major slow-down.

Current test results....

perfsonar-wat.uvm.edu:7123: 764 down, 613 up
Speedtest.net (BT): 313 down, 336 up
DSLreports: 670 down, 727 up
Comcast (Boston; IPv6): 489 down, 829 up
Speakeasy (NY): 699 down, 355 up
Verizon: 557 down, 694 up
testmy.net: 42 down, 20 up

On 10/19/2015 1:45 PM, Dan Brisson wrote:
[log in to unmask]" type="cite"> As it turns out, we have discovered a problem with our Border Firewalls.  After closer inspection, we failed over to the redundant box and the asymmetry has cleared up, at least according to my testing. 

Ernie, if you could test again and let me know.

Thanks for alerting us to this!

-dan


Dan Brisson
Network Engineer
University of Vermont
(Ph) 802.656.8111
[log in to unmask]
On 10/19/2015 12:27 PM, Dan Brisson wrote:
[log in to unmask]" type="cite"> Thanks Ernie, that is very informative!

I'm digging in now to make sure we are not the cause of the asymmetry.

-dan


Dan Brisson
Network Engineer
University of Vermont
(Ph) 802.656.8111
[log in to unmask]
On 10/19/2015 11:43 AM, Ernie Buford wrote:
[log in to unmask]" type="cite"> Thanks for sharing that, Dan. We have been looking for a reliable test to run in attempts to rule out network issues when we experience performance problems over here in Aiken. Speedtest.net usually selects Burlington Telecom as test server based on ping results. I get 488 Mbps down and 31 up right now.

Your local, experimental server reports 600+ Mbps up and down this morning. A battery of other tests using off-campus sources shows rather poor upload speeds...

DSLreports: 683 down, 64 up
Comcast: 429 down, 5 up
Speakeasy: 691 down, 8 up
Verizon: 537 down, 10 up
testmy.net: 35 down, 1 up

Interesting... but informative?

Ernie

On 10/19/2015 8:52 AM, Dan Brisson wrote:
[log in to unmask]" type="cite"> Speedtest.net is showing to be very erratic in my testing as well.  Usually it's decent b/c Burlington Telecom hosts a server and we are directly connected to them at 1Gb/s.  But like Nick, I'm getting very asymmetric results to the point where I wonder if BT is throttling upload speeds.

There is an internal server that is worth trying.  It is experimental at this stage, but is giving me much more consistent results than BT's server:

http://perfsonar-wat.uvm.edu:7123/

Jarlath, let me know if you're still seeing slow speeds today.  None of our logging systems are showing anything interesting at this time but I can certainly look into it more.

Thanks,
-dan


Dan Brisson
Network Engineer
University of Vermont
(Ph) 802.656.8111
[log in to unmask]
On 10/19/2015 8:04 AM, Nick Gingrow wrote:
[log in to unmask]" type="cite">

Interesting, I just ran it and got 322Mbps down and only 25 Mbps up.

 

 

Nick Gingrow

UVM School of Business

IT Professional

802.656.0714

 

From: Technology Discussion at UVM [mailto:[log in to unmask]] On Behalf Of Jarlath ONeil-Dunne
Sent: Saturday, October 17, 2015 12:28
To: [log in to unmask]
Subject: Slow network speeds today

 

Over in Aiken we are seeing very slow (less than 25 mb/s) upload speeds today. Anyone else noticing this?

(see attached)

[log in to unmask]" border="0" height="102" width="150">

--

Jarlath O'Neil-Dunne

University of Vermont  |  Spatial Analysis Laboratory

802.656.3324