Print

Print


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:
> 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:
>> 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:
>>> 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:
>>>> 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:
>>>>> 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:
>>>>>>
>>>>>> 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)
>>>>>>
>>>>>> http://www.speedtest.net/result/4753582273.png
>>>>>>
>>>>>> --
>>>>>>
>>>>>> Jarlath O'Neil-Dunne
>>>>>>
>>>>>> University of Vermont  |  Spatial Analysis Laboratory
>>>>>>
>>>>>> 802.656.3324
>>>>>>
>>>>>
>>>>
>>>
>>
>