Re: [conduit] Large CONDUIT latencies to UW-Madison idd.aos.wisc.edu starting the last day or two.

  • To: Carissa Klemmer - NOAA Federal <carissa.l.klemmer@xxxxxxxx>
  • Subject: Re: [conduit] Large CONDUIT latencies to UW-Madison idd.aos.wisc.edu starting the last day or two.
  • From: Karen Cooper - NOAA Affiliate <karen.cooper@xxxxxxxx>
  • Date: Mon, 22 Feb 2016 07:46:02 -0600
Hi Carissa,

This may be completely unrelated, but I had a similar problem with
latencies that started on Feb. 19.

It was between the OU IRADS servers and NSSL, so I don't know if it's in
any way related, but I thought I would mention it.



On Mon, Feb 22, 2016 at 7:27 AM, Carissa Klemmer - NOAA Federal <
carissa.l.klemmer@xxxxxxxx> wrote:

> All,
>
> Something bigger than just CONDUIT users occurred on the 19th. We had
> numerous users of other servers complain of similar drops in transfer
> rates. A few of them were also able to move downloads to a new location
> where speeds were normal. We believe that this issue was outside of NCEP
> due to that reasoning. Having said that though, is anyone still seeing
> abnormal rates?
>
> Carissa Klemmer
> NCEP Central Operations
> Dataflow Team Lead
> 301-683-3835
>
> On Fri, Feb 19, 2016 at 5:01 PM, Patrick L. Francis <wxprofessor@xxxxxxxxx
> > wrote:
>
>>
>>
>> In the hopes of keeping the ball rolling on this issue before I quit for
>> the day, I have another screen cap to share of MTR running from one of my
>> colo boxes to ftp.ncep
>>
>>
>>
>> http://drmalachi.org/files/ncep/he-ncep.2015.02.19.png
>>
>>
>>
>> notice that latencies running along the hurricane electric backbone are
>> fine, then quickly pick up an additional 20ms from the hop, but packet loss
>> does not begin until the handoff between gigapop and ncep itself, which
>> also displays the highest standard deviations along the route..
>>
>>
>>
>> hope everyone has a good weekend J
>>
>>
>>
>> cheers,
>>
>>
>>
>> --patrick
>>
>>
>>
>>
>>
>> -------------------------------------------------------
>>
>> Patrick L. Francis
>>
>> Vice President of Research & Development
>>
>>
>>
>> Aeris Weather
>>
>>
>>
>> http://aerisweather.com/
>>
>> http://modelweather.com/
>>
>>
>>
>> http://facebook.com/wxprofessor/
>>
>>
>>
>> --------------------------------------------------------
>>
>
>
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