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

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  • Subject: Re: [conduit] Large CONDUIT latencies to UW-Madison idd.aos.wisc.edu starting the last day or two.
  • Date: Mon, 22 Feb 2016 08:27:57 -0500
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 <address@hidden> 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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