[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

20050310:IDD top level relay atm.geo.nsf.gov PSU

Hi Art,

Yes, the laser link for the I2 connection is indeed a weak link.

At least it only goes out during times of inclement weather :)

Please try feeding from:

as a secondary PRIMARY feed with:


remaining as your "first" (first request in your ldmd.conf)  PRIMARY,

this should keep you alive in case of any future atm outages..

Yes, we are looking for other top level relay nodes to supplement
atm.geo.nsf.gov and are hoping to secure a ground line for I2 connections
to atm as well.

How do you and PSU feel about being a top level relay node?

I am sure Tom will chime in, he is skiing today and tomorrow..lucky man!


Jeff Weber                                    address@hidden        :
Unidata Program Center                        PH:303-497-8676        :
University Corp for Atmospheric Research      3300 Mitchell Ln       :
http://www.unidata.ucar.edu/staff/jweber      Boulder,Co 80307-3000  :

On Thu, 10 Mar 2005, Unidata Support wrote:

> ------- Forwarded Message
> >To: Unidata Support <address@hidden>
> >From: "Arthur A. Person" <address@hidden>
> >Subject: Re: 20050308: IDD top level relay atm.geo.nsf.gov unavailable
> >Organization: UCAR/Unidata
> >Keywords: 200503092003.j29K3kv2017860
> Tom,
> On Tue, 8 Mar 2005, Unidata Support wrote:
> >> From: Unidata User Support <address@hidden>
> >> Organization: Unidata Program Center/UCAR
> >> Keywords: IDD atm.geo.nsf.gov
> >
> > IDD nodes feeding from atm.geo.nsf.gov:
> >
> > The Internet2 connectivity provided by a laser link at the NSF/ATM
> > offices in Northern Virginia is not working due to heavy precipitation
> > in the area.  Networking at NSF/ATM is configured to only allow LDM
> > feed requests through its Internet2 connection (since their commodity
> > Internet connection would be consumed by IDD traffic alone), so sites
> > using atm.geo.nsf.gov as their primary feed site should failover to
> > their backup(s) as soon as possible.  The toplevel IDD relay at
> > Unidata, idd.unidata.ucar.edu, may be used as a failover site for all
> > feeds if your other failover is not availables or is not receiving
> > data.
> >
> > atm.geo.nsf.gov's Internet2 connectivity should return automatically as
> > when the precipition in Northern Virginia abates enough for the laser
> > link to begin functioning again.
> This is just one more potentially recurrent problem making it hard to rely
> on atm for reliable data distribution.  Is there still a move going on to
> switch to a different east coast site for a data feed?  Last month you
> mentioned PSU as a possibility, although I have not heard anything further
> since then about us or any other potential site.  Would it be okay for us
> to switch to idd.unidata.ucar.edu (or another source) until a more
> reliable relay is found?
>                                    Thanks.
>                                      Art.
> Arthur A. Person
> Research Assistant, System Administrator
> Penn State Department of Meteorology
> email:  address@hidden, phone:  814-863-1563
> --
> NOTE: All email exchanges with Unidata User Support are recorded in the
> Unidata inquiry tracking system and then made publicly available
> through the web.  If you do not want to have your interactions made
> available in this way, you must let us know in each email you send to us.
> ------- End of Forwarded Message