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Re: LDM bandwidth issues

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  • Subject: Re: LDM bandwidth issues
  • Date: Fri, 5 Mar 1999 14:15:32 -0700 (MST)
On Fri, 5 Mar 1999 address@hidden wrote:

> Hi Robb,
> 
> I wasn't sure if this is a question I should post to
> the users group - but I thought I would check with you
> first.
> 
> We're talking to a collaborator over-seas who would
> like to get an LDM data feed from us - or rather NCAR.
> One question is what kind of bandwidth a typical feed
> "requires" in order to be effective.  I'm sure this
> information is someplace in the docs but I didn't see
> it.  Could you give me an idea about the 
> a. how much data is getting pushed around to a typical
>    downstream client?
> and
> b. what sort of bandwidth they should have to receive it?

Dan,

It really depends on what feeds sites are receiving. Here's a chart on the
feed rates: http://www.unidata.ucar.edu/projects/idd/statsummary.html

> and
> b. what sort of bandwidth they should have to receive it?
>
Depending on the feeds above, any where from .3 of a T1 to over a T1 if
they plan on getting the 5 gigabytes from NCEP.  I would add up the feeds
that you plan on sending, multple by 120% and ask you system admin what
bandwidth would be needed, especially with the overseas situation.

Robb...          


> 
> TIA!
> Dan
> -- 
> Dan Hansen
> address@hidden
> NCAR - National Center for Atmospheric Research
> 3450 Mitchell Lane                              
> P.O. Box 3000
> Boulder, CO, USA
> PHONE (303) 497-8945
> FAX (303) 497-8171
> 

===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
===============================================================================