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Re: NIDS data.... revisited

Peter, et al

This is the note I sent to the IDD:

Hiya,

For the present time I created/implemented a filter on thelma to eliminate
the NIDS products from the IDD. My concern was network congestion and the
increased burden on many  LDM sites.  Also, if the products are going to
be encrypted, then they will not be usefull until an encryption decoder
is developed.  I don't know if that will be possible.  If a decoders can
be developed, a distribution scheme will be implemented for the NIDS. At
this time the NOAAport NIDS information is hard to find.

Should the iita machine also implement the filter?

filter:  WMO "(^[A-RT-Z])|(^S[^D]..[^9][^7])"

Robb...



On Fri, 23 Apr 1999, Dan Vietor wrote:

> If you remember about a month ago, I mentioned that NIDS data was
> starting to be broadcast on NOAAPORT under the WMO header SDUS97.
> Slowly but surely, NWS is adding more and more sites to the NWSTG
> channel on NOAAPORT.  They are up to 9 sites with products coming in
> every 6-10 minutes.  The goal is to have 100-140 sites online by the end
> of the year with 6 products sent every 6-10 minutes (estimated
> 150MB/hour, 300Kbit/sec).  This is a TON of data that could swamp local
> IDD connections??  I noticed the Meso-Eta is already pushing the
> network... at least at Purdue.
> 
> With the fix on the LDM yesterday, these NIDS products are now making it
> to the end users sites.  With NWS planning on encrypting this soon, the
> data will be unusable to the universities and thus probably shouldn't
> even go out over IDD.  I'm just expressing some concern that this could
> be a problem in the future.
> 
> ________________________________________________________
> Daniel Vietor               Mail: address@hidden
> Unisys Corp                 Title: Engineer/Meteorologist
> 221 Gale Lane               Phone: 610-444-2407
> Kennett Square PA 19348     Fax: 610-444-2420
> 

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