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

[LDM #VHC-861021]: ldm5 and ldm6 compatability issues?



Jerrold,

> We have recently begun feeding some NWS regional offices' AWIPS systems
> with EOS MODIS imagery and products and also some CRAS model output
> imagery.  This has been a huge success.  The LDM has been a great tool
> for doing this.  Recently some other regional offices that would like
> to receive this data has said that they will be unable to receive it,
> because of incompatibilities receiving data on their LDM 5 clients from
> an LDM 6 server.
> 
> Here is a snippet from an email from the NWS Southern Region Headquarters
> 
> >   Are your servers running LDM 6 or LDM 5?  We've discovered that,
> >   while an LDM 5 server can feed a downstream server running LDM 6; an
> >   upstream LDM 6 cannot feed a downstream LDM 5.  Since most our field
> >   offices are using the LDM 5 software on their LDADS we cannot use
> >   regional servers running LDM 6.
> 
> I was not aware of this issue.  Do you believe this to be an issue?
> Since it is easier for us to make changes on our end than it is for the
> NWS sites, do you have any suggestions?

This is news to me.  LDM 6 was designed to be backward compatible with LDM
5 (although the transfer rates are much lower).  This was tested here and
verified by the incremental deployment of LDM 6.  I would very much like to
talk with someone who knows the details of this issue.  Can you put me in
touch with them?

> We are using the EXP feed to send them the data from pepe.ssec.wisc.edu
> (you will note that they actually feed directly off a machine here
> called awipsds.ssec.wisc.edu.)
> 
> pepe.ssec.wisc.edu is running LDM 6.4.5
> awipsds.ssec.wisc.edu is running LDM 6.4.3
> 
> Thanks Much!
> 
> Jerry
> --
> Jerrold Robaidek                       Email:  address@hidden
> SSEC Data Center                       Phone: (608) 262-6025
> University of Wisconsin                Fax: (608) 263-6738
> Madison, Wisconsin

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: VHC-861021
Department: Support LDM
Priority: Normal
Status: Closed


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.