This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
=============================================================================== Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research address@hidden WWW: http://www.unidata.ucar.edu/ =============================================================================== ---------- Forwarded message ---------- Date: Wed, 27 Sep 2000 17:31:58 -0400 From: address@hidden To: Kevin Tyle <address@hidden> Subject: Re: How to ingest data from an ethernet port? Kevin, LDM can read from a port, at least TCP anyway. I am feeding LDM from a noaaport system using a port. Specify pqing -P 5001 or whatever port you are reading in on. Here is my pqing line: exec "pqing -5 -f WMO -v -l /weather/ldm/logs/pqing.log -P 5004 162.113.108.72" The -5 prevents the MD5 checksum from using the sequence number, which is good because sequence numbers are no longer used with NOAAPORT transmissions. Make sure you are using the latest ldm (5.1.2), since the earlier versions would segmentation fault when specified with the -P command line parameter. Good luck! Mike Kevin Tyle <address@hidden> To: address@hidden Sent by: cc: owner-ldm-users@unidat bcc: a.ucar.edu Subject: How to ingest data from an ethernet port? 09/27/2000 04:43 PM As the sun sets on Alden, we have signed on with Gyncorp (formerly GTE) as our data provider. Their receiver sends data through an Ethernet port which can then be read on the receiving computer. I haven't looked too closely at the sample program they provide to read in the data, but it appears to be UDP packets on port 9042. Question is, how can I ingest this data into the LDM queue? pqing can read from a file or a tty, but I don't see any way how it can read from an ethernet-based feed. Can anyone out there help me out on this? Thanks! --Kevin Tyle <address@hidden> MESO, Inc. Troy, NY