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HDS Problems (fwd)

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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.

  • Subject: HDS Problems (fwd)
  • Date: Tue, 1 Jun 1999 16:25:08 -0600 (MDT)

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

---------- Forwarded message ----------
Date: Thu, 27 May 1999 23:17:10 -0400
From: "James P. Koermer" <address@hidden>
To: address@hidden
Subject: HDS Problems

Has anyone else had HDS data problems today? I haven't received any HDS
data (no model grids, no RCM data) since just prior to 27/1400Z? All my
other feeds seem normal. I've stopped and restarted my LDM, several
times during the outage, but nothing changes.

Any problems or changes at UIUC? The link to their LDM logs on the
Unidata IDD Site Logs page apparently no longer works. Traceroutes and
latencies have been looking good.

I was going to failover to UMICH, but lately I rarely get a clean
traceroute to there, e.g.
traceroute to blueskies.sprl.umich.edu (141.213.23.92), 30 hops max, 40
byte packets
 1  fddilame2.plymouth.edu (158.136.73.1)  1 ms  1 ms  1 ms
 2  ehy621.plymouth.edu (158.136.1.11)  3 ms  2 ms  2 ms
 3  isp-atm.plymouth.edu (158.136.12.1)  10 ms  8 ms  8 ms
 4  206.57.76.1 (206.57.76.1)  10 ms  8 ms  7 ms
 5  s4-0.cr1.BOS.globalcenter.net (209.143.208.21)  19 ms  9 ms  9 ms
 6  hssi0-0.br1.LGA.globalcenter.net (206.41.16.53)  17 ms  15 ms  16 ms
 7  pos3-0-155M.cr1.LGA2.globalcenter.net (206.41.19.85)  17 ms  15 ms 
16 ms
 8  pos8-0-622M.wr1.CLE1.globalcenter.net (206.132.111.209)  29 ms  26
ms  26 ms
 9  pos4-2-155M.cr2.CHI1.globalcenter.net (206.132.118.246)  47 ms  47
ms  43 ms
10  pos1-0-155M.br1.CHI1.globalcenter.net (206.132.118.98)  48 ms  47
ms  44 ms
11  s4-0-1-45M.cr1.ORD.globalcenter.net (206.132.118.114)  49 ms  50 ms 
46 ms
12  atm2-chicago.mich.net (198.32.130.74)  57 ms  57 ms  62 ms
13  hssi1-0-0.michnet1.mich.net (198.108.22.101)  64 ms  64 ms  60 ms
14  f-umbin.ccb-cis7000.engin.umich.edu (198.108.3.8)  64 ms  63 ms  60
ms
15  * 141.212.2.7 (141.212.2.7)  80 ms  70 ms
16  blueskies.sprl.umich.edu (141.213.23.92)  69 ms *  64 ms

The problem is always on hops 15 and 16.

                                Jim
-- 
James P. Koermer                     E-Mail: address@hidden
Professor of Meteorology             Phone: (603)535-2325
Natural Science Department           Fax: (603)535-2723
Plymouth State College               WWW: http://vortex.plymouth.edu/
Plymouth, New Hampshire 03264