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Hi, The toplevel IDD relay node we maintain at the NSF offices in Vienna, VA, idd.cise-nsf.gov, will be unavailable due to facilities maintenance during the period Dec 11th at 9PM EST until Dec 12th at 12:00PM EST. Sites feeding from idd.cise-nsf.gov should prepare for this outage by redundantly feeding from your designated failover. If you do not know who your failover is, please contact Unidata IDD Support <address@hidden> Cheers, Tom --