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Network Working Group A. McKenzie Request for Comments: 633 BBN-NET NIC: 30240 March 18, 1974

                IMP/TIP Preventive Maintenance Schedule
 This note presents the current IMP/TIP Preventive Maintenance
 schedule.  Preventive Maintenance is scheduled on a monthly basis and
 a given machine is normally scheduled at the same time each month;
 wherever possible the time is chosen to coincide with the PM time for
 the Host(s) at the site.
 It is sometimes necessary to reschedule PM's because of network
 connectivity considerations or for other reasons.  Whenever this is
 necessary we will follow the usual procedure for scheduling down time
 with our "primary contact" at the site.  Permanent changes to the
 schedule will he announced via the RFC mechanism.
 PM's normally do not require the IMP/TIP to be taken down.  However,
 machines must be taken down in some cases, so no one should rely on
 the machine remaining available through the PM period.
 All times shown below are Eastern Time.
  First Monday (of each month)
      BBN IMP  [0830-1130]
      NCC TIP  [1130-1430]
      WRIGHT-PATTERSON  [1300-1700]
  First Tuesday
      BBN TIP  [0830-1130]
      UCSB  [1130-1430]

McKenzie [Page 1] RFC 633 IMP/TIP Preventive Maintenance Schedule March 1974

  First Wednesday
      CARNEGIE  [0830-1130]
      SRI [1130-1430]
  First Thursday
      SDAC  [0830-1130]
      UTAH  [1030-1330]
      NORSAR  [0830-1130]
      LONDON  [0830-1130]
  Second Monday
      MIT-MAC  [0830-1130]
      MIT-IPC  [1200-1500]
      DOCB  [1030-1330]
  Second Tuesday
      MITRE  [0830-1130]
      USC [1130-1430]
  Second Wednesday
      CCA  [0830-1130]
      STANFORD  [1130-1430]
      XEROX  [1500-1800]
      RADC [1430-1730]
  Second Thursday
      BELVOIR  [0830-1130]
      UCSD  [1130-1430]
      RML  [0930-1230]

McKenzie [Page 2] RFC 633 IMP/TIP Preventive Maintenance Schedule March 1974

  Second Friday
      TYMSHARE  [1300-1600]
  Third Monday
      HARVARD  [0830-1130]
      UCLA  [1000-1300]
      KIRTLAND  [1600-1900]
  Third Tuesday
      RAND  [1130-1430]
      SDC  [1530-1830]
  Third Wednesday
      ILLINOIS [0930-1230]
      ARPA  [1800-2100]
      AMES IMP  [1130-1430]
      AMES TIP  [0800-1130]
      HAWAII  [1130-1430]
      MOFFETT  [1500-1600]
  Third Thursday
      ETAC  [0830-1130]
      FNWC  [1130-1430]
  Fourth Monday
      CASE  [0830-1130]
  Fourth Tuesday
      NBS  [0830-1130]
      LBL  [1130-1430]

McKenzie [Page 3] RFC 633 IMP/TIP Preventive Maintenance Schedule March 1974

  Fourth Wednesday
      LINCOLN  [0830-1130]
      RUTGERS  [1000-1400]
  Fourth Thursday
      GWC  [0930-1230]
      ISI  [1300-1600]
      ABERDEEN  [0830-1130]
  Fourth Friday
      LLL  [1330-1730]
     [ This RFC was put into machine readable form for entry ]
     [ into the online RFC archives by Alex McKenzie with    ]
     [ support from GTE, formerly BBN Corp.           2/2000 ]

McKenzie [Page 4]

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