Network Working Group                              Alexander A. McKenzie
RFC # 445                                          BBN-NET
NIC # 14028                                        January 22, 1973


                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 such
rescheduling occurs, we will announce the fact as soon as possible via
two mechanisms - the TIP NEWS and a Journal note (NOT an RFC) to
Technical Liaisons.  Any permanent changes to the schedule will be
announced via the RFC mechanism.

All times show below are Eastern Time.

    First Monday (of each month)
        BBN IMP [0830-1130]
    First Tuesday
        BBN TIP [0830-1130]
        UCSB [1130-1430]
    First Wednesday
        CARNEGIE [0830-1130]
        SRI [1130-1430]
        XEROX [1500-1800]
    First Thursday
        SAAC [0830-1130]
        UTAH [1030-1330]
    Second Monday
        MIT [0830-1130]
        NOAA [1030-1330]
    Second Tuesday
        MITRE [0830-1130]
        USC [1130-1430]
    Second Wednesday
        CCA [0830-1130]
        STANFORD [1130-1430]
        RADC [1430-1730]






McKenzie                                                        [Page 1]

RFC 445         IMP/TIP Preventive Maintenance Schedule     January 1973


    Second Thursday
        BELVOIR [0830-1130]
        UCSD [1130-1430]
        PATRICK [0930-1230]
    Third Monday
        HARVARD [0830-1130]
        UCLA [1000-1300]
    Third Tuesday
        RAND [1130-1430]
        SDC [1530-1830]
    Third Wednesday
        ILLINOIS [0930-1230]
        ARPA [0830-1130]
        AMES IMP [1130-1430]
    Third Thursday
        ETAC [0830-1130]
        FNWC [1130-1430]
    Fourth Monday
        CASE [0830-1130]
        HAWAII [1330-1630]
    Fourth Tuesday
        NBS [0830-1130]
        LBL [1130-1430]
    Fourth Wednesday
        LINCOLN [0830-1130]
        AMES TIP [1130-1430]
    Fourth Thursday
        GWC [0930-1230]
        ISI [1300-1600]
        ABERDEEN [0830-1130]










       [ 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.             9/99 ]








McKenzie                                                        [Page 2]