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This is a modified version of the Internet RFC suitable for machine-translating. Original version is available here: RFC638

UNKNOWN
Network Working Group                                   Alex A. McKenzie
Request for Comments: 638                                        BBN-NET
NIC: 30538                                                April 25, 1974
IMP/TIP Preventive Maintenance Schedule

This RFC corrects numerous inaccuracies in RFC #633. Rather than trying to list all the changes, I urge all Liaisons and other interested parties to look carefully at the times now listed for the sites they are interested in.

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.

PLEASE REMEMBER THAT TUESDAY MORNINGS FROM 7am TO 9am ARE RESERVED FOR NETWORK SOFTWARE MAINTENANCE.


All times shown below are Eastern Time.

First Monday (of each month)

5 BBN IMP [0830-1130]

40 NCC TIP [1130-1430]

47 WRIGHT-PATTERSON [1300-1700]

First Tuesday

30 BBN TIP [0830-1130]

3 UCSB [1130-1430]
McKenzie                                                        [Page 1]

RFC 638         IMP/TIP Preventive Maintenance Schedule       April 1974
First Wednesday

14 CARNEGIE [0830-1130]

2 SRI [1200-1500]

First Thursday

26 SDAC [0830-1130]

4 UTAH [1030-1330]

41 NORSAR [0830-1130]

42 LONDON [0830-1130]

Second Monday

6 MIT-MAC [0830-1130]

44 MIT-IPC [1200-1500]

25 DOCB [1030-1330]

Second Tuesday

17 MITRE [0830-1130]

23 USC [1130-1430]

Second Wednesday

31 CCA [0830-1130]

11 STANFORD [1200-1500]

32 XEROX [1400-1700]

18 RADC [0900-1200]

Second Thursday

27 BELVOIR [0830-1130]

35 UCSD [1130-1430]

37 RML [0930-1230]
McKenzie                                                        [Page 2]

RFC 638         IMP/TIP Preventive Maintenance Schedule       April 1974
Second Friday

43 TYMSHARE [1200-1500]

Third Monday

9 HARVARD [0830-1130]

1 UCLA [1000-1300]

48 KIRTLAND [1600-1900]

Third Tuesday

7 RAND [1130-1430]

8 SDC [1530-1830]

Third Wednesday

12 ILLINOIS [0930-1230]

28 ARPA [1700-2000]

15 AMES IMP [1200-1500]

16 AMES TIP [1300-1600]

36 HAWAII [1430-1730]

45 MOFFETT [1400-1700]

Third Thursday

20 ETAC [0830-1130]

33 FNWC [1300-1600]

Third Friday

21 LLL [1230-1530]

Fourth Monday

13 CASE [0830-1130]
McKenzie                                                        [Page 3]

RFC 638         IMP/TIP Preventive Maintenance Schedule       April 1974
Fourth Tuesday

19 NBS [0830-1130]

Fourth Wednesday

10 LINCOLN [0830-1130]

46 RUTGERS [1000-1400]

Fourth Thursday

24 GWC [1500-1800]

22 ISI [1300-1600]

29 ABERDEEN [1300-1600]











[ 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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