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This is a modified version of the Internet RFC suitable for machine-translating. Original version is available here: RFC633

Obsoleted by: 638 UNKNOWN
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.

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)

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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