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- Network Working Group J. McQuillan
- RFC #331 BBN-NET
- NIC #9924 19 April 1972
- Category: B.1
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- IMP System Change Notification
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- We are planning to release IMPSYS 2600 on May 15, 1972, be- tween
- 12 noon and 3 p.m. E.D.T. As discussed at the March 16 seminar held
- at BBN, this release constitutes a major change to the IMP program.
- Because of the magnitude of the change, the system will be released on
- an experimental basis. If problems develop, then the current system,
- IMPSYS 2514, will be reloaded and the cutover for IMPSYS 2600 will be
- rescheduled for some later time.
-
- The actual transfer over to IMPSYS 2600 will require assis- tance
- from site personnel, and we hereby request this assistance. A new
- tape of IMPLOD 2600 will be mailed to all sites shortly, and the staff
- at BBN will request each site in turn on May 15 to load the new IMPLOD
- tape and will detail other procedures to follow thereafter. We prefer
- that each site have someone who is familiar with IMP system operation
- on hand at this time. At some sites, we may request additional
- assistance from the computer operations staffs or programmers in the
- case of any problems. We also advise site personnel to refrain from
- scheduling produc- tion over the Network during the hours of
- switchover, since unforeseen difficulties may arise.
-
- It is anticipated that the Hosts will not see any first- order
- effects from the switchover. Leader formats and message types are not
- changed. On the other hand, the statistics package has been
- extensively modified, and the NMC has been notified of these changes.
- The Very Distant Host option will also be included in this new system
- release, and it is expected to be activated for use about June 1. The
- detailed changes to the IMP system will be described in a forthcoming
- revision to BBN Report 1822.
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- Finally, your patience is requested if the new system causes
- unforeseen problems.
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- JMcQ/jm
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- [ This RFC was put into machine readable form for entry ]
- [ into the online RFC archives by BBN Corp. under the ]
- [ direction of Alex McKenzie. 12/96 ]
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