RFC 406 (rfc406) - Page 2 of 2

Scheduled IMP Software Releases

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IMP goes down, a second IMP - Going - Down message will be
sent to the Hosts informing them that the IMP is going down
immediately.  The format of the IMP - Going - Down message
is as follows:

bits 1 - 4  -  all zero

bits 5 - 8  -  0010

bits 9 - 16 -  all zero

bits 17 - 32 -  coded as follows:


          All bits zero - going down in 30 seconds



          Bits 17, 18 = 01 - scheduled hardware PM

          Bits 17, 18 = 10 - scheduled software reload

          Bits 17, 18 = 11 - emergency reload on restart



          Bits 19 - 22 - how soon the IMP is going down,
                         in 5 minute units.



          Bits 23 - 32 - how long the IMP will be down, in
                         5 minute units.





    [ This RFC was put into machine readable form for entry ]
    [ into the online RFC archives by BBN Corp. under the   ]
    [ direction of Alex McKenzie.                      1/97 ]

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