rfnm's and 4.2bsd

[MRC at SU-SCORE.ARPA]

From:  Mark Crispin <MRC at SU-SCORE.ARPA>

It is a horrible idea to test for bad leader.  Interface reset should
always be used as the condition to "reset everything".  My old NCP code
for WAITS ignored all messages from the IMP after IMP Ready cycled down
until it got an Interface Reset.  If it failed to get the Interface Reset
within 10 (or was it 30?) seconds after IMP Ready/Host Ready were up, it
dropped Host Ready, held it down a few seconds, then tried again.  In
general, this worked quite well.
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