Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!UCBCMSA.BITNET!CLIFF
From: CLIFF@UCBCMSA.BITNET (Cliff Frost {415} 642-5360)
Newsgroups: comp.sys.proteon
Subject: Re: Problems with P4200s not updating routing tables.
Message-ID: <8906052121.AA00986@devvax.TN.CORNELL.EDU>
Date: 5 Jun 89 21:21:00 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 14

Sigh.  It turns out I was commenting on RIP from an out-of-date draft
of the spec.  My apologies to Charles Hedrick (and everyone else...)

I believe that my analysis of what is likely happening is still
reasonable, since Proteon's RIP does split-horizon-with-poisoned-reverse
in the manner I described.  I was wrong to say that the RIP spec
*requires* this behaviour.

      Cliff

ps  I remember that Van Jacobson's original observations had to do
    with DEC stuff.  For a long time analogous behaviour by some RIP
    implementations has been observed by many people.  As I said before,
    it is not inherent to RIP but merely an artifact of implementations.