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Re: Autonomous System Sanity Protocol

Per Gregers Bilse <pgb@eu.net> Sat, 26 April 1997 16:24 UTC

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From: Per Gregers Bilse <pgb@eu.net>
Date: Sat, 26 Apr 1997 18:19:05 +0200
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Organization: EUnet Communications Services BV
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To: Noel Chiappa <jnc@ginger.lcs.mit.edu>
Subject: Re: Autonomous System Sanity Protocol
Cc: big-internet@munnari.oz.au, ietf@CNRI.Reston.VA.US
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On Apr 26,  5:44, Noel Chiappa <jnc@ginger.lcs.mit.edu> wrote:
>[...]
> It can certainly prevent all unilateral bad information, i.e. based on someone
> incorrectly configuring their routers (or software/hardware bugs).

We have the "technology" to do this today.  It is called "customer
prefix filtering", but it doesn't happen because for one reason
or another a number of operators are unable to implement it.

My point is that the current paradigm (which is for real, whether we
like it or not) has a gaping hole in it: the infamous EGP->IGP->EGP
redistribution chain, where information which is vital for consistent
behaviour can and will be lost.  I'm looking for a way to plug that hole.

-- 
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