North American Network Operators Group
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Re: filtering long prefixes

  • From: bmanning
  • Date: Sun Sep 24 14:46:56 1995
  • Posted-date: Sun, 24 Sep 1995 11:43:32 -0700 (PDT)
> 
> Are you suggesting some sort of exchange point or NAP specifically to 
> break out longer prefixes from shorter prefixes that cannot be 
> topologically aggregated? Would something like this enable people
> to maintain provider independent addressing (i.e. no renumbering) by 
> merely paying a fee to an exchange point that is well connected and 
> settling for less optimal routing?
> 
> If this will work in practice, it seems like the perfect tradeoff. On the 
> one hand you must renumber when changing providers but you get optimal 
> routing. On the other hand, you avoid renumbering but you pay a few bucks 
> and have less than optimal routing.
> 
> Am I missing anything here?
> 

	Perhaps a couple of things:
		- Common transit agreements for all particpants
		- Single point of attachment, ie you must renumber
		  if you home to another provider or exchange.

-- 
--bill