North American Network Operators Group
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Re: Policy Statement on Address Space Allocations

  • From: Iljitsch van Beijnum
  • Date: Tue Jan 30 06:38:51 1996 
> At 6:09 1/29/96, Alex.Bligh wrote:

> > Currently I have 2 choices as
> >far as I can make out, give them a bit of my /19, break up my
> >nice aggregate and ensure loads of extra announcements (and that
> >probably none of them get routed by anyone applying prefix based
> >filtering), or give them a new /19 all of their own (you've

Suppose you have a customer that needs a /22 and they want to go 
multi-homed. Suppose you give them that /22 out of your /19 or /16 you 
got from the RIPE NCC. So they announce their /22 to you and to their 
other provider. But you keep announcing your /19 or /16. So if anybody 
were to filter the /22 announcement, your customer only suffers partial 
loss of connectivity, since you are still announcing an aggregate of 
their announcemnt (your original /19 or /16).

Problem fixed. Anything else?  ;-)