North American Network Operators Group
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Re: IPV6 renumbering painless?

  • From: Iljitsch van Beijnum
  • Date: Sun Nov 14 12:11:22 2004 
On 13-nov-04, at 18:11, Hank Nussbacher wrote:


30% usage and we need 32 bit ASNs?
Usage is of course irrelevant, what counts is how many free ones are left. This number is well below 70%.

We would be better off upgrading to 32 bits AS numbers sooner rather than later (unless we're confident we'll never run out of 16 bit ones) because this way there are enough 16 bit AS numbers left. The current 32 bit AS number proposal (that has been around for at least 4 years now) should work very well for routers that aren't upgraded as long as only leaf sites use the 32 bit AS numbers. 32 bit AS numbers for transit ASes are best avoided until everyone has upgraded.