[arin-ppml] Policy Proposal: Extend 16 bit ASN Assignments

Leo Vegoda leo.vegoda at icann.org
Sat May 9 12:34:00 EDT 2009

On 08/05/2009 4:42, "Ted Mittelstaedt" <tedm at ipinc.net> wrote:


> At this point all the major router vendors have corrected their
> ASN handling code so that 4 byte AS numbers are not a problem
> unless you want to use one yourself.

At last week's RIPE meeting, Daniel Karrenberg presented a statistical
breakdown of the reasons given when 32-bit ASNs are returned to the RIPE
NCC. It was interesting to see that in over 40% of cases the reason(s) given
related to the ability of a 3rd party network to cope with big AS Numbers.
See slide 4:


Using the number yourself seems not to be as simple as we had hoped.


Leo Vegoda

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