[arin-ppml] Utilization policy is not aggregate

Jimmy Hess mysidia at gmail.com
Thu Nov 22 03:03:57 EST 2012

On 11/21/12, Seth Mattinen <sethm at rollernet.us> wrote:

It seems like just a weakness in the policy's concept of what utilization is.
In the case of BGP anycasting, you have a /24,  part of which becomes
for purposes other than anycasting, for technical reasons;    as long
as you don't allocate multiple /24s in this way,  and still  have very
few anycasted  services,  then a complete model of utilization  should
count it utilized.

The policy could be revised to state  something to the effect that,
when an ISP or end user is allocated a minimum of 1000 or more
addresses, up to a maximum of a single /24 equivalent per  AS  number;
no more than 1 /24 per  2048 IP addresses allocated,  with an adequate
showing of technical justification and contracts requiring this,  can
be counted as  utilized with a justification of  "Service provisioning
agreement requiring unique, separate routing  (Anycast BGP)",  and
therefore unused addresses from the range  are to be considered
utilized space,    for the purpose of justifying additional
allocations for  non-Anycast use.

> What about taking a /24 out to use for something like BGP anycasting?
> The whole thing is immediately "used" for that purpose, and the last
> time I asked, policy doesn't account for that.

> ~Seth

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