[arin-ppml] Encouraging IPv6 Transition (was: Clarify /29 assignment identification requirement)

[William Herrin]

On 5/14/12, Jimmy Hess <mysidia at gmail.com> wrote:
> Telephone number is also not the only option, btw.  The longest IPv4
> prefix ARIN allocates is a /24.
>
> Another option is set aside a /8,  under which
> every  ARIN  /24 IPv4  allocation is automatically  mapped to a unique
> global
> unicast /32 IPv6 allocation;   that is...   under the /8,  the
> assigned /24 IPv4  prefix bits are used to populate  24 bits in the IPv6
> prefix.

Hi Jimmy,

One challenge with this sort of approach draws from NRPM 6.3.8: "In
IPv6 address policy, the goal of aggregation is considered to be the
most important."

Let's stack the phone number approach against the goals:

6.3.2. Uniqueness: pass
6.3.3. Registration: assume they'll file paperwork with ARIN. Otherwise, fail.
6.3.4. Aggregation: very weak. All but the smallest orgs have many
disjoint phone numbers.
6.3.5. Conservation: weak. Any unclaimed phone number is lost addresses.
6.3.6. Fairness: pass
6.3.7. Minimized Overhead: pass. Must still file paperwork with ARIN.
6.3.8. Conflict: fail. Aggregation goal is not prioritized.


Compare to the preemptive assignment approach:

6.3.2. Uniqueness: pass
6.3.3. Registration: pass
6.3.4. Aggregation: pass
6.3.5. Conservation: weak. Some waste of addresses will occur here,
though not especially worse than what occurs due to sparse allocation
in general.
6.3.6. Fairness: potential long-term implications of IPv4 or AS
holders getting IPv6 addresses automatically while anybody new has to
pay.
6.3.7. Minimized Overhead: very strong. Bulk process based on a
relatively simple database pull.
6.3.8. Conflict: pass. Priority on aggregation is maintained.


Compare to "do nothing" and let the existing process play itself out:

6.3.2. Uniqueness: pass
6.3.3. Registration: pass
6.3.4. Aggregation: pass
6.3.5. Conservation: pass
6.3.6. Fairness: pass
6.3.7. Minimized Overhead: weak. Requires manual RIR analysis of
request, payment.
6.3.8. Conflict: pass. Priority on aggregation is maintained.


Regards,
Bill Herrin

-- 
William D. Herrin ................ herrin at dirtside.com  bill at herrin.us
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