Re: Agendas for IPv6/lir/eix joint sessions RIPE40

[Takashi Arano <]

Hi,

>D.  New IPv6 Address Policy Proposal
>     Gerard Ross (APNIC)
>     Takashi Arano (JPNIC/Asia Global Crossing)    

Here is another IPv6 address policy proposal which
reached consensus in AP regions. 
I am sorry for late submission.

Regards,
Takashi Arano
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New Draft Proposal of IPv6 Address Policy
         - Consensus reached in the APNIC Open Policy meeting in Taipei

                                 27/9/2001
                                 Gerard Ross(APNIC)
                                 Takashi Arano(JPNIC/Asia Global Crossing)

1. Background of this proposal

This document is a draft proposal for IPv6 Address allocation/assignment
policy, based on the discussion results in the last APNIC Open Policy
Meeting in August 2001 at Taipei.  At that meeting, two proposals for IPv6 address
policy were presented.
One is RIRs (APNIC)'s proposal by compiling RIPE/ARIN mailing list discussion and  
the other is a proposal based on the consensus among Japanese IP community 
such as JANOG, WIDE, etc. presented by JPNIC.

After some discussion there, two proposals were merged and 
the merged version got some consensus among meeting participants.


2. Basic principles

Any IPv6 policy should follow the basic idea of traditional IPv4 address policy
such as slow start, concept of address lease, etc.
The policy has 5 goals which are mutually conflicted and should be well balanced;
         Uniqueness
         Registration
         Aggregation
         Conservation and
         Fairness.
Main difference in IPv6 is 
- Lower priority on conservation and
- Higher priority on aggregation


3. Initial Allocation Criteria

justification of /36
At HD-Ratio 0.8 (18.9% of /36), this is 776 sites.

4. Initial Allocation Size

Shorter prefix of either 
         evaluation of existing IPv4 infrastructure or 
         the fixed size /32 (i.e. /32 is the minimum allocation size)

This means an applicant who has large IPv4 infrastructure can be allocated
more than /32 with some justifications. 
This can avoid unnecessary address fragmentation.

Note that the number /32 was supported by almost all meeting participants
according to the show of hands.


5. Subsequent Allocation Criteria

Subsequent allocation requested when HD-Ratio utilization level is reached. 
The value of HD-Ratio should be between 0.8 and 0.85. 
But in the meeting, we have no clear consensus on this number
and need to investigate more.

6. Nth Subsequent Allocation Size

Shorter prefix of either 
         previous (n-1)th allocation size minus 1 or 
         evaluation of two year requirements submitted.

  This means organizations satisfying the HD-Ratio criteria can obtain
at least one bit shorter prefix. If they need more, they can
demonstrate their requirements. In this case, RIRs evaluate their
requirements and allocate prefixes enough to satisfy two year requirements.


7. Allocation:  LIR to ISP

LIR can decide the allocation criteria and size for their customer
ISP, but they must report sum of all /48s to RIR when they come back
to RIR for subsequent allocation in evaluation of normal HD-ratio.


8. Assignment to end user

LIR assigns /48(in most cases), /64 or /128 to end users, depending
on situations. However, RIR/NIR must not concern what
size LIR assigns to them because it is within IETF's boundary.

If end users use up /48 and need more, they can request an additional
/48 with justification.  This request will be processed in the RIR/NIR
level.


9. Definition of 'site'

The HD-Ratio is measured by the number of 'sites' with /48 address.

A 'site' is identified as ISP-connection basis, i.e. every end user can
get a /48 when they get an IPv6 connection from ISP, regardless of
organization, location, etc.


10. Assignment to infrastructure

ISPs can assign up to /48 per their PoP(regarded as just one assignment).


11. DB registration

Every site (/48 address prefix) should be registered. 
Privacy concern should be covered. 

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