[address-policy-wg] 2009-05 New Policy Proposal (Multiple IPv6 /32 Allocations for LIRs)

Gert wrote:

> 
> So I think this discussion should move towards:
> 
>  - find examples of networks that have problems with the current policy,
>    and try to figure out common criteria
> 

  Gert, I don't think that at the moment we can find more examples other than
  you mentioned in your letter, ie.  Telcos and NREN networks.
  To some extent it understandable. Big ISP need more time to prepare
  themselves, especially in the access area. NREN networks tend to see
  problems rather sooner than later. Others will follow as Dami said
  "when they face the problem".
  On the other hand the interest in and discussion on this matter is
  surpisingly small.


> 
>  - formulate criteria for "additional allocations" that can get 
>    (rough) consensus
> 

  As you clearly stated in one of your letters it almost impossible
  to apply HD-Ratio to a big ISP. To succesfully run such a business you must
  assume some hierarchy in addressing scheme. Any hierarchy leads to address
  waste anf if you stick to this you will never reach HD-Ratio. 
  This is a 'real life'

  If not to big ISP where else we can apply HD-ratio? Other LIRs will never
  reach it. The conclusion is rather surpising. We can silently drop
  HD-Ratio criteria and nothing wrong will happen.
  In IPv6 world HD-Ratio seems not to work as well as in IPv4


  The only criteria which is meaningfull to me is:

  "The routing reason" whatever it means. 

  Maybe we can leave it to the hostmaster staff to decide whether subsequent
  allocations are justifiable. They earned our trust.
  For the beginning they can apply this to those LIR's which already
  use separate routing polices in IPv4 world.


> 
>  - re-word the policy proposal accordingly
> 

   We can have something like this:

---
  5.2.1. Subsequent allocation criteria:

  a)  An LIR may request an additional minimum allocation size for a second
      and subsequent separate routing policy.

  b)  Subsequent allocation will be provided when an organisation (i.e. ISP/LIR)      satisfies the evaluation threshold of past address utilisation in terms of      the number of sites in units of /56 assignments. The HD-Ratio [RFC 3194]
      is used to determine the utilisation thresholds that justify
      the allocation of additional address as described below.

---
  We can leave point b) in a case somebody reaches the HD-Ratio :)


The policy does not have to be perfect. It was changed several times
and it will be changed again. At worst we will end up with a few fundered
additional IPv6 prefixes which is insignificant to what we have in IPv4 now.


Kind regards,


Jurek