Re: [sig-policy] New Proposal prop-141-v001: Change maximum delegation size of IPv4 address from 512 ( /23 ) to 768 (/23+/24) addresses

["Srinivas (Sunny) Chendi" <sunny@apnic.net>]

Dear all,

Here is the Secretariat impact assessment for proposal "prop-141-v001: 
Change maximum
delegation size of IPv4 address from 512 ( /23 ) to 768 (/23+/24) 
addresses".

APNIC notes the proposed delegation of additional /24 to the existing 
members, as per the
criteria under Section 7.0 "Subsequent IPv4 delegations" who received a 
maximum of /23
(under current policy) after Thursday, 28 February 2019, and the 
proposed new
policy to change the IPv4 maximum delegation size to a /23 +/24 to the 
new members.

APNIC also notes the following proposed thresholds:
- IPv4 maximum delegation size will automatically changes to a /23 if 
the available (incl reserved) IPv4 pool comes down to 900k.
- IPv4 maximum delegation size will automatically changes to a /24 if 
the available (incl reserved) IPv4 pool comes down to 256k, and
add the /16 reserved for future use to the available pool.

This proposal would require changes to the website content, procedure 
documents and manuals, training material, membership
forms and various registry systems.

If this proposal reaches consensus, implementation may be completed 
within 3-6 months.

Clarifications required:
1. When the available IPv4 pool is down to 900k or 256k, and in case if 
a large IPv4 address space is added to this available pool,
will the maximum delegation size automatically revert to /23+/24 or /23, 
or not?

Regards,
Sunny

On 13/08/2021 10:00 am, Bertrand Cherrier wrote:
> Dear SIG members,
>
> The proposal "prop-141-v001: Change maximum delegation size of IPv4
> address from 512 ( /23 ) to 768 (/23+/24) addresses" has been sent
> to the Policy SIG for review.
>
> It will be presented at the Open Policy Meeting (OPM) at APNIC 52
> on Thursday, 16 September 2021.
>
> https://aus01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fconference.apnic.net%2F52%2Fprogram%2Fschedule%2F%23%2Fday%2F4&data=04%7C01%7C%7C0c88d9ff2a3e4b77366608d95ded6d87%7C127d8d0d7ccf473dab096e44ad752ded%7C0%7C0%7C637644097784605051%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=RgeAtrf1ze9SiEEHqSpVoB1dZJ4mv8O0oygInlB%2Bt7Y%3D&reserved=0 
>
>
> We invite you to review and comment on the proposal on the mailing
> list before the OPM.
>
> The comment period on the mailing list before the OPM is an important
> part of the Policy Development Process (PDP). We encourage you to
> express your views on the proposal:
>
>   - Do you support or oppose this proposal?
>   - Does this proposal solve a problem you are experiencing? If so,
>     tell the community about your situation.
>   - Do you see any disadvantages in this proposal?
>   - Is there anything in the proposal that is not clear?
>   - What changes could be made to this proposal to make it more 
> effective?
>
> Information about this proposal is appended below and also available at:
>
> https://aus01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.apnic.net%2Fpolicy%2Fproposals%2Fprop-141&data=04%7C01%7C%7C0c88d9ff2a3e4b77366608d95ded6d87%7C127d8d0d7ccf473dab096e44ad752ded%7C0%7C0%7C637644097784605051%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=alrD0MZrJcV9sfP3%2FEs3zy1Ynz8YBXx4zEQHsLQcZGs%3D&reserved=0 
>
>
> Regards,
> Bertrand and Ching-Heng
> APNIC Policy SIG Chairs
>
>
> -------------------------------------------------------
>
> prop-141-v001: Change maximum delegation size of IPv4 address from 512 
> ( /23 ) to 768 (/23+/24) addresses
>
> -------------------------------------------------------
>
> Proposer: Simon Sohel Baroi (sbaroi@gmail.com)
>           Aftab Siddiqui (aftab.siddiqui@gmail.com)
>
>
> 1. Problem statement
> --------------------
> According to the APNIC IPv4 Address Report, 
> (https://aus01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.apnic.net%2Fmanage-ip%2Fipv4-exhaustion%2F&data=04%7C01%7C%7C0c88d9ff2a3e4b77366608d95ded6d87%7C127d8d0d7ccf473dab096e44ad752ded%7C0%7C0%7C637644097784605051%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=AjbAiqtC5RbvKPGDEVADmSrxJILXwC4Avl4sfQyNNAw%3D&reserved=0 
> ) the available and reserve pool size is as follows:
>
> Available Pool : IP Address 3480064 | 13594 Of /24
> Reserved Pool : IP Address 2240000 | 8750 Of /24
>
> If APNIC continues to delegate IPv4 in size of /23 with the average 
> growth rate of 145 x /23 delegations per month the pool will be 
> exhausted around Aug/Sep 2027. Which means the huge number of IPv4 
> addresses will be unused for a long time and large community members 
> will still remain behind the NAT box or without Internet Connectivity.
>
>
> 2. Objective of policy change
> -----------------------------
> The current final /8 allocation policy [1] advise that the current 
> minimum
> delegation size for IPv4 is 256 ( /24 ) addresses and each APNIC 
> account holder is only eligible
> to receive IPv4 address delegations totalling a maximum 512 ( /23 ) 
> addresses from the APNIC 103/8 IPv4 address pool.
> (6.1. Minimum and maximum IPv4 delegations )
>
> This is a proposal to change the maximum size of IPv4 address delegations
> from the available IPv4 address pool to a totalling of 768 (/23+/24) 
> addresses.
>
> Increasing the maximum IPv4 delegation size from /23 to /23+/24 IPv4 
> address pool will allow Newcomers and also Existing APNIC account 
> holders who only received /23 after Thursday, 28 February 2019 to 
> receive 256 (/24) IPv4 addresses.
>
>
> 3. Situation in other regions
> -----------------------------
> There is no similar policy in place in other RIR regions.
>
>
>
> 4. Proposed policy solution
> ---------------------------
> It is recommended to increase the IPv4 address delegation size from 
> 512 max (/23) to 768 (/23 + /24). The address space can now be 
> allocated from the available 103/8 last /8 block and/or from non 103/8 
> recovered address blocks. This policy will continue until the 
> available + reserved comes down to less than 900,000 IPv4 addresses 
> i.e. < 3500x/24, once reaching this threshold the maximum delegation 
> size will revert back to 512 IPv4 addresses (/23) and will continue to 
> do so until the available + reserved block comes down to 256,000 IPv4 
> addresses i.e 1000x/24 then the delegation size will further reduce to 
> 256 IPv4 addresses i.e. /24 and at this time the /16 reserved for 
> future use (as per APNIC-127 Section 5.1.1) will be added to the 
> available address block.
>
> It is proposed to modify the section 6.1 maximum IPv4 delegations of 
> the APNIC Internet Number Resource Policies [1] accordingly.
>
> Current Policy text
>
> Since Thursday, 28 February 2019, each APNIC account holder is only 
> eligible to receive IPv4 address delegations totalling a maximum /23 
> from the APNIC 103/8 IPv4 address pool.
>
> New Policy text
>
> Each APNIC account holder is only eligible to receive IPv4 address 
> delegations totalling a maximum 768 ( /23+/24 ) from the APNIC 
> available IPv4 address pool.
>
> Existing APNIC account holders (since Thursday, 28 February 2019 ), 
> who only have /23 can apply for another /24 maintaining the criteria 
> matched with section 7.0.
>
> If the available IPv4 Pool size, which consists of available and 
> reserve pool, comes down to 900,000 addresses, delegation size will 
> automatically come down to 512 (/23) IPv4 addresses.
>
> If the available IPv4 Pool size, which consists of available and 
> reserve pool, comes down to 256,000 addresses, delegation size will 
> automatically come down to 256 (/24) IPv4 addresses. In this situation 
> APNIC will also add /16 reserved blocks in to the available pool which 
> is reserved for future use as per APNIC-127 Section 5.1.1
>
>
> 5. Advantages / Disadvantages
> -----------------------------
> Advantages:
> - This proposal will ensure smooth allocation of IPv4 addresses to 
> existing and new APNIC members.
>
> Disadvantages:
> - This might add up to 10,000 /24s into the global routing table i.e. 
> 1.2% increase. The current growth rate without this policy is 
> approximately 7% every year.
>
>
> 6. Impact on resource holders
> -----------------------------
> The Organisation who became an APNIC member after Thursday, 28 
> February 2019 and received only /23, can receive another /24 IPv4 
> Resources.
>
>
>
> 7. References
> -------------
> [1] Section 6.1. "Minimum and maximum IPv4 delegations" of "Policies 
> for IPv4 address
> space management in the Asia Pacific region"
> https://aus01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.apnic.net%2Fcommunity%2Fpolicy%2Fresources%236.1.-Minimum-and-maximum-IPv4-delegations&amp;data=04%7C01%7C%7C0c88d9ff2a3e4b77366608d95ded6d87%7C127d8d0d7ccf473dab096e44ad752ded%7C0%7C0%7C637644097784605051%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&amp;sdata=EsAXv%2BJcqVXbWWus5%2F6jYSPWnmdkM2VIqutlVadPXpc%3D&amp;reserved=0 
>
> *              sig-policy:  APNIC SIG on resource management 
> policy           *
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--

_______________________________________________________________________

Srinivas (Sunny) Chendi
Senior Advisor - Policy and Community Development

Asia Pacific Network Information Centre (APNIC) |  Tel: +61 7 3858 3100
PO Box 3646 South Brisbane, QLD 4101 Australia  |  Fax: +61 7 3858 3199
6 Cordelia Street, South Brisbane, QLD          |  http://www.apnic.net
_______________________________________________________________________