[sig-policy] prop-141-v003: Change maximum delegation, size of IPv4 address from 512 ( /23 ) to 768 (/23+/24) addresses
Dear SIG members,
A new version of the proposal "prop-141-v003: 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://conference.apnic.net/52/program/schedule/#/day/4
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 earlier versions is available at:
http://www.apnic.net/policy/proposals/prop-141
Regards,
Bertrand and Ching-Heng
APNIC Policy SIG Chairs
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prop-141-v003: 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://www.apnic.net/manage-ip/ipv4-exhaustion/ ) the available
and reserve pool size is as follows:
Available Pool : IP Address 3,782,144 | 14,774 Of /24
Reserved Pool : IP Address 1,831,680 | 7,155 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 even 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 totaling 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 totaling of 768 (/23+/24) addresses. This proposal also indicates how
APNIC will distribute the IPv4 resources
systematically when the available pool size reduces.
Increasing the maximum IPv4 delegation size from 512 ( /23 ) to 768
(/23+/24) address pool will allow Newcomers
and also Existing APNIC account holders to get maximum number of IPv4
address resources.
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 pool comes down
to 900,096 IPv4 addresses i.e. < 3516x/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 pool 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.
The very first time the reserved and available pool goes below 190,000
IPv4 addresses, then the IPv4 reserved pool
(APNIC-127 Section 5.1.1) for Future Use of /16 (i.e. 256 x /24s) will
be added to the available pool.
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 :
New APNIC Member 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 who only has less IPv4 resources can
apply for maximum delegation respectively
maintaining the criteria matched with section 7.0.
If the available IPv4 Pool size, which consists of available and reserve
pool, reaches 900,096 addresses (3516, /24s
after last delegation), the delegation size will automatically become
512 (/23) IPv4 addresses.
If the available IPv4 Pool size, which consists of available and reserve
pool, reaches 256,000 IPv4 addresses (i.e.
1000 /24s after last delegation), the delegation size will be reduced to
256 (/24) IPv4 addresses. The very first
time the reserved and available pool goes below 190,000 IPv4 addresses
then, the IPv4 reserved pool of /16 (256 /24s)
will be added to the available pool (APNIC-127 Section 5.1.1).
At any point, if APNIC receives a large block of recovered/returned/etc
IPv4 address space increasing the total
available address space and moved into the previous threshold then, the
delegation size will revert back to previous
delegation size as well. Also, all delegations at this stage have to be
made retrospectively i.e. any member who
received smaller delegation size will be eligible to receive more IPv4
addresses as per this policy, based on their
usage criteria matched with section 7.0 and availability of addresses.
Whenever the next threshold is met then all resource requests received
on the day and all those under review should
be dealt with by the previous threshold.
Threshold Stages for IPv4 addresses (Available + Reserved):
Stage 1 - More than 900,000 IPv4 addresses: Delegation Size /23 + /24
Stage 2 - Less than 900,000 IPv4 addresses and more than or equal to
256,000 IPv4 addresses: Delegation Size /23
Stage 3 - Less than 256,000 IPv4 addresses and more than 190,000 :
Delegation Size /24
Stage 4 - Less than 190,000 IPv4 addresses add APNIC-127 5.1.1 Reserved
/16 to available pool: Delegation Size /24
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 Organization who already became an APNIC member and has less IPv4
Resources can also apply for maximum delegation.
7. References
-------------
[1] Section 6.1. "Minimum and maximum IPv4 delegations" of "Policies for
IPv4 address
space management in the Asia Pacific region"
https://www.apnic.net/community/policy/resources#6.1.-Minimum-and-maximum-IPv4-delegations
--
Cordialement,
___________________________________________
Bertrand Cherrier
Administration Systèmes - R&D
Micro Logic Systems
https://www.mls.nc
Tél : +687 24 99 24
VoIP : 65 24 99 24
SAV : +687 36 67 76 (58F/min)