[address-policy-wg] 2010-05 New Policy Proposal (Global Policy for IPv4 Allocation by the IANA post exhaustion)
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Scott Leibrand
scottleibrand at gmail.com
Mon Aug 30 23:33:07 CEST 2010
Leo Vegoda had a good post on this same topic over on the APNIC list that may answer your question: On Mon 8/16/2010 10:54 AM, Leo Vegoda wrote: > Hi Philip, > > On 16 Aug 2010, at 4:37, Philip Smith wrote: > > [...] > >>> 5.1 Reclamation Pool >>> >>> Upon adoption of this IPv4 address policy by the ICANN Board of >>> Directors, the IANA shall establish a Reclamation Pool to be >>> utilized post RIR IPv4 exhaustion as defined in Section 4. The >>> reclamation pool will initially contain any fragments that may be >>> left over in IANA inventory. >> I understood that IANA was exhausting its entire pool. Or is exhaustion >> really just complete /8s? It would be helpful if someone from IANA could >> clarify as I was under the impression that remaining fragments would be >> distributed as well, certainly before IANA declared that the cupboard >> was bare. The remaining fragments are not insignificant. > I can't speak for the authors but I can describe what we "have in stock" and what the ratified policies allows us to do. The only IPv4 address blocks we have with an UNALLOCATED status are whole /8s. Further, the current policy we implement only allows us to allocate /8s: > > " * The IANA will allocate IPv4 address space to the RIRs in /8 units." > -- http://www.icann.org/en/general/allocation-IPv4-rirs.html > > Similarly, the policy for allocating the last blocks required that they be allocated in /8s, too: > > "IANA will automatically allocate the reserved IPv4 allocation units to each RIR (one /8 to each one)" > -- http://www.icann.org/en/general/allocation-remaining-ipv4-space.htm > > My personal interpretation of the text above was the the "Reclamation Pool" would only be a potential pool unless and until one of the RIRs found that they no longer needed the IPv4 address space they were recovering and could return it to IANA for re-distribution. If I've misunderstood the authors' intentions I am sure that they will correct me. > > Kind regards, > > Leo Vegoda > * sig-policy: APNIC SIG on resource management policy * > _______________________________________________ > sig-policy mailing list > sig-policy at lists.apnic.net > http://mailman.apnic.net/mailman/listinfo/sig-policy On Mon 8/30/2010 2:22 PM, Chris Grundemann wrote: > On Mon, Aug 30, 2010 at 14:51, Tore Anderson > <tore.anderson at redpill-linpro.com> wrote: > >> The proposal says the following: «The reclamation pool will initially >> contain any fragments that may be left over in IANA inventory». >> >> You didn't comment on it in your first reply, but if these fragments >> indeed are the unused space in the legacy /8s (I don't know what else >> they could be), the initial contents of the RP would be some 125.4M >> addresses, according to Geoff Huston's IPv4 Address Report >> (http://ipv4.potaroo.net/). That's a sizable chunk... > It certainly is. > > When this topic came up in our initial conversations, we asked an IANA > representative about fragments and were told that IANA did not > currently have any. My understanding is that this may be due to a deal > that was struck between the IANA and the NRO - but I do not have any > authoritative information on that at this time. > > Geoff Huston's report states that: "At the time IANA reaches the last > 5 /8s (the "IANA Exhaustion time" as defined by current address > allocation policies), these unassigned addresses in the legacy /8s are > then distributed evenly to the RIRs." I am not sure where this > information came from though, since this is not spelled out in the > "Allocation of the Remaining IPv4 Address Space" policy > (http://www.icann.org/en/general/allocation-remaining-ipv4-space.htm) > as far as I can discern. > > And of course the IANA report > (http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.xml) > shows all of the "various/legacy" /8s as being administered by > individual RIRs, since it only has a /8 granularity. > > So there is some confusion (on my part at least) as to where these > fragments currently reside and who has responsibility for them. > Perhaps if someone from IANA monitors this list they can chime in? If > not, I and the other authors will certainly be following up to iron > these fairly significant details out. I apologize for not having a > more complete answer. Someone else can likely provide more detail, but my understanding is that the various /16s in legacy swamp space (the "various/legacy" listings there) are all allocated to (or administered by) individual RIRs, and they're just listed that way because the IANA list doesn't show anything more granular than a /8. So, as far as I can tell, the reclamation pool would initially be empty, unless/until someone returned something smaller than a /8 to IANA. -Scott
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