[address-policy-wg] 2023-01 Review Phase (Reducing IXP IPv4 assignment default size to a /26)
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Tore Anderson
tore at fud.no
Thu Jul 6 13:04:56 CEST 2023
On Wed, 2023-07-05 at 16:52 +0200, Angela Dall'Ara wrote: > The requirement in the current policy (ripe-733) [1] that “After one > year the utilisation of the new assignment must be at least 50%, > unless special circumstances are defined" is implemented the way > Marco previously explained: the 50% utilisation refers to an > estimated projection, which must be supported by the documentation > provided by the IXP when requesting an assignment larger than the > minimum size. > > This requirement was first introduced in the ripe-604 [2] policy > document, after the approval of proposal 2013-03 [3], to maintain the > need evaluation for IXP assignments. The RIPE NCC Impact Analysis [4] > on proposal 2013-03 was: “It is the RIPE NCC’s understanding that > Internet Exchange Point assignments larger than /24 would be based on > documented calculations that allow the utilisation to be estimated > one year after the date of assignment. This utilisation should be at > least 50% of the assignment. “ Hi, I want to also point out here that the «50% after one year» requirement as well as the «special circumstances» exception were not novel concepts first introduced by 2013-03, they were simply moved (and slightly simplified) from the general section of the policy into the IXP-specific section, as the need evaluation was being removed from the former. To be clear, it was our (the 2013-03 authors) intention to leave these mechanisms essentially as-is for IXP assignments specifically. The old pre-2013-03 policy (which covered both IXP and non-IXP assignments) read as as follows: «6.3 Utilisation Rates Assignments' immediate utilisation should be at least 25% of the assigned space. After one year, this should be at least 50% of the space unless special circumstances are defined.» See https://www.ripe.net/publications/docs/ripe-599 I have not attempted to figure out exactly when this language was introduced, but I suspect it has been around for a long time. Tore
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