[arin-ppml] Abandonment of 103/104

On Wed, Dec 23, 2009 at 4:21 PM, Davis, Terry L
<terry.l.davis at> wrote:
> Is there a good reason that ARIN doesn't pick
>1 to 5 hubs in a province/state and assign a /32 or larger
>to them depending on their Internet population and
>then make sub-allocations from these region prefixes
>to smaller entities in that region?
> Huge amounts of the potential global routing tables
>could then be aggregated regionally with still gaining
>the ability allow small local sub-allocations for small
> entities without much impact to the global routing.
>Then from the regional aggregations could be broken
> up locally by ISP.

Hi Terry,

You may want to peruse this IRTF RRG discussion on this topic: .

The short short version is: geographic route aggregation has been
demonstrated impractical because aggregation depends on administrative
vectors (e.g. which ISP you pay and which ones they pay) as well
physical and technological factors. For the long version with the
step-by-step gory details, read the the RRG thread.

Bill Herrin

William D. Herrin ................ herrin at  bill at
3005 Crane Dr. ...................... Web: <>
Falls Church, VA 22042-3004