An informal survey... round II

William Herrin herrin-nanog at
Thu Aug 30 13:12:20 UTC 2007

On 8/30/07, John Curran <jcurran at> wrote:
> I.E.  If at some time unknown around 2010, ISP's stop receiving
> new allocations from their RIR, and instead use of many smaller
> "recycled" IPv4 address blocks, we could be looking at a 10x to
> 20x increase in routes per month for the same customer growth.


Why should we announce tiny recycled blocks? If there is a /16 in the
swamp in which half the space is free but its all /24's, why wouldn't
wouldn't we allocate all the free /24's to a single entity and
instruct the entity to announce it as a "holey" /16? The existing /24
holders will override (punch holes in) the /16 for their /24's.

Bill Herrin

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

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