On Wed, Apr 24, 2013 at 12:55 PM, Lee Howard <Lee@asgard.org> wrote:
On 4/24/13 10:18 AM, "Andrew Latham" <lathama@gmail.com> wrote:
* Tore
On Wed, Apr 24, 2013 at 1:46 AM, Tore Anderson <tore@fud.no> wrote:
* Andrew Latham
I have sadly witnessed a growing number of businesses with /24s moving to colocation/aws networks and not giving up their unused network space. I assume this will come into play soon.
A couple of /24s being returned wouldn't make a significant difference when it comes to IPv4 depletion. Heck, not even a couple of /8s would. Trying to reclaim and redistribute unused space would be a tremendous waste of effort.
If I can walk around a smallish town and point at 5 businesses like this its a possible solution. I am not claiming a few /24s will do, I am claiming that there are many (for larger values of many) companies like this.
Look at NRO statistics prior to APNIC and RIPE final /8 (runout). It's pretty linear growth. Is that the real demand for IPv4 addresses? In the last couple of years it was 10-15 /8 equivalents.
How many addresses do you think can be released (whether reclaimed or, as is more likely, brought into the market)? A /8? Five /8s? Say it's a billion addresses made available to a market. That only feeds demand for 18-30 months.
A demand curve would show that as prices increase, there is demand for fewer IPv4 addresses. However, nobody knows the slope of the curve (other than my speculation about cost of IPv6 and TCO of CGN as points where the demand shifts). A supply curve would show that as prices increase, more addresses become available (transfers, renumbering, eventually substitution). I'm working on ideas about that slope.
Lee
Lee Totally agree, your point is the larger issue at hand, just pointing out and ugly issue that I witnessed recently. Corporate networks and ASNs totally off and not in use. But don't worry, they will use them if someone tries to take them away. -- ~ Andrew "lathama" Latham lathama@gmail.com http://lathama.net ~