well - if we are presuming a -FLAT- space, then IPv4 will last a great deal longer than 2011. and tell your vendors to pump up the CAM/ARP table sizes ... and bring back the ARP storms of the 1980s. (who owns the vitalink codes base anyway?) --bill On Mon, Oct 05, 2009 at 05:47:12PM -0400, Dorn Hetzel wrote:
The estimated mass of our galaxy is around 6x10^42Kg. The mass of earth is a little less than 6x10^24Kg.
2^128 is around 3.4x10^38. So in a flat address space we have about one IPV6 address for every 20,000Kg in the galaxy or for every 20 picograms in the earth...
One would hope it would last for a while :)
On Mon, Oct 5, 2009 at 5:32 PM, <bmanning@vacation.karoshi.com> wrote:
considered top posting to irritate a few folks, decided not to.
On Mon, Oct 05, 2009 at 04:20:44PM -0500, Chris Owen wrote:
On Oct 5, 2009, at 1:43 PM, Wayne E. Bouchard wrote:
Whenever you declare something to be "inexhasutable" all you do is increase demand. Eventually you reach a point where you realize that there is, in fact, a limit to the inexhaustable resource.
This is where I think there is a major disconnect on IPv6. The size of the pool is just so large that people just can't wrap their heads around it.
2^128 is enough space for every man, woman and child on the planet to have around 4 billion /64s to themselves. Even if we assume everyone might possibly need say 10 /64s per person that still means we are covered until the population hits around 2,600,000,000,000,000,000.
Chris
here, you expose a hidebound bias to 20th century networking. please remember that - with few exceptions - people network at a very different level than machines. people don't need IP addresses - computing nodes that want to communicate do.
Just for grins, put a unique IPv6 address in every active RFID tag. ... and remember that there are RFID printers that can put 18 tags on a single A4 sheet. Numbers will become disposible, like starbucks coffee cups and MCD's bigmac containers.
--bill