On Jan 25, 2011, at 2:07 PM, valdis.kletni...@vt.edu wrote: > On Tue, 25 Jan 2011 16:17:59 EST, Ricky Beam said: >> On Mon, 24 Jan 2011 19:46:19 -0500, Owen DeLong <o...@delong.com> wrote: >>> Dude... In IPv6, there are 18,446,744,073,709,551,616 /64s. >> >> Those who don't learn from history are doomed to repeat it. >> >> "Dude, there are 256 /8 in IPv4." >> >> "640k ought to be enough for anyone." >> >> People can mismange anything into oblivion. IPv6 will end up the same >> mess IPv4 has become. (granted, it should take more than 30 years this >> time.) > > To burn through all the /48s in 100 years, we'll have to use them up > at the rate of 89,255 *per second*. > > That implies either *really* good aggregation, or your routers having enough > CPU to handle the BGP churn caused by 90K new prefixes arriving on the > Internet > per second. Oh, and hot-pluggable memory, you'll need another terabyte of RAM > every few hours. At that point, running out of prefixes is the *least* of > your > worries. > This presumes that we don't run out of /48s by installing them in routers a /20 at a time.
Owen