On Thu, Oct 25, 2012 at 02:23:06PM +0000, Stuart Henderson wrote: > On 2012-10-25, Simon Perreault <si...@nomis80.org> wrote: > > Le 2012-10-25 00:20, Constantine A. Murenin a ??crit : > >> No dual-stacking is > >> provided; in their slides from [0], T-Mobile USA claims that IPv6-only > >> with NAT64/DNS64 is cheaper than dual-stack with NAT44. > > > > Yes. I forgot to mention another reason why the 3GPP folks like NAT64: > > most 3GPP equipment vendors charge ISPs by the number of "PDP contexts". > > AIUI the second context also affects battery use on mobile devices. > > > Currently deployed equipment can not do dual-stack PDP contexts. > > The dual-stack contexts were added in 3gpp rel-8 and improved in > rel-9 (from 2008/2009), so I guess it might take another few years > before equipment supporting this gets widely deployed and they get > the time between crashes down to an acceptable amount ;)
down? I hope you mean up ;-)
