> From: Randy Bush > Sent: Tuesday, March 08, 2011 7:44 PM > To: Mikael Abrahamsson > Cc: nanog@nanog.org > Subject: Re: estimation of number of DFZ IPv4 routes at peak in the > future > > i am more of a pessimist. i suspect that there will be enough v4-only > destinations out there that multi-homed enterprises fronting onto > dual-stack backbones will announce teenie bits of v4 so they can nat64. > > randy
I suspect people will get varying experiences with that. That they will attempt to multi-home with teenie bits of v4 I don't disagree with but that teenie bit better be part of a larger aggregate that can reach at least one of their runs home. There will likely be considerable filtration once there is enough dual-stack pressure put on gear, and v6 being where the growth is it will get priority. Dual-homing to their ISP might be a compromise solution seen more often with v4 in that scenario.
