On 4 dec 2007, at 17:13, Brian E Carpenter wrote:
So I'd like to see /60 for consumers and /48 for anyone who feels / 60 isn't enough.
Are you sure that 16 subnets is enough for a large family house with entertainment, building services, and home office all running on various technologies? I'm not, but I'm pretty sure /56 is enough.
Switches are cheap, routers much less so, especially if you want the traffic to flow at line rate. You need routers to keep subnets apart. So I don't see how an average home is going to use more than a handful of subnets the way things are now.
There is one exception: the case where multiple routers are deployed in a cascading style and each provisions address space to the next one. Assuming a router gives up half of its own address space to its subordinate, you can have four levels of routing in your home with a / 60.