IPV6: Adoption driven by smartphones?
Horace Dediu of asymco charts commodity computing up-take (as yearly sales) since 1975 in " The evolution of the computing value chain ". It includes personal computers, smartphones and more. Current PC (desktop+laptop) and Android sales are about equal at 350MM/year, with iPhones ~150MM/year and iPads closing in on 100MM/year: or near 1Bn new personal compute devices per year. With current growth rates, how soon will we saturate the IPV4 address space? There are two questions in there: How many IPV4 addresses are left? Where? Each region has its own challenges. How fast is the demand for Internet addresses growing? New Sales are not the whole story: replacements account for most sales in mature markets. The active PC fleet is now somewhat static. When the smartphone and tablet markets mature, Sales will still hold up with replacements catering for the 2-5 year product life. The 32-bit IPV4 address space can assign no more than 4Bn unique identities. My guesstimate of realis...