On Apr 19, 2010, at 6:50 AM, Florian Weimer wrote: > * Patrick W. Gilmore: > >>> I'm not so sure. Name-based virtual hosting for plain HTTP was >>> introduced when Windows NT 4.0 was still in wide use. It originally >>> came with Internet Explorer 2.0, which did not send the Host: header >>> in HTTP requests. >> >> NT4 was never heavily adopted by users. > > It was fairly popular on corporate desktops, until 2005 or so. You > really don't want to know details. > >> Also, not nearly as many billions were being sold on e-commerce >> sites. > > We're talking pretty much recent history here, closer to 2005 than to > 2000. Here are some statistics from a popular IT web site in Germany, > from mid-2006: > > <http://www.heise.de/newsticker/meldung/Mozilla-Firefox-gewinnt-wieder-Marktanteile-140479.html> > > They report a 2.5% market share. Of course, these clients weren't > running Internet Explorer 2.0 anymore, and this offers a clue what > will happen if SNI is a desirable feature in browsers. 8-)
I had an interesting discussion with someone from Registration Services at ARIN today. The big requests for IP space (the 11 organizations that hold 75% of all ARIN issued space) do not come from the server side... They come from the eye-ball ISPs. The only /8 issued by ARIN to an ISP, for example, was issued to a cable ISP. With this in mind, I don't think there's much to be gained here. Optimizing the utilization of less than 25% of the address space in the face of the consumption rate on the 75% side simply cannot yield a meaningful result. It really is akin to rearranging the deck chairs on the Titanic. Owen