I just got home, having been out at a couple of interesting events today (which I will blog after the kids are in bed). However, I notice that the awesome Kenjiro Cho and the IIJ team have once again produced what looks to be a very interesting
paper on residential bandwidth consumption in fiber-rich Japan. I haven't had a chance to read it, but the abstract seems to suggest that their results may moderate the exaflood argument somewhat.
Also waiting in my inbox this evening is an awesome-looking set of
video presentations from
ARCEP's seminar on ultrabroadband - there goes my evening!
Thanks for the link to the updated report.
ReplyDeleteI looked at this in another fashion and concluded that once subscriber growth was backed out, per subscriber usage was increasing at 18% annually in Japan.
http://www.nyquistcapital.com/2007/09/10/the-bandwidth-explosion-myth/
James
ReplyDeleteInteresting. I had a quick scan, but the one term I didn't see was IPTV.
It seems to be covering just the Internet-destined traffic on the broadband line, measured at the edge router, rather than anything else broken out at the DSLAM / head end.
Also, I'm not sure if there is unbundled local loop (or fibre+wholesale) in Japan, which might decouple subscriber numbers from physical fibre/copper deployment.
The other question is whether Content Distribution Networks are included in their peering stats, or whether that traffic is siphoned off elsewhere & doesn't show in the numbers.
Dean