"IP networks will feel traffic pain in 2009" (C|Net & Cisco)

[vixie at isc.org (Paul Vixie)]

"Cisco VNI projections indicate that IP traffic will increase at a combined
annual growth rate (CAGR) of 46 percent from 2007 to 2012, nearly doubling
every two years. This will result in an annual bandwidth demand on the
world's IP networks of approximately 522 exabytes2, or more than half a
zettabyte."

http://news.cnet.com/8301-13846_3-10145480-62.html