Very very very near to, but not quite 100%. Since almost all of the traffic on the Internet isn't sourced by or destined for me, I consider it junk. Also remember that to a packet kid, that insane flood of packets destined for his target is the most important traffic in the world. And to a spammer, the very mailings that are making him millions are more important than pictures of someone's grandkids. I guess my point is junk is a very relative term. A study would need to first be done to identify what junk actually is, then measuring it is trivial. -Mike -----Original Message----- From: William B. Norton [mailto:wbn@equinix.com] Sent: Wednesday, May 05, 2004 11:21 AM To: nanog@merit.edu Subject: What percentage of the Internet Traffic is junk? With all the spam, infected e-mails, DOS attacks, ultimately blackholed traffic, etc. I wonder if there has been a study that quantifies What percentage of the Internet traffic is junk? Bill