The measurement techniques described thus far focus on performance within the bounds of a single network. While this is of course a challenge, what about efforts to measure performance _across_ networks? I'm not talking about NAP packet loss here, but a true measure of expected customer satisfaction.
Expectations of customer satisfaction are aleph nul or likely aleph one. Measurement of end user delivery are being done rather ad hack (hit the web site and see how high it bounces) by the folk at Intel, see Network Working Group J. Sedayao, Intel Corporation C. Bickerstaff, Intel Corporation Internet Draft Expiration Date: May 1997 November 1996 Simple End to End Metrics and Methods for Monitoring and Measuring IP Provider Performance The IPPM WG is trying to work upward from a sound theoretical base. See the other IPPM drafts and mailing list archives. randy