Brian, It would seem to me that the purpose of an experimental RFC is to let people perform and participate in (rather public) experiments on the Internet. A reasonable standard for "experimental" is that there be a thesis and a procedure so that the experiment can be repeated, observations can be made, and conclusions can be drawn. The thesis should be clear as to what is being tested, and it should at least pass the laugh test. Further, the standard for design of the experiment should provide for the least practicable interference with other ongoing operations (experimental or not). So, is that simple enough or too simplistic? Eliot _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf