The fiber infrastructure and the multiplexer infrastructure are good enough to support both Internet and Internet II. What the Internet lacks for Internet II today is IP tunnels with QoS. So I think that one IP infrastructure could be good enough for both and will be some day. This I believe. :-)

It **is** one IP infrastructure. The difference between a corporate intranet and the academic version - I-II - is the stringency of AUP observance and enforcement.

BTW, is someone going to build traffic monitors and diagnostic tools into the Internet II infrastructure? Any new inter-domain routing protocols? Source demand routing? QoS? Or are the universities satisfied with just more bandwidth?

One reason for any vendor to participate is to try such things in the fiercely critical yet basically friendly academic community. -s Stephen Wolff Business Development ciscoSystems 202 337 1213