The CIX and the NSFNET regionals - a dilemma

true TOS needs the hosts to participate - not likely in this century,
the installed base is too large.

subverting TOS with a router override is doable because you only have
to change about 10K routers.

whether you should TOS for R&E vs usefuly things like high bandwith
or low latency should be debated.

but it is doable provided I carry around multiple routing tables in
my router.