a fellow researcher wants
> to make the case that in some scenarios it is very important for a
> network operator to be able to specify that traffic should *not*
> traverse a certain switch/link/group of switches/group of links
> (that's true right?). Could you give some examples? Perhaps point
> me to relevant references?if so, why? security? congestion? other? but is it common? and, if so, how do you do it? randy
