RED deployment testing

I have a related Question, what OID are you using to display Dropped

A number of people have asked me how to monitor dropped packets so
rather than answer another either...

. (or just ifOutDiscards.n) where n is the
interface number. What would really be nice is if I could do trending
on the queue length (ifOutQLen), if anyone has any ideas on how to
systematically monitor that, I'd be interested in hearing how you it is