On Monday 25 November 2002 07:25, Brian Capouch wrote: I agree with Stef, where is the bottleneck? Not only that but what are you trying to shape? Without knowing the other constraints and variables, by debating somebody who holds different variables as constraints you are sure to always get difference of opinion. Art Reisman www.apconnections.net > I got into a "spirited discussion" tonight about just what the upstream > effects of traffic shaping look like. > > In the case in point, a private WAN with quite a few routers connects t= o > a number of Internet POPs. In some cases, the "leaves" are three or > four hops from the backbone source. > > The central focus of the discussion was the relative harm/benefit from > putting the traffic shaper at the point where the bandwidth hits the > Internet, at one extreme, versus at the "last-hop" routers on the other= =2E > > I won't go into the details as I suspect there is probably a cut and > dried answer. > > And rather than proffering my own ideas, I would rather not embarrass > myself and just ask the experts. It all depends on the network configuration. You have to shape on the=20 bottleneck on the network. If you don't do that, your shaping can be und= one=20 by the bottleneck. =20 Stef