> This is most obviously true when looking at a station, but also true to some > extent in routers. To get the minds working on the router case consider the > following router: > > ppp0 256 Kpbs link to ISP > eth0 100 Mbps lan 1 > eth1 100 Mbps lan 2 > eth3 100 Mbps lan 3 > > And you want without needing to involve your ISP reasonably shape incoming > traffic received on ppp0 to not use more than 64kbps for rsync in total. > > Doing such a setup using ingress shaping is "trivial". Doing it using egress > shaping on each of the ethernet interfaces is not. for this special case I designed IMQ :)