There are some notes written by Jamal that come with the iproute2 source that describe some very significant features that are not even hinted at in the lartc document. They aren''t real easy to run across if you don''t know they exist and even when I did first see them, I wasn''t sure if they represented the current state of things. I also ran across IMQ and it took me a while to realize that was a dead end. It would be nice if at least the part on ingress filtering references them. The pipe action and ifb devices provide a way to overcome a lot of the ingress filtering limitations mentioned in the lartc document. The random action and packet mirroring action are probably of interest to people as well. It would have saved me a fair amount of time if these had been included as part of the lartc document.