I can do a double queue then my ISP is something like PPPoE. But what should i do if i got my ISP directly on an ethernet interface? In this case packets pass a queue just once 
This question can be expanded to triple and so on queues. Is there any way to make it on single ROS? Maybe i should flush all my traffic through some virtual interface to queue it once more?
The main purpose of this is to make a double PCQ: first one slices by IP (1), second by every connection (2). It equalizes users (1) and make their own life easier then they run torrents and surfing or playing online at the same time (2).