[LARTC] Re: [Linux Diffserv] TC architecture made for Diffserv on linux is wrong !!! why?

Linux Advanced Routing and Traffic Control

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jinho Hwang wrote:
> 	As this output's sch_dsmark has a FIFO queue, Best effort traffic
> and AF classes traffic is 
> 		combined and does not guaranteed AF classes.

Hmm, so why don't you use CBQ/PRIO and maybe GRED then, i.e. something
that gives AF priority over BE ?

> 	To solve  these demerits, I made  ingress marker in linux kernel 2.4.x.
> 	that is, I take DSCP marking part 's position in input device part .

You don't have to mark in order to classify based on the DS field.
Just use skb->tc_index to convey that information. You can set
skb->tc_index at ingress or at egress (with dsmark).

- Werner

-- 
  _________________________________________________________________________
 / Werner Almesberger, Lausanne, CH                    wa@xxxxxxxxxxxxxxx /
/_http://icawww.epfl.ch/almesberger/_____________________________________/



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