Hi everyone… i need hellllppppp!!! 
I have this configuration:
Linux squid 2.7 with zph enabled
1.- First RB450G:
chain=prerouting action=mark-packet new-packet-mark=Cache-HIT passthrough=no in-interface=ether1-gateway dscp=12
and traffic is back to the speed which determines the queue that captures the mark’s Cache-HIT.. so at this point, everything is fine.
2.- Second RB450G want to catch packets with DSCP 12 from Linux box… and had this rule:
chain=prerouting action=mark-packet new-packet-mark=CACHE-HIT passthrough=no in-interface=ether1-gateway dscp=12
(same of 1.- RB450)
and the traffic is matched and marked with CACHE-HIT but… in this RB450G i had Webproxy enabled, then traffic is not returned at the rate that determines the queue that match the mark’s CACHE-HIT, because the traffic is sent by the webproxy
I try to match th traffic from webproxy with
chain=output action=mark-packet new-packet-mark=CACHE-HIT passthrough=no dscp=4
and only few hit got… 
is a way to do this, without disabling the webproxy? I need to control content … 
sorry bad english