On Mon, 2012-07-09 at 18:22 +0530, Ben wrote: > We are running squid since long time and it is working fine.Now days, we > migrated squid for RHEL 6 to use qos_flow DSCP marking parameter. > > For testing purpose at lab, we deploy two squid box, one with rhel rpm ( > Version 3.1.19 ) and on second box with squid source compilation ( > Version 3.1.20 . You might want to consider the v3.2 tree, in which the QOS marking features were updated. Andy