Hi, I attempt to understand configuration below: TRAFFIC CLASSICIATION (I have only af31 and 1F11 in reality: ************************************************************************ class-map DSCP-OUT-D1INP match not access-group DSCP-OUT-PROBE match ip dscp  af31 exit class-map DSCP-OUT-D2INP match not access-group DSCP-OUT-PROBE match ip dscp  af21 exit class-map DSCP-OUT-D3INP match not access-group DSCP-OUT-PROBE match ip dscp  af11 exit POLICIES APPLIED TO MY CLASSIFIED TRAFFIC: *********************************************************** policy-map COS-OUT-D1 class DSCP-OUT-D1INP   police cir 552 6900 => Normally police cir is indicated in bps but in my case it seems to be indicated in kbps ???   police exceed-action set-dscp-transmit 28 exit exit policy-map COS-OUT-D2 class DSCP-OUT-D2INP   police cir 276 4500   police exceed-action set-dscp-transmit 20 exit exit policy-map COS-OUT-D3 class DSCP-OUT-D3INP   police cir 92 4500   police exceed-action set-dscp-transmit 12 exit exit GLOBAL POLICY APPLIED ON OUTPUT TRAFFIC: ************************************************************ policy-map COS-OUT class DSCP-OUT-D1   bandwidth percent 60 =>Does this parameter applie on normal traffic or during a congestion ? (For me, is during a congestion)   service-policy COS-OUT-D1 => Why using police cir and bandwidth in a same time ? exit class DSCP-OUT-D2   bandwidth percent 30   service-policy COS-OUT-D2 exit class DSCP-OUT-D3   bandwidth percent 10   service-policy COS-OUT-D3 exit exit interface atm 0.1 pvc ipoa vpi 8 vci 35   ip address X.X.X.X Y.Y.Y.Z   encapsulation mux   inarp no   qos vbr pcr 1280000 scr 1280000 mbs 1   tx-ring max-buffers 4   oam end-loopback   execute exit description *** To my link description *** service-policy input COUNT-IN service-policy output COS-OUT exit ********************************************** police cir 552 6900 => Normally police cir is indicated in bps but in my case it seems to be indicated in kbps ??? bandwidth percent 60 =>Does this parameter applie on normal  traffic or during a congestion ? (For me, is during a congestion) service-policy COS-OUT-D1 => Why using police cir and bandwidth in a same time ? Which of both parameters (bandwidth percent and service-policy) will be applied in priority ? I'am not an expert on Cisco QoS but I must be understanding this configuration for my client. Could you please help to understand correctly QoS configuration above ? Thanks in advance, regards, Franck ... View more