This is the picture: CE -- PE. Voice and Data comms are taking place here. The QoS appears to be working propperly but when there is a big load of traffic the ATM interface of the CE starts lossing packets, quality of the Voice calls gets degrade. At the same time the CPU goes up until 90% or so... QoS have been reviewed, hardware changed, etc... We're thinking that maybe the big amount of traffic makes the CPU goes up, then the router starts discarting traffic ramdonly without looking at priorities... Could be a solution creating a control-plane service policy in order to avoid the CPU increase? What do you think?