As the previous poster mentioned, CAR is legacy configuration to police traffic and Class based policing is newer and is the method recommended by Cisco. MQC based policing gives you more flexibility with the configuration and provides more functionality than CAR. Another reason why the latter method is better is because Cisco wouldn't be adding newer features to CAR.
There are many differences between the two methods but will highlight just one or two here. CAR only supports a single token bucket for normal/max burst whereas MQC based policing supports a separate token bucket for every class. Action for conforming/non-conforming traffic is limited to confirm/exceed with CAR whereas violate is an additional option supported with MQC based Policing configuration. There are some more differences between these two and most of them are in favor of MQC based policing.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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