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What is the difference in QoS functionality between the Policy Feature Card 1 (PFC1) and PFC2?

April 26, 2017card difference feature functionality pfc2 policy QoS

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What is the difference in QoS functionality between the Policy Feature Card 1 (PFC1) and PFC2?

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A. PFC2 lets you push down the QoS policy to a Distributed Forwarding Card (DFC). PFC2 also adds support for an excess rate, which indicates a second policing level at which policy actions can be taken. Refer to the Hardware Support for QoS in the Catalyst 6000 Family section of Understanding Quality of Service on Catalyst 6000 Family Switches for more information.