Where are each of the QoS processes performed in the Catalyst 6000?
A. Input Scheduling—Done by PINNACLE/COIL port application-specific integrated circuits (ASICs). Layer 2 only, with or without a Policy Feature Card (PFC). Classification—Done by Supervisor or by PFC via the access control list (ACL) engine. Layer 2 only, without a PFC; Layer 2 or Layer 3 with a PFC. Policing—Done by PFC via the Layer 3 forwarding engine. Layer 2 or Layer 3 with a PFC (required). Packet Re-write—Done by PINNACLE/COIL port ASICs. Layer 2 or Layer 3 based on classification done previously. Output Scheduling—Done by PINNACLE/COIL port ASICs. Layer 2 or Layer 3 based on classification done previously.
