What Catalyst operating system (CatOS) versions and supervisors are required to support policing?
A. The Supervisor Engine 1A supports ingress policing in CatOS version 5.3(1) and later, and in Cisco IOS Software Release 12.0(7)XE and later. Note: A Policy Feature Card (PFC) daughter card is required for policing with the Supervisor Engine 1A. The Supervisor Engine 2 supports ingress policing in CatOS version 6.1(1) and later, and in Cisco IOS Software Release 12.1(5c)EX and later. The Supervisor Engine 2 supports the excess rate policing parameter. The Supervisor 720 supports ingress policing at the port and VLAN interface level. Refer to the Policing Features Update for Supervisor Engine 720 section of QoS Policing on Catalyst 6500/6000 Series Switches for more information about the Sup720 policing features.