From the URL:-
This is the modified IPPHONE-PC policy map, which includes the police command:
policy-map IPPHONE-PC
class CLASSIFY-OTHER
police 50000000 1562500 conform-action set-dscp-transmit default exceed-action drop
These are the police command parameters:
•The 50000000 parameter defines the committed information rate (CIR) for traffic allowed in this traffic class. This example configures the CIR to be 50 Mbps.
•The 1562500 parameter defines the CIR burst size for traffic in this traffic class; this example uses a default maximum burst size. Set the CIR burst size to the maximum TCP window size used on the network.
•The conform action keywords define what the policer does with CLASSIFY-OTHER packets transmitted when the traffic level is below the 50-Mbps rate. In this example, set-dscp-transmit default applies DSCP 0 to those packets.
•The exceed action defines what the policer does with CLASSIFY-OTHER packets transmitted when the traffic level is above the 50 Mbps CIR. In this example, exceed action drop drops those packets.
