Figure: Example of the scaling limits for PCC rules depicts an example relevant to capacity planning with focusing on understanding the scaling limits pertaining to the number of PCC rules and their mutual combinations when they are applied to the subscriber hosts.
This example is focuses on an IPv4 filter applied in ingress direction but similar logic can be used in understanding other policy types (QoS, egress, IPv6).
The system/line card limits in this example are set to the following values for illustration purposes only:
Number of PCC rules per system is 1K.
Max number of rules per subscriber host is 64.
Max number of combinations of the PCC rules (or services) that are active (applied to the subscriber-hosts) per system is 4K.
Max ingress IPv4 filter CAM entries per FP2/FP3 is 64k.
Max filters per system is 16k.
