How to calculate the TCAM space when QoS and ACL are applied to one interface

How to calculate the TCAM space, when QoS and ACL are applied to one interface.

When QoS and ACL are applied to one interface, the actual number of rules in TCAM is:

Ingress:

No. of QoS classifiers rules + No. of input ACL rules + (No. of QoS classifiers rules * No. of input ACL rules)

Egress:

No. of QoS rewrite rules + No. of output ACL rules + (No. of QoS rewrite rule * No. of output ACL rules)

For example:

Only the firewall filter is applied to an interface input:

Only QoS classifiers are applied to an interface:

Merged QoS and ACL on the same interface:

 

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