Assignment of an ACL name to an interface

In this case, if you subsequently create an ACL with that name, the switch automatically applies each ACE as soon as you enter it in the running-config file. Similarly, if you modify an existing ACE in an ACL you already applied to an interface, the switch automatically implements the new ACE as soon as you enter it. The switch allows up to 2048 ACLs each for IPv4 and IPv6. For example, if you configure two ACLs, but assign only one of them to a VLAN, the ACL total is two, for the two unique ACL names. If you then assign the name of an empty ACL to a VLAN, the new ACL total is three, because the switch now has three unique ACL names in its configuration.

(RADIUS-based ACL resources are drawn from the IPv4 allocation).