Cisco IOS 12.0 Switching Services

Standard and Extended Access Lists

Note

Router interfaces with input access lists cannot participate in MLS. However, any input access list can be translated to an output access list to provide the same effect on the interface. For complete details on how input and output access lists affect MLS, see Chapter 13, "Configuring Multilayer Switching."

MLS allows you to enforce access lists on every packet of the flow without compromising MLS performance. When you enable MLS, standard and extended access lists are handled at wire speed by the MLS-SE. Access lists configured on the MLS-RP take effect automatically on the MLS-SE. Additionally, route topology changes and the addition of access lists are reflected in the switching path of MLS. ...