Layer 2 Access Control Lists
An Ethernet services access control lists (ACLs) consist of one or more access control entries (ACE) that collectively define the Layer 2 network traffic profile. This profile can then be referenced by Cisco IOS XR software features. Each Ethernet services ACL includes an action element (permit or deny) based on criteria such as source and destination address, Class of Service (CoS), ether-type, or 802.1ad DEI.
Layer 2 ACLs are supported on ingress traffic only. Layer 2 ACLs are not supported on egress traffic.
Layer 2 access control lists are also known as Ethernet services control access lists.