Egress ACLs are supported on Summit X450-G2, X460-G2, X670-G2, X770, and ExtremeSwitching X440-G2 and X620 series switches. For these, egress ACL lookup happens at egress, and diffserv, dot1p and other non-ACL feature examination happen at ingress. Therefore, egress ACL happens at the last moment and has precedence.