Egress ACLs are supported on ExtremeSwitching X450-G2, X460-G2, X465, X670-G2, X440-G2, X590, X620, X690, X695, X870 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.