Configures a MAC access group.
<interface-vlan xmlns="urn:brocade.com:mgmt:brocade-interface">
<vlan>
<name>{req_val}</name>
<mac xmlns="urn:brocade.com:mgmt:brocade-mac-access-list">
<access-group>
<mac-access-list>{req_val}</mac-access-list>
<mac-direction>{req_val}</mac-direction>
<traffic-type/>
</access-group>
</mac>
</vlan>
</interface-vlan>