Configures, retrieves, and modifies Link Fault Signaling (LFS).
<interface xmlns="urn:brocade.com:mgmt:brocade-interface">
<ethernet>
<name>{req_val}</name>
<link-fault-signaling xmlns="urn:brocade.com:mgmt:brocade-lfs">
<tx/>
</link-fault-signaling>
</ethernet>
</interface>