<!ATTLIST trace:connect trace CDATA #REQUIRED>
<!ATTLIST trace:connect element CDATA #REQUIRED>
-<!ELEMENT AS (((AS|link)*,cluster*,ASroute*,bypassRoute*)|((host|router|link)*,cluster*,route*))>
+<!ELEMENT AS (((AS|link|cluster)*,ASroute*,bypassRoute*)|((host|router|link)*,route*))>
<!ATTLIST AS id CDATA #REQUIRED>
<!ATTLIST AS routing CDATA #REQUIRED>