-<!-- start added by DAVID -->
-
-<!ELEMENT AS (((AS|link)*,ASroute*)|((host|router|link)*,route*))>
-<!ATTLIST AS id CDATA #REQUIRED>
-<!ATTLIST AS routing CDATA #REQUIRED>
-
-<!--<!ELEMENT route (link:ctn*)>
-<!ATTLIST route src CDATA #REQUIRED>
-<!ATTLIST route dst CDATA #REQUIRED>-->
-
-<!ELEMENT ASroute (link:ctn*)>
-<!ATTLIST ASroute src CDATA #REQUIRED>
-<!ATTLIST ASroute dst CDATA #REQUIRED>
-<!ATTLIST ASroute gw_src CDATA #REQUIRED>
-<!ATTLIST ASroute gw_dst CDATA #REQUIRED>
-
-
-<!--<!ELEMENT AS ((AS|host|gateway|router|link|route)*)>
-<!ATTLIST AS id CDATA #REQUIRED>
-<!ATTLIST AS routing CDATA #REQUIRED>
-
-<!ELEMENT gateway EMPTY>
-<!ATTLIST gateway id CDATA #REQUIRED>-->
-
-<!--
-
-<!ELEMENT AS ((AS|hostDef|routerDef|ASroute)*)>
-<!ATTLIST AS id CDATA #REQUIRED>
-
-<!ELEMENT hostDef (hostAdd*)>
-
-<!ELEMENT hostAdd EMPTY>
-<!ATTLIST hostAdd id CDATA #REQUIRED>
-
-<!ELEMENT routerDef (routerAdd*)>
-
-<!ELEMENT routerAdd EMPTY>
-<!ATTLIST routerAdd id CDATA #REQUIRED>