Start Level 1 Node: SAP NetWeaver Application Server: Web Server and Web ClientSAP NetWeaver Application Server: Web Server and Web ClientEnd Level 1 Node: SAP NetWeaver Application Server: Web Server and Web Client
   Start Level 2 Node: Server RoleServer RoleEnd Level 2 Node: Server Role
   Start Level 2 Node: Client RoleClient RoleEnd Level 2 Node: Client Role