Jürgen Schönwälder

Dr. Jürgen Schönwälder TU Braunschweig Department of Computer Science Mühlenpfordtstrae 23, 1. OG 38106 Braunschweig Germany Phone: +49-531-391-3285 Fax: +49-531-391-5936 E-mail: schoenw@ibr.cs.tu-bs.de WWW: http://www.ibr.cs.tu-bs.de/~schoenw/

Interests

Experience

Associate Professor at the the International University Bremen, Germany, (2003-)

• Teaching courses on
  • algorithms and data structures,
  • networks and protocol, and
  • distributed systems

Visiting Professor (Vertretungsprofessur, C3) at the University of Osnabrück, Germany, (2001-2003)

• Teaching courses on
  • software engineering and graphical user interfaces,
  • operating systems,
  • security of networked systems,
  • computer networks, and
  • distributed algorithms.

Assistant Professor (Wiss. Assistent, C1) at the Technical University of Braunschweig, Germany (1997-2001)

• Teaching courses on
  • network management,
  • fault-tolerance and an introductionary course on
  • operating systems and computer networks.
• Research on new Internet management technologies.
• Co-Editor of the Distributed Management and the Next Generation Structure of Management Information working groups.
• Chair of the Network Management Research Group.

Exchange Visitor at Bell Labs Research, USA (Summer 1997)

• Work on fault-tolerance and fault-management aspects of CORBA environments.

Lecturer at the Technical University of Braunschweig, Germany (Spring 1997)

• Conceptualized and taught an introductionary course on operating systems and computer networks.

Post-Doc Researcher at the University of Twente, The Netherlands (1996-1997)

• Active IETF working group member and co-editor for the Application MIB working group and the Distributed Management working group.
• Evolution and maintenance of the scotty network management extension for the Tool Command Language (Tcl), which is used on thousands of sites world-wide to manage networks and to develop network management tools.

Research Assistant (Wiss. Mitarbeiter) at the Technical University of Braunschweig, Germany (1990 to 1996)

• Developed a prototype for a fully distributed management system, based on the management by delegation paradigm. Presented results on several international conferences and workshops and got a Ph.D. title.
• Created the scotty network management package.
• Contributed to courses on Authentication Protocols (seminar, 1993), Performance Analysis (exercises 1990-1995), Microsystems (practical course) and Software Engineering (practical course).
• Conceptualized a practical course on distributed systems where students implemented a distributed file system based on the NFS protocol.
• Contributions to an introductionary book on Performance Analysis of Computer Systems.

Related Activities and Jobs

• Taught a one-day tutorial on SNMP-based Management at Nokia (Helsinki), September 1999.
• Taught a half-day tutorial on emerging Internet management technologies at the Symposium on Integrated Management in Boston, May 1999.
• Taught a two-day tutorial on SNMP for companies in the Netherlands in 1997.
• Taught a one-day tutorial on Tcl/Tk for the German Unix User Group (GUUG) in 1995.
• Taught a programming course at the Fachhochschule Wolfenbüttel (1993 to 1995).
• Created and taught a course on the UNIX operating system (1991).
• Integrated a new scheduler into the NIROS operating system for Nixdorf Computing Systems (1988).
• Assisted in teaching graduate and undergraduate courses at the TU Braunschweig (1986 to 1990).
• Member of IEEE, USENIX, SAGE and GI.

Education

Ph.D. in Computer Science (Dr. rer. nat.) from the Technical University of Braunschweig, Germany (1990 to 1996)

• Ph.D. thesis: Network management with programmable, cooperating agents. Graduated in March, 1996.
• Research and development in the area of network management and security.

Computer Science Diploma (Dipl.-Inform.) from the Technical University of Braunschweig, Germany (1984 to 1990)

• Diploma thesis: An object-oriented model for troubleshooting sewage plant components and its Implementation in Smalltalk-80. Grade: 1,0 (passed with distinction) in March, 1990.
• Courses: Operating Systems, Computer Networks, Knowledge Representation, Databases, Performance Analysis, Theoretical Computer Science.

School (1970 to 1984)

• Gymnasium Ernestinum, Rinteln, Germany (1974 to 1983).
• Hauptschule Silixen, Extertal, Germany (1973 to 1974).
• Elementary school Almena, Extertal, Germany (1971 to 1973).
• Elementary school IV, Lemgo-Brake, Germany (1969 to 1971).

Special Skills

• Computer Languages: C, C++, Pascal, Java, Tcl/Tk, HTML, XML, Assembler, Prolog, Smalltalk, AWK, UNIX Shells.
• Natural Languages: German and English.
• Operating Systems: UNIX (system administrator and programmer), MS-DOS, Windows '95, Windows NT.
• Detailed knowledge of network management protocols, especially SNMP.
• Knowledge in the area of distributed systems (RPCs, distributed file systems, distributed operating systems, CORBA).
• Knowledge in the area of performance analysis (queuing models, simulations, monitoring and measurement methods).
• Experience with software projects (integration of a new scheduling algorithm into a production operating system, development and maintenance of the Scotty packages (~ 70.000 lines of code), several contributions to other open source projects (libsmi, tcpdump, CMU Linux SNMP agent).

Professional Activities

• Program Co-Chair IM 2003
• Program committees: NOMS 2004, DSOM 2003, IPOM 2002 IC 2002 DSOM 2002, NOMS 2002, DSOM 2001, IM 2001, IPOM 2000, DSOM 2000, NOMS 2000, DSOM '99, IM '99, and DSOM '98
• Reviewer for IEEE Transactions on Knowledge and Data Engineering, Elsevier Computer Networks, Journal on Network and Systems Management, IBM Systems Journal
• Chair of the Network Management Research Group within the IRTF.
• Guest Editor of a Feature Issue of the IEEE Communications Magazine.
• Guest Editor of a Special Issue of the IEEE Journal of Selected Areas in Communications.
• Co-Editor of the SimpleTimes.
• Active member of various IETF and IRTF working groups.
• Member of the IETF MIB Doctors.

Publications

Books

1. G. Goldszmidt, J. Schönwälder: Integrated Network Management VIII. Kluwer Academic Publishers, March 2003. ISBN 1-4020-7418-2
2. J. Schönwälder: Netzwerkmanagement mit programmierbaren, kooperierenden Agenten. Dissertation, Shaker-Verlag, 1996. ISBN 3-8265-1511-0 (in german)

Journal Articles

1. J. Schönwälder, J. Quittek: Secure Internet Management By Delegation. Computer Networks, 35(1), January 2001.
2. J. Schönwälder, J. Quittek, C. Kappler: Building Distributed Management Applications with the IETF Script MIB. IEEE Journal on Selected Areas in Communications, 18(5), May 2000.
3. J. Schönwälder: Network Management by Delegation - From Research Prototypes Towards Standards. Computer Networks and ISDN Systems 29(15), November 1997.
4. J. Schönwälder: Zur aktuellen Entwicklung von SNMPv2. Praxis der Informationsverarbeitung und Kommunikation, 18(4), 1995. (in german)
5. A. Kehne, J. Schönwälder, H. Langendörfer: A Nonce-Based Protocol for Multiple Authentications. Operating System Review, 26(4), October 1992.

Conference Papers

1. J. Schönwälder: Evolution of Open Source SNMP Tools. 3rd System Administration and Networking Conference (SANE 2002), May 2002.
2. P. Martinez, M. Brunner, J. Quittek, F. Strauß, J. Schönwälder, S. Mertens, T. Klie: Using the Script MIB for Policy-based Configuration Management. IEEE/IFIP Network Operations and Management Symposium, April 2002.
3. J. Schönwälder: Specific Simple Network Management Tools. 15th Usenix Systems Administration Conference (LISA 2001), San Diego, December 2001.
4. J. Schönwälder, A. Müller: Reverse Engineering Internet MIBs. 7th IFIP/IEEE International Symposium on Integrated Network Management, Seattle, May 2001.
5. F. Strauß, J. Schönwälder, J. Quittek: Open Source Components for Distributed Internet Management. 7th IFIP/IEEE International Symposium on Integrated Network Management, Seattle, May 2001.
6. F. Strauß, J. Schönwälder, S. Mertens: JAX - A Java AgentX Subagent Toolkit. 1st IEEE Workshop on IP-oriented Operations & Management, Cracow, September 2000.
7. J. Schönwälder: Married with Tcl. 1st European Tcl/Tk User Meeting, TU Hamburg-Harburg, June 2000
8. J. Schönwälder, F. Strauß: Next Generation Structure of Management Information for the Internet 10th IFIP/IEEE International Workshop on Distributed Systems: Operations & Management, Zürich, October 1999.
9. J. Schönwälder, J. Quittek: Secure Management By Delegation within the Internet Management Framework. 6th IFIP/IEEE International Symposium on Integrated Network Management, Boston, May 1999.
10. J. Schönwälder: Internet Management Standards - Quo Vadis? 13. GI-Fachtagung "Management verteilter IV-Systeme", Seeheim-Jugenheim, April 1999. (in german)
11. M.R. Lyu, J. Schönwälder: WEB-CASRE: A Web-Based Tool for Software Reliability Modeling. 9th International Symposium on Software Reliability Engineering, Paderborn, November 1998.
12. M.R. Lyu, J. Schönwälder: Bringing Software Tools to the Web - Architecture Issues and Porting Experience. International Symposium on Internet Technology '98, Taipei, April 1998.
13. J. Schönwälder, S. Garg, Y. Huang, A.P.A van Moorsel, S. Yajnik: A Management Interface for Distributed Fault Tolerance CORBA Services. 3rd IEEE Workshop on Systems Management, Rhode Island, April 1998.
14. J. Schönwälder, M. Toet: Management of the World Wide Web. Workshop on Distributed Systems: Operations and Management, Sydney, October 1997.
15. J. Schönwälder: Network Management by Delegation - From Research Prototypes Towards Standards. 8th Joint European Networking Conference (JENC8), Edinburgh, May 1997.
16. J. Schönwälder: Using Multicast-SNMP to Coordinate Distributed Management Agents. 2nd IEEE Workshop on Systems Management, Toronto, June 1996.
17. J. Schönwälder, H. Langendörfer: Einbindung applikations-spezifischer Agenten in das SNMP Management. EMVA '95, Dortmund, October 1995. (in german)
18. J. Schönwälder, H. Langendörfer: Tcl Extensions for Network Management Applications. 3rd Tcl/Tk Workshop, pp. 279-288, Toronto, July 1995
19. J. Schönwälder, H. Langendörfer: Eine Netzwerkmanagement Plattform basierend auf der Tool Command Language (Tcl). GUUG Frühjahrsfachgespräche, Köln, March 1995. (in german)
20. J. Schönwälder, S. Petri, H. Langendörfer: Frei erhältliche Software für UNIX Administratoren. GUUG Jahrestagung, pp. 322-329, Wiesbaden, September 1994. (in german)
21. J. Schönwälder, H. Langendörfer: How To Keep Track of Your Network Configuration. LISA VII, Monterey (California), November 1993.
22. J. Schönwälder, H. Langendörfer: INED - An Application Independent Network Editor. SANS II, Arlington (Virginia), April 1993.
23. J. Schönwälder, H. Langendörfer: Administration of large distributed UNIX LANs with BONES. SANS II, Arlington (Virginia), April 1993.
24. A. Kehne, J. Schönwälder, H. Langendörfer: Multiple Authentications with a Nonce-Based Protocol Using Generalized Timestamps. ICCC '92, Genua, September 1992.
25. J. Schönwälder, M. Hofmann, H. Langendörfer: The Object-oriented Tool MOTES-DM and its Use for Diagnosis of Sewage Plant Failures. TOOLS '91, Paris, March 1991.
26. J. Schönwälder, M. Hofmann, H. Langendörfer: Fault Diagnosis of a Sewage Plant. 7th IEEE Conference on Artificial Intelligence Applications, Miami, IEEE Computer Society Press, February 1991.
27. H. Langendörfer, J. Schönwälder, M. Hofmann: Objektorientierte Modellierung in einem BMFT-Umweltprojekt: Wissensbasierte Fehlerdiagnose von Kläranlagen. 5. Symposium Informatik im Umweltschutz, Informatik Fachberichte 256, Seite 197-206, Wien, September 1990. (in german)

Internet Standards and Related Documents

1. J. Schönwälder: Overview of the 2002 IAB Network Management Workshop. RFC 3545, May 2003.
2. A. Pras, J. Schönwälder: On the Difference between Information Models and Data Models. RFC 3444, January 2003.
3. J. Schönwälder: Simple Network Management Protocol (SNMP) over Transmission Control Protocol (TCP) Transport Mapping. RFC 3430, November 2002.
4. M. Daniele, J. Schönwälder: Textual Conventions for Transport Addresses. RFC 3419, November 2002.
5. M. Daniele, B. Haberman, S. Routhier, J. Schönwälder: Textual Conventions for Internet Network Addresses. RFC 3291, May 2002.
6. D. Levi, J. Schönwälder: Definitions of Managed Objects for Scheduling Management Operations. RFC 3231, January 2002.
7. C. Elliot, D. Harrington, J. Jason, J. Schönwälder, F. Strauß: SMIng Objectives. RFC 3216, December 2001.
8. J. Schönwälder, J. Quittek: Script MIB Extensibility Protocol Version 1.1. RFC 3179, October 2001.
9. D. Levi, J. Schönwälder: Definitions of Managed Objects for the Delegation of Management Scripts. RFC 3165, August 2001.
10. D. Raz, J. Schönwälder, B. Sugla: An SNMP Application Level Gateway for Payload Address Translation. RFC 2962, October, 2000.
11. M. Daniele, B. Haberman, S. Routhier, J. Schönwälder: Textual Conventions for Internet Network Addresses. RFC 2851, June 2000.
12. H. Hazewinkel, C. Kalbfleisch, J. Schönwälder: Definitions of Managed Objects for WWW Services. RFC 2594, May 1999.
13. D. Levi, J. Schönwälder: Definitions of Managed Objects for Scheduling Management Operations. RFC 2591, May 1999.
14. D. Levi, J. Schönwälder: Definitions of Managed Objects for the Delegation of Management Scripts. RFC 2592, May 1999.
15. J. Schönwälder, J. Quittek: Script MIB Extensibility Protocol Version 1.0. RFC 2593, May 1999.
16. K. McCloghrie, D. Perkins, J. Schönwälder, J. Case, M. Rose, S. Waldbusser: Structure of Management Information Version 2 (SMIv2). RFC 2578, STD 58, April 1999.
17. K. McCloghrie, D. Perkins, J. Schönwälder, J. Case, M. Rose, S. Waldbusser: Textual Conventions for SMIv2. RFC 2579, STD 58, April 1999.
18. K. McCloghrie, D. Perkins, J. Schönwälder, J. Case, M. Rose, S. Waldbusser: Conformance Statements for SMIv2. RFC 2580, STD 58, April 1999.

Other Publications

1. R. Boutaba, G. Goldszmidt, J. Schönwälder, D. Zuckerman: Managing It All - A Report on IM 2003., Journal of Network and Systems Management, 10(2), June 2003.
2. J. Saperia, J. Schönwälder: Policy-Based Enhancements to the SNMP Framework. Computer Science Report 00-02, TU Braunschweig, Mai 2000.
3. J. Schönwälder, M. Bolz, S. Mertens, J. Quittek, A. Kind, J. Nicklisch: SMX - Script MIB Extensibility Protocol Version 1.0. Computer Science Report 98-07, TU Braunschweig, October 1998.
4. J. Schönwälder, H. Langendörfer: Netzwerkmanagement - Beschreibung des Exponats auf der CeBIT '94. Computer Science Report 94-02, TU Braunschweig, March 1994. (in german)

Presentations (1996 to present)

• Web Services for Internet Management: Yet Another Hype?
  Panel Position Statement, 8th IFIP/IEEE International Symposium on Integrated Network Management, Colorado Springs, 25. March 2003.
• Generic vs. Specific Simple Network Management Tools
  3rd System Administration and Networking Conference (SANE 2002), Maastricht, 30. May 2002.
• SMIng NMRG Proposal Status Report
  SMIng WG, 52nd IETF, Salt Lake City, 13. December 2001.
• Specific Simple Network Management Tools
  15th Usenix Systems Administration Conference (LISA 2001), San Diego, 6. December 2001.
• Specific Simple Network Management Tools
  University of Osnabrück, 21. November 2001.
• Can <WBEM/> Replace SNMP?
  Panel Position Statement, 7th IFIP/IEEE International Symposium on Integrated Network Management, Seattle, 16. May 2001.
• Reverse Engineering Internet MIBs
  7th IFIP/IEEE International Symposium on Integrated Network Management, Seattle, 16. May 2001.
• SMIng - The Next Generation SMI
  SMIng BOF, 7th IFIP/IEEE International Symposium on Integrated Network Management, Seattle, 15. May 2001.
• SMIng Mapping to DIAMETER
  AAA WG, 50th IETF, Minneapolis, 19. March 2001.
• SMIng Overview
  SMIng WG, 49th IETF, San Diego, 13. December 2000.
• SMIng Mapping to DIAMETER
  AAA WG, 49th IETF, San Diego, 13. December 2000.
• New Internet Management Technologies.
  Tutorial at the IEEE Workshop on IP-oriented Operations & Management, Cracow, September 2000.
• NMRG Report: Improving/Enhancing SNMP and SMI
  Open Plenary, 48th IETF, Pittsburgh, 2. August 2000.
• SMIng Project and Related Work
  NIM BOF, 48th IETF, Pittsburgh, 2. August 2000.
• Revision of RFC 2591 amd RFC 2592
  DISMAN WG, 48th IETF, Pittsburgh, 31. July 2000.
• Bulk MIB Data Transfer Solution Space
  SNMPv3 WG, 48th IETF, Pittsburgh, 31. July 2000.
• Extending SNMP to Support Bulk MIB Data Transfers
  SNMPv3 WG, 48th IETF, Pittsburgh, 31. July 2000.
• Married with Tcl
  1st European Tcl/Tk User Meeting, Hamburg, 15. June 2000.
• Internet Management Standards - What is needed in the future?
  University of Surrey, Guildford, 31. May 2000.
• IPv6 Now!
  2. Braunschweiger Linuxtage, Braunschweig, 14. May 2000.
• Internet Standards zum Policy-based Network Management
  IIR Conference on Policy-based Networks, Frankfurt, 19. January 2000.
• Are Programmable Networks Unmanageable?
  Panel Position Statement, 10th IFIP/IEEE International Workshop on Distributed Systems: Operations & Management, Zürich, 12. October 1999.
• Emerging Internet Management Standards.
  Tutorial at the 6th IFIP/IEEE International Symposium on Integrated Network Management, Boston, May 1999.
• Internet Management Standards - Quo Vadis?
  13. GI-Fachtagung "Management verteilter IV-Systeme", Seeheim-Jugenheim, 15. April 1999.
• Verteiltes Internet Management
  Medical University of Lübeck, 26. November 1998.
• Java Script MIB Implementation
  DISMAN WG, 42th IETF, Chicago, 27. August 1998.
• DISMAN Security Issues
  DISMAN WG, 40th IETF, Washington, 10. December 1997.
• Towards secure and distributed management in the Internet
  Technical University of Darmstadt, 1. December 1997.
• Management of the World Wide Web
  Workshop on Distributed Systems, Operations and Management, Sydney, 21. October 1997.
• SNMP Version 3 - (Another attempt to finish work on secure SNMP)
  Lucent Technologies, Bell Laboratories, Murray Hill, 19. September 1997.
• Distributed Network Management - How does scripting affect management architectures?
  Lucent Technologies, Bell Laboratories, Murray Hill, 1. July 1997.
• Distributed Network Management by Delegation - How does scripting affect management architectures?
  Telecommunications Services Group, EPFL, Lausanne, 17. June 1997.
• Network Management by Delegation - From Research Prototypes Towards Standards.
  8th Joint European Networking Conference (JENC8), Edinburgh, 15. May 1997.
• Script MIB - Implementation Status and Security Issues.
  DISMAN WG, 38th IETF, Memphis, 8. April 1997.
• Internet Management - Tools & Trends
  25. DFN Betriebstagung, Berlin, 16. October 1996.
• Experiences with the Script MIB.
  DISMAN WG, 36th IETF, Montreal, 25. June 1996.
• Using Multicast-SNMP to Coordinate Distributed Management Agents.
  DISMAN WG, 36th IETF, Montreal, 25. June 1996.
• Using Multicast-SNMP to Coordinate Distributed Management Agents.
  IEEE Workshop on Systems Management, Toronto, 20. June 1996.
• USEC and Scotty - Implementation details and first experiences.
  USEC BOF at Networld/Interop '96, Las Vegas, 2. April 1996.
• Simple Network Management Protocol (SNMP): Past, Present, Future?
  GUUG Frühjahrsfachgespräche, Köln, 29. February 1996