Advanced Services in Converged Networks - Are they Really Manageable?

The explosive growth of Internet and telecommunication services, fast proliferation of advanced network devices and integration of different technologies and applications in a rather complex network have created a unique challenge for the network management community. New ways of strategic thinking must be incorporated in future management products and services to ensure a smooth transition towards the future networked society. Enormous change in the telecommunications industry is being driven by the convergence of the traditional Public Switched Telephone Network (PSTN) with the Internet. With this change, we are also seeing the convergence of data services with voice and perhaps ultimately with video and other rich services. Not surprisingly, increased complexity is attendant to these changes, and this complexity implies new and daunting challenges for the management and operations community. Will the network management and Operational Support Systems (OSS) be able to keep pace as the next generation services are rolled out? What are the long-term prospects for comprehensive management of these functionally expansive telecommunication systems? What might the consequences be if management and operational systems were to remain fragmented and isolated? How great is the risk if the converged networks end up in a brittle network, due to limitations of their management systems? What needs be done to keep the Converged Network manageable? Are the management issues getting the needed attention? These are some key questions that will be addressed.

  • Many networks today are constructed from some combination of DWDM, SONET, ATM, and IP. Peering across the layers is already difficult. Will integration of voice and advanced services exacerbate this problem?
  • Traditional PSTN voice and Voice over IP (VoIP) will not only coexist they will likely need to interoperate extensively! This will potentially introduce not only complexity, but also significant scaling issues.
  • SNMP-based management in the Internet world has succeeded brilliantly at the Element Management Level (EML), and on the Fault and Performance aspects of FCAPS. How readily can existing Internet management methodologies be extended, or new methodologies be developed, to support a broader range of management functions? How quickly will tools emerge to manage comprehensively at the Network Management Level (NML) or Service Management Level (SML)?
  • There has been much interest in recent years in policy-based management of Internet functions, essentially as a means of moving the provisioning of DiffServ, MPLS and IPSEC services to the NML or possibly the SML. What are the prospects for these efforts in terms of standardization, implementation and deployment?
  • What new functions might be needed at the Business Management Level (BML)?


Shri K. Goyal, Director, Technical Programs, GTE LABS, USA

Dr. Shri K. Goyal is Director, Technology Program in Operations Systems Technologies of Verizon Laboratories in Waltham, Massachusettes. He has been with GTE (now Verizon) for over twenty-five years in various technical leadership and management capacities. He has initiated many successful programs in wireline/wireless, Service and Network Management. His main contributions have been in defining and managing strategic programs for Intelligent Operations Support (OSS) systems development. Many of the Systems devloped are currently in use in GRE.

Dr. Goyal has a Ph.D. in Electricial Engineering from North Carolina State University in Raleigh. He has published extensively. He serves on the advisory board for IM and NOMS and was Technical Program Chair for NOMS '94 and General Co-Chair for NOMS '96. He was CNOM Chair 1996-1998 and the Chair of Enterprise Networking committee 1998-2000. He holds a U.S. patent and two patents in India. He is a member of AAAI and an IEEE Fellow.


Scott Marcus, Chief Technology Officer (CTO), Genuity Inc., USA

Mr. Marcus is the Chief Technology Officer for Genuity Inc. (formerly GTE Internetworking). Genuity offers a full spectrum of data and voice/data communication services, and is one of the largest Internet backbones and web hosting providers in the world.

Mr. Marcus specializes in the technologies and economics of internetworking transmission systems. When GTE acquired the former BBN Corp., he led the engineering design teams that created the initial design for Genuitys wide area data network. This network supports SONET/DWDM, TDM, ATM, Frame Relay, Internet and voice/VoIP services. He has contributed to the architecture and design of large internetworking systems for commercial service providers, carriers, corporate customers, and the U.S. government, as well as Genuitys Internet services network and the dial-up network that Genuity provides for America OnLine.

Mr. Marcus has served in a wide variety of roles at Genuity and its predecessor organizations, including systems architecture and engineering, capacity planning, legal and regulatory advocacy, sales, business development, consulting, and product architecture and design. He frequently speaks at conferences and symposia, is a member of the Board of Trustees of the American Registry of Internet Numbers (ARIN), and is Vice Chair of the Committee on Network Operation and Management (CNOM) of the Institute of Electrical and Electronics Engineers (IEEE).

Prior to joining Genuity in March, 1990, Mr. Marcus managed communications software development teams for Nixdorf Computer in Santa Clara, California, and in Munich, Germany. From 1980 to 1985, he was a technical founder and the Director of Software Development for Spartacus Computers, a firm that developed the first commercial TCP/IP/Ethernet solution for IBM mainframe computers.

Mr. Marcus received his M.A. at Columbia University School of Engineering, 1980 and his B.A. in Political Science at City College of New York (CUNY), 1972.


Zbigniew Opalka, VP and CTO, Axiowave Networks, USA

Mr. Opalka has more than 20 years of experience in the architecture, design and development of state-of-the-art networking equipment and embedded systems and has several patents in these areas.

Prior to Axiowave, he was a founding member and Senior Vice President of Engineering of Nexabit Networks (acquired by Lucent Technologies in July 1999). He subsequently served as Vice President of IP products at Lucent. Nexabit Networks focused on the development of Terabit routers.

Prior to Nexabit, Mr. Opalka was the VP of Engineering at Agile Networks. This was a startup whose business focus was networking based on automated VLAN and ATM/Ethernet technology. He was responsible for architecting and developing the ATM routing software based on the OSPF (Open Shortest Path First) protocol that was responsible for automatically creating VLANs based on automatic detection of IP network addresses. Agile was acquired by Lucent in the fall of 1997.

Before Agile Networks, Mr. Opalka spent many years at BBN Communications, the "birthplace" of the Internet. He was responsible for software development for Routers making up the backbone of the DARPA-sponsored Internet. This was one of the earliest router networks ever deployed. During this time he also managed the development of TACACS, a distributed network access control system on the ARPANET.He has also held various technical positions at General Electric, MITRE and Fibronics.

He holds a bachelor's and master's degree in Mathematics from Syracuse University.

Tony Confrey, Director, Sonus Networks, USA

Tony Confrey is Director of Management Software Development at Sonus Networks, a leading provider of voice infrastructure solutions for the new public network. In this role he and his team are working with internal architects and early adopter customers to define and develop the tools required to manage converged IP-PSTN networks and services.

Prior to Sonus, Tony spent eight years performing research and development in the areas of advanced network management and operational support systems at GTE Labs. As leader of the Network and Service Management department he developed and deployed numerous large systems into production both nationally and internationally. These include the state of the art web-based system that manages GTEs wireless and wireline networks, GTEs open market transition gateway, a secure CORBA customer management gateway and a broadband integrated element management system.

Tony has also worked on intelligent systems for manufacturing automation at IntelliCorp and expert systems in the financial area at DECs European Research Center. He has a MS in Computer Science from Stanford University and a BSc in Engineering from Trinity College, Dublin.

Richard Lau, Executive Director and Chief Scientist, Global Service Management Research, Telcordia Technologies, USA

Dr. Richard Lau is Executive Director and Chief Scientist of Global Service Management department in Applied Research of Telcordia Technologies. His current research areas include the following:

  • Service Level Agreement for Next Generation Networks
  • Quality of service, policy, and congestion control for voice over IP
  • Planning of VPN and MPLS networks
  • Operation Support Systems for 3G/GPRS and IP wireless/mobility networks
  • Monitoring and anomaly analysis for IP networks
  • ADSL loop qualification and assurance
  • Advanced service creation

Dr. Lau received the B.S., M.S., and Ph.D. degrees in electrical engineering from the University of Pennsylvania, in 1983, 1984, and 1987, respectively.

In 1985, he joined the Network Transport Requirement division of Bellcore as a member of technical staff and worked on network architectures and system issues of SONET and ATM. Since 1989, he has been with the Video Systems Signal Processing Research department, working on HDTV, ATM, and cable modem networks. In 1993, he became a director and led a group performing research on broadband access networks and operations. In 1999, he became chief scientist specializing in technology and strategic direction for next generation IP and wireless networks. Recent, he became executive director of a department focusing on global service management.

Dr. Lau is a senior member of the IEEE; he holds 3 US patents related to high-speed networking and has 3 patents pending in the area of IP VPN. He received the New Jersey Inventors of the year award in 1997 for his pioneering work on SONET self-healing ring networks. In 1998 he received the Telcordia individual CEO award for his long-term contribution to broadband technologies.

Dr. Jeff Case, Founder and Chief Technical Officer, SNMP Research, Inc., USA

Dr. Jeffrey D. Case is the Founder and Chief Technical Officer at SNMP Research, Inc. He leads SNMP Research's development of network system, and application management products based on the Simple Network Management Protocol, related standards, and Web technologies. In the 20th anniversary issue of Data Com-munications magazine, Case was named as one of the twenty most influential people in networking. He is the author or coauthor of many standards for Internet management, including SNMP version 1, SNMP version 2, SNMP version 3, and related specifications.

Case formerly served as a computer center adminstrator and Martin Marietta Professor of Computer Science at the University of Tennessee in Knoxville, and previously was a computer center administrator and Associate Professor of Electrical Engineering Technology at Purdue University in Indiana.

Case continues to serve as Adjunct Professor of Computer Science at the University of Tennessee. Dr. Case received the Ph.D. degree from the University of Illinois.

Dr. Salah, Aidarous Director, NEC, USA

Salah Aidarous received his Ph.D. degree in Electrical Engineering from Louvain University, Belgium,in 1976. From 1976 to 1985, he held several academic positions teaching and doing research in expert systems, digital mobile radio, and CATV. He has published over 100 papers. In 1985, he joined Nortel working on introduction of new technologies in transport and switching networks, standards for interoperability, and network management. In 1997, he joined NEC where he is the director of product planning working on managemant of 3G wireless and IP-based networks.

Salah is Senior Editor of Network Magazine, ComSoc Editor for Internet Computing Magazine, and member of the JSAC Editorial Advisory Board. He is co-editor/author of "Network Management Into the 21st Century", "Telecommunications Network Management: Technology and Implementation", and co-editor of the IEEE Press Series on Network Management. He chairs the Technical Committee on Network Operations and Management (CNOM), and is a ComSoc Distinguished Lecturer.