Special SymposiaCome back beginning in June for information on the 2014 Conference, meanwhile enjoy a retrospective look at the 2013 Conference.
Enabling the Cloud
Organizers: George Clapp, AT&T Research Labs, USA; Douglas Freimuth, IBM, USA
Cloud computing has emerged as a new paradigm that provides on-demand, efficient, secure, reliable and cost-effective computing and storage services. Technology is playing an increasingly prominent role as cloud providers offer more complete and robust services and as more enterprises enter the market. Networks among data centers and between clients and data centers are essential resources – just as essential as computers and storage devices – and the industry is adapting their networks to meet the particular challenges of cloud computing. This special symposium will provide in depth discussions of how networks can enable the cloud, focusing on new network technologies both within data centers and between data centers. The symposium consists of two technical sessions, one on data center networks and a second on network virtualization.
I. Data Center Networks
Monday, 18 March
The widespread adoption of cloud computing is placing new and difficult requirements on data center networks. Server virtualization has made workloads much more dynamic as Virtual Machines (VMs) can be added or deleted or moved from one server to another. Network state is no longer associated with the server but now resides in the VMs, and the network state can change as VMs migrate among servers. Issues of scale arise as the number of VMs within a data center grows to two or three orders of magnitude larger than the number of servers, and network security is a paramount concern as multiple – potentially competing – enterprises are served within a single data center. This session will discuss how industry participants are responding to these challenges by developing innovative network technologies and applying new approaches such as Software Defined Networks. Topics discussed will include:
• Alternative data center network technologies for cloud computing
• Standards initiatives
• New requirements for optical networking equipment and components
• Interaction of data center networks and wide area networks
• Management of data center networks
The Coming Decade of System Networking Discontinuities, Renato Recio; IBM, USA
Renato Recio works on System I/O and Network Architecture, Strategy, and Standards. For the past 15 years, he has played a leadership role in the strategy, architecture and design of future IBM system IO and Networks. He is currently responsible for IBM's System Networking product strategy, which includes the physical fabric, network virtualization and Software Defined Networking stack.
He has been a founding engineer and author of several IO and Network industry standards. He also has filed over 200 patents, of which over 100 have already issued. He has published dozens of refereed technical conference (e.g. IEEE and ACM) papers. He created and chairs the IEEE Data Center Converged And Virtual Ethernet Switching (DC CAVES) workshops (see www.i-teletraffic.org/itc22/workshops/dc-caves-workshop/).
The traditional Data Center Networking (DCN) model is under a transitory period, where several emerging technologies may cause significant discontinuities and result in a new dominant model. Clients are seeking: optimized fabrics that are flat and converged, simpler network control and management, automated network virtualization services and a platform for which to run agile network services. This presentation will cover the client requirements that are influencing the demand side of these new solutions, as well as some of the emerging technologies
The Programmable Cloud; John Manville, Cisco, USA
John Manville is Senior Vice President of Cisco IT Global Infrastructure Services. In this role, Manville leads the strategy and operations for Cisco networks, data centers, middleware, and databases. These systems provide the technology infrastructure services for Cisco’s global workforce of more than 65,000 people. His primary focus is on addressing critical business requirements while maintaining a balance of operational excellence and innovation. Among other achievements, Manville successfully led the transformation of Cisco’s data center strategy, implementing Cisco’s internal cloud data center services while significantly improving Cisco’s resiliency posture, time to capability, and cost structure. In keeping with the philosophy that “Cisco is its first and best customer,” Manville continues to showcase the real-world benefits of Cisco’s technology solutions throughout its own network and data centers. This practice has contributed to the reduction of Cisco’s carbon footprint through significant savings in power and increased asset utilization.
Since joining Cisco in 2007, Manville has played a key role in establishing Cisco IT as a trusted advisor to business partners, both internal and external to Cisco. He drives collaboration with external partners to integrate their technologies with Cisco’s, demonstrating the value both provide as one integrated solution. Prior to Cisco, Manville held a variety of IT positions with some of Wall Street’s most respected financial companies. With a career spanning North America and Europe, he began in the industry as a network engineer, designing packet switching networks for customers in the United Kingdom. Manville holds an electrical and electronic engineering degree from University College, London University, and an executive master’s degree in technology management from the University of Pennsylvania.
Trends such as social apps, cloud, and BYOD offer the opportunity to significantly improve customer experiences and increase worker productivity. Making the most of these trends, however, is going to require some new thinking about infrastructure. This presentation will explore how to build on your existing investments and create a programmable data center that will give you the agility and flexibility to keep up with today’s on-demand world.
Network Services Interface: An Interface for Requesting Dynamic Inter-datacenter Network; Tomohiro Kudoh, National Inst. of Advanced Industrial Science and Technology (AIST), Japan
Tomohiro Kudoh received his Ph.D. degree from Keio University in 1992. He joined National Institute of Advanced Industrial Science and Technology (AIST) in 2002. He currently serves as the deputy director of Information Technology Research Institute, AIST. In the past few years his research has focused on network as an IT infrastructure. His recent work also includes the G-lambda project which aims to define an interface to manage network as a Grid resource. He is a co-chair of the OGF (Open Grid Forum) NSI (Network Services Interface) working group.
The Network Services Interface Working Group in the Open Grid Forum has been working to define an open interface standard to enable interoperability between dynamic circuit services, which can be used for inter-datacenter networking.
Evolution of the Architecture and Technology of Data Centers towards Exascale and Beyond; Adel Saleh, UCSB, USA
Dr. Saleh is a Research Professor, Electrical and Computer Engineering Department and Institute for Energy Efficiency, University of California Santa Barbara since October 2011, conducting research on optical networking and photonics technology for chip-scale to global-scale applications. From 2005 to 2011, he was a DARPA Program Manager; from 1999 to 2004, he held various leadership positions in the optical networking industry, including Corvis, the first company to commercialize core all-optical networks. From 1970 to 1999, he was with Bell Labs / AT&T Labs Research, conducting and leading research on optical and wireless networks. He served on the OFC Technical Committee, 1995 to 1998, and served as: Technical Co-Chair, 1999; General Co-Chair, 2001; Steering-Committee Member, 2001-2006. He has more than 100 publications and 25 patents, and holds a Ph.D. from MIT and a B.Sc. from Alexandria University, Egypt, both in Electrical Engineering. He is an IEEE Fellow and an OSA Fellow.
The continual growth of data centers cannot be maintained through incremental advances in today’s technologies and architectures. An alternative architecture based on reconfigurable WDM optical networking technology is presented for realizing future, exascale, elastic data centers.
II. Network Virtualization
Monday, 18 March
Cloud computing lowers the total cost of computing through large pools of resources that are shared across many clients and managed as a single entity. Virtualization is a key enabler that creates a logical version of a physical resource such as a computer or storage device and permits the resource to be allocated to different users as demands change. Cloud providers have traditionally treated their networks as static resources, but this model is changing as academia and industry apply virtualization techniques to networks, enabling more dynamic and efficient use of network resources. This session will discuss the state-of-the-art in network virtualization, providing an overview of the technology and forecasts for its development. The speakers will discuss topics such as:
Reference model, architectural principles and objectives
Role of Software Defined Networks
Network virtualization projects
Challenges and future directions
Role of Optical Network Infrastructure Virtualization in Data Center Connectivity and Cloud Computing; Reza Nejabati;Univ. of Bristol, UK
Reza Nejabati obtained his MSc with distinction in Telecommunication and Information Systems and PhD in Electronic Systems Engineering from the University of Essex. He is currently a lecturer in the Department of Electrical and Electronic Engineering, University of Bristol. He was a lecturer and prior to that an RCUK fellow, in the School of Computer Science and Electronic Engineering, University of Essex. He has over ten years of academic and industrial experience in the field of telecommunication and computer science. His current area of research is in the filed of disruptive new Internet technologies with focus on application of high-speed network technologies, design and control issues for software defined, service-oriented and programmable network, cross layer network design and architecture as well as network architecture and technologies for e-science and cloud computing.
A Datacenter as a Service architecture utilizing coordinated virtualization of distributed datacenters and operator’s optical network is proposed. Two Optical network virtualization methods and a datacenter composition mechanism are introduced and their performance is evaluated.
WAN Virtualization: Looking Beyond Point-to-Point Circuits; Inder Monga, Energy Sciences Network/Lawrence Berkeley Labs, USA
Inder Monga serves as the Chief Technologist and Area Lead of network engineering, tools and research at Energy Sciences Network. Mr. Monga plays a key role in developing and deploying advanced networking services for collaborative and distributed “big-data” science. He has helped contribute to multiple standards in the distributed systems community with currently active roles as the co-chair of the Network Services Interface working group in the Open Grid Forum. He also drives a number of initiatives in the global research and education community and is the co-chair of the Next-Generation Architecture and Distributed Topology Exchange working group at Global Lambda Integrated Facility (GLIF) consortium. Mr. Monga’s research interests include network virtualization, software-defined networking, energy efficiency and distributed computing. He currently holds 17 patents and has over 15 years of industry and research experience in telecommunications and data networking at Wellfleet Communications, Bay Networks, and Nortel. He earned his undergraduate degree in electrical/electronics engineering from Indian Institute of Technology in Kanpur, India, before graduate studies in Boston University’s EECS Department.
Meshes of point-to-point circuits have been the lingua franca for isolating WAN traffic between distributed sites. This talk describes a flexible switching-service abstraction that enables distributed science collaborations as well as enterprise cloud computing.
Extending Network Virtualization into the Optical Domain, Jörg-Peter Elbers; ADVA Optical, Germany
Jörg-Peter Elbers is Vice President Advanced Technology at ADVA Optical Networking in Munich, Germany, and is globally responsible for technology strategy, new product concepts, standardization, and research. Current advanced technology activities include software-defined networking, beyond 100G transmission and next-generation optical access. Prior to joining ADVA in 2007, Jörg-Peter was Director of Technology in the Optical Product Unit of Marconi (now Ericsson). From 1999 to 2001, he worked at Siemens AG, last as Director of Network Architecture in Siemens Optical Networks. He holds a Dr.-Ing. and Dipl.-Ing. degree in electrical engineering from the Technical University of Dortmund, Germany.
After server and storage virtualization, network virtualization adds the missing piece to the cloud computing puzzle. This paper discusses prospects, challenges and solutions for extending network virtualization into the optical domain.
Network Functions Virtualization: Challenges, Vision and Action, Christos Kolias, ETSI NFV, USA
Christos Kolias is currently a senior research scientist at Orange Silicon Valley leading the Software-Defined Networking (SDN) project. He has lectured on OpenFlow/SDN at several events. Christos is a founding member of the “Network Functions Virtualization” (NfV) group. His technical areas of interest include flow-aware routing, high-speed switching, wireless networks, network virtualization and intelligent networks. Before joining Orange, he worked at Google, Covad and Caspian Networks. He has been a visiting faculty member and a frequent lecturer at Stanford University, UCLA, and USC. He holds a Ph.D. in Computer Science from UCLA, where he worked on high-speed packet-switched networks under Professor L. Kleinrock.
A number of the world’s leading telecoms network operators have recently launched a specifications group called “Network functions Virtualization” (NfV). The group’s mission is to to explore and expose the benefits, enablers and challenges for implementing, in software, network functions utilizing evolving standard IT virtualization technology and which could lead into consolidating many network equipment types. NfV has issued a call-for-action to the industry.
Network Virtualization & Software Defined Carrier Networks; Bruce Anthony, IBM STG Wireless Systems, USA
Bruce is a Distinguished Engineer and CTO for IBM's Mobile and Wireless Systems. Over his 30 year tenure with IBM he has lead the creation of new businesses around Networking technology like Thin Clients, Telecom Blade Servers, Mobile Network Optimization Systems and WiFi Acceleration technologies. He is currently responsible to define IBM's strategies and product roadmaps around the Servers, Storage and Networking needed to support Mobile Devices and Software based Carrier Networks.
Software Defined Networking and Cloud Computing are transforming the landscape in Enterprise IT. This talk will provide a perspective on how these technologies can also transform Carrier Networks, the extensions that may be needed to deliver robust network services and a view on new industry efforts like Network Function Virtualization to drive change.
In addition to the special symposium on cloud computing, there will be other sessions with particular focus on the cloud. A panel on “Dynamic Network Services” will discuss how bandwidth-on-demand services offered by public carriers can meet the special requirements of cloud computing and the Service Provider Summit will hold a keynote address entitled "The Impact of Cloudonomics on the Network" by Joe Weinman.
Convergence of Wireless and Optical Networking
Organizers: Kenneth Reichmann, AT&T Labs-Research, USA; Jörg-Peter Elbers, ADVA Optical Networks, Germany
The unprecedented growth in demand for wireless services has spurred a race among carriers to upgrade and build out their mobile and fixed broadband wireless networks. As both the number of wireless sites and the bandwidth per site continue to increase, the importance of well-engineered optical/wireless networks has become ever more apparent. This symposium will assess the convergence of optical and wireless networks from different angles, such as:
• What are key 4G/5G mobile technologies and could those concepts provide a blueprint for optical access?
• What are the requirements which heterogeneous mobile networks impose on optical backhaul networks?
• How much integration between wireless and optical networking is required?
• What is the optimum level of convergence between fixed and mobile networks?
• Can software-defined network technologies help to solve the bandwidth bottleneck in the backhaul?
I. Future Architectures
Tuesday, 19 March
Operator Perspective on Next-Generation Optical Access for High-Speed Mobile Backhaul; Naoto Yoshimoto, NTT Labs, Japan
Naoto Yoshimoto is Senior R&D Manager at NTT Laboratories. He received B.S., M.S., and Ph.D. degrees in electronics and information engineering from Hokkaido University, Japan, in 1986, 1988, and 2003, respectively. He joined NTT Laboratories in 1988, and engaged in the research and development of optical transmission systems and devices for broadband access systems. He is currently the director of Broadband Optical Access System project in NTT Access Network Service Systems Laboratories, and is engaged in the planning of next-generation optical access networks and architectures. In particular, he has recently been devoting effort to advanced research for optical-wireless convergence network technologies and resilient access networks.
Dr. Yoshimoto is a member of the IEEE Communication Society and a senior member of the Institute of Electronics, and he has served the chair of technical sub-committee “Access Network” in OFC2012 and OECC2013. He is also the visiting professor of Hokkaido University since 2010.
Deep-penetrated optical access using advanced photonic technologies will play an important role in the construction of multiple services platforms that can provide not only future small-cell based wireless services beyond 4G, but also M2M towards a big-data society.
A Small Cell Augmentation to a Wireless Network Leveraging Fiber-to-the-Node Access Infrastructure for Backhaul and Power; Patrick Iannone, AT&T Labs-Research, USA
Patrick Iannone (BS Columbia University 1984; PhD Princeton University 1994) has worked in optical access research since joining AT&T Bell Laboratories in 1985 (currently AT&T Labs). He holds 40 U.S. patents and has authored over 100 publications. He has served as IEEE-LEOS Meeting Chair, as an elected member of the IEEE-LEOS Board of Governors and has chaired technical subcommittees for the IEEE-LEOS Annual Meeting and the Optical Fiber Communication Conference (OFC). He has served as OFC Technical Program Co-Chair in 2004 and General Co-Chair in 2006, and is currently Chair of the OFC Steering Committee. Dr. Iannone is a Fellow of the IEEE.
We describe an efficient fiber backhaul strategy for a small-cell network, which leverages facilities associated with an existing fiber-to-the node (FTTN) residential access network. Related optimization studies are also described.
Unified Access and Aggregation Network Allowing Fixed and Mobile Networks to Converge; Philippe Chanclou, France Telecom R&D--Orange Lab, France
Philippe Chanclou received the Ph.D. and Habilitation degrees from Rennes University, France in 1999 and 2007, respectively. He joined the R&D facilities of France Telecom in 1996 where he worked on the research of active and passive optical telecommunications functions for access networks. In 2000, he joined the University of ENST-Bretagne (now TELECOM Bretagne) as a senior lecturer where he was engaged in research on optical switching and optical devices using liquid crystal for telecommunications. During 2001 to 2003, he has participated to the foundation of Optogone Company. Since 2004, he joined France Telecom R&D - Orange Lab where he was engaged in research on the next generation optical access networks.
A new concept for unified access and aggregation network architecture allowing fixed and mobile networks to converge is proposed based on the concepts of Next Generation POP combining structural and functional convergence.
Network Architectures for CPRI Backhauling; Mike Loomis, Alcatel-Lucent, USA
Mike Loomis is VP Technical Sales with Alcatel-Lucent and is responsible for technology strategy and solutions across the Alcatel-Lucent portfolio spanning from 4G LTE to IP Services. He has developed and deployed backhaul designs for 2G/3G and 4G LTE wireless backhaul including small cells. Previously he lead the IP Division consulting engineering organization. He has over 18 years of data networking experience beginning his career with Welfleet communications. He has also held a variety of product management positions in Ethernet Switching and Carrier Ethernet and Network Management portfolios. He holds a B.S. from Rensselear Polytechnic Institute and an MBA from the University of New Hampshire.
Small cell deployments provide unique challenges to the underlying transport networks that provide connectivity between cell sites and back to the wireless core equipment. There are two fundamental types of small cells – All-In-One Metro Cells which include the baseband processing function and Remote Radio Units which rely on centralized baseband processing. There are specific deployment advantages to both models and transport architectures must consider both models. The Remote Radio Unit communicate with the baseband processing function via Common Public Radio Interface or CPRI. There are specific deployment advantages to both models and transport architectures must consider both models. CPRI poses some unique challenges requiring transport at layer 1 and imposing strict latency requirements.
II. Future Technologies
Tuesday, 19 March
4G/5G Mobile Technologies: Can They Be A Blueprint for Optical Networks? Ali Khayrallah, Ericsson, USA
Ali Khayrallah is director of research at Ericsson in San Jose, California. His team is shaping the future of wireless technology, with a focus on radio access. He has been with Ericsson since 1995 in various research positions, first in Research Triangle Park, North Carolina, and now in San Jose. His career interest is leadership in research, technology and innovation. His personal research interest is in information theory and its applications. Previously, he was assistant professor in the electrical engineering department at the University of Delaware. He holds a Ph.D. and an M.S. from the University of Michigan, Ann Arbor, and a B.Eng. from the American University of Beirut. He holds more than 70 US patents and has published more than 50 technical papers.
This paper provides a brief perspective of the evolution of mobile networks with the premise of spectrum as a scarce resource. We highlight some key aspects of mobile technology, and we comment about their connection to optical networks.
Emerging Disruptive Wireless Technologies: Prospects and Challenges for Integration with Optical Networks; Dalma Novak, Pharad, LLC, USA
Dalma Novak is Vice-President at Pharad, LLC who are developing advanced RF-over-fiber and antenna products. She received her PhD in Electrical Engineering in 1992. From 1992 – 2004 she was a faculty member in the Department of Electrical and Electronic Engineering at The University of Melbourne, Australia. Previously Dr. Novak held positions at Dorsal Networks and Corvis Corporation. Dr. Novak is a Fellow of the IEEE and has published over 250 papers in the area of hybrid fiber radio technologies.
We describe some emerging technologies that are being investigated for the realization of next generation wireless networks capable of supporting multiple standards and meeting capacity demands. The challenges associated with their efficient integration in a converged wireless/optical network are also discussed.
Analog & Digital Radio over Fiber – Approaches & Applications; Anthony Ng’Oma, Corning, USA
Dr. Anthony Ng’oma leads a team of scientists and engineers working on short reach communication networks and applications at the main research center for Corning Incorporated, which is located in Corning, NY. He has been actively involved in optical communications research in general and fiber-wireless technology research in particular, for >10 years, both in Europe and the US.
Dr. Ng’oma holds a Ph.D. degree in Optical Fiber Communications, a Professional Doctorate in Engineering degree (PD.Eng) in Information and Communication Technology (ICT), both from Eindhoven University of Technology in The Netherlands, a M.Eng, and a B.Eng. degree (with Merit) in Electrical/Electronics Engineering from the University of Zambia, Zambia. He has authored and co-authored more than 60 peer-reviewed technical publications and journals and two book chapters in the field of fiber-optic communication.
Dr. Ng’oma is a member of the IEEE Photonics Society, and the IEEE Microwave Theory and Techniques Society.
The rapid penetration of smart handheld devices coupled with the sharp rise in the number of video-centric mobile applications have led to a sharp increase in the demand for wireless data capacity and coverage inside buildings. However, wireless capacity and coverage are hampered by poor propagation of wireless signals inside buildings and the lack of high-capacity infrastructure. Therefore, effective solutions to the wireless bandwidth crunch will require the deployment of a large number of antennas inside buildings, fed by high-capacity backhaul infrastructure. The combination of optical fiber with analog signal transport has long been considered an attractive wireless signal distribution solution. However, analog transport has significant technical challenges when advanced wireless technologies such as MIMO and mm-waves are considered. This paper investigates the efficacy of simple and practical RoF transmission techniques through experimental demonstration of ultra high-capacity wireless systems operating at > 50 Gb/s.
SDN and OpenFlow for Converged Access/Aggregation Networks; Hagen Woesner, BISDN GmbH, Germany
Hagen Woesner studied computer science in Chemnitz and Berlin and received his diploma and doctorate degree from TU Berlin for work on IEEE 802.11 MAC protocol optimization and optical packet backbone architecture and access protocols. From 2003, he spent three postdoc years with Create-Net, Trento, Italy, working on fiber/wireless interconnection and impairment-based optical routing. Since 2007 he has been with EICT in Berlin, where he is coordinator of the pan-European OpenFlow testbed OFELIA. Recently he co-founded BISDN GmbH, a Berlin-based start-up working on SDN data path software and appliances. He chaired the European Workshop on SDN (EWSDN) in 2012.
This paper discusses necessary steps for the migration from today’s residential network model to a converged access/aggregation platform based on software defined networks (SDN).