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Krishan Sabnani is a prominent networking researcher and leader with a 
worldwide reputation. He is currently Vice President of Networking Research at Bell Labs. He manages all networking research at Bell Labs, comprising ten departments in six countries: USA, France, Germany, UK, India, and Belgium. Krishan has conceived and launched numerous systems projects in the areas of internet working and wireless networking.
His successful transfers of research ideas to products in Alcatel-Lucent and AT&T business units have had a major positive impact on the business. Krishan has also conducted extensive personal research in data and wireless networking. He made major contributions in the communications protocols area. For example he designed the SNR, RMTP, and Airmail protocols. He also made significant contributions to conformance test generation, protocol validation, automated converter generation, and reverse engineering.
Krishan received the 2005 IEEE Eric E. Sumner Award and the 2005 IEEE W. Wallace McDowell Award. He is a Bell Labs Fellow and a Fellow of the Institute of Electrical and Electronic Engineers (IEEE) and the Association of Computing Machinery (ACM). He received the Leonard G. Abraham Prize Paper Award from the IEEE Communications Society in 1991.
Krishan received the 2005 Distinguished Alumni Award from Indian Institute of Technology (IIT), New Delhi, India. He also won the 2005 Thomas Alva Patent Award from the R&D Council of New Jersey. He also received President of India's Gold Medal from IIT Delhi and the Institution of Engineers’ (India) Gold Medal both for 1975. He holds 40 patents and has published more than 70 papers.
Krishan received his B. Tech. in electrical engineering from IIT Delhi in 1975, and a Ph.D. in electrical engineering from Columbia University, New York, in 1981. He joined Bell Labs in 1981.
Breakthrough Networking Technologies from Bell Labs
Abstract
The Telecom industry is moving to an Internet core for all of its services. Even cellular networks, with billions of end points, are going through this transformation. This poses a number of challenges, especially with ever-increasing content traffic. Traffic on these all networks is growing rapidly, although the overall revenue per user is not growing. This poses some unique challenges for this industry. Here are some of our major initiatives that address them:
1. Opex costs are beginning to dominate the overall cost of ownership of networks. This trend is accelerating with the deployment of Femto cells in homes and the introduction of increasingly complex services. Network management is still ad hoc for all telecom networks and involves elaborate processes. Opex comprises at least 75% of total expenses and is increasing. To change this trend, we need extensive automation of deployment, configuration and optimization of networks. These solutions need to be adaptable to the changes in the networks, and scale well with their size. Scalability requires decentralized solutions where discovery and network-integration tasks are performed with locally available information under local control. This is in contrast to mostly centralized network management systems used today. We have several programs to achieve this goal.
2. Mobility is not a core part of the original IP protocol. This results in different handling for mobile users than for wire-line users. Mobility support requires complex and inefficient routing. Bell Labs has designed a new IP protocol which can handle both mobile and wire-line users. This will result in simpler network architecture and eliminate inefficient routing for mobile hosts.
3. Traffic continues to grow exponentially, and video is the dominant type. To deal with this growth, express lanes should be added to the current Internet architecture. The number of real-time video flows must be limited, because the uncontrolled addition of such flows can hurt overall performance. In addition, 70% of the traffic through any core router is transit. Bypassing this transit traffic in the optical domain can result in substantial cost and power savings.
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Dr. Ramakrishnan joined AT&T Bell Labs in 1994 and has been with AT&T Labs-Research since its inception in 1996. Prior to 1994, he was a Technical Director and Consulting Engineer in Networking at Digital Equipment Corporation. Between 2000 and 2002, he was at TeraOptic Networks, Inc., as Founder and Vice President.
A DMTS at AT&T Labs-Research, K. K. is involved in several technical and strategic activities in networking and information distribution. He has published nearly 150 papers and has over 90 patents issued. K.K’.s current work is on a range of topics including information distribution, multimedia content distribution and protocols designed to be robust against failures and losses across multiple layers.
K.K. is an IEEE Fellow and an AT&T Fellow, recognized for his contributions to communications networks, including congestion control, traffic management and VPN services. His work on the “DECbit” congestion avoidance mechanism was recognized in the 1995 retrospective issue of ACM Sigcomm Computer Communication Review as one of the 16 most important papers published over the previous 25 years in ACM Sigcomm publications. The work once again received the ACM Sigcomm Test of Time Paper Award in 2006.
K.K. has been on the editorial board of the IEEE/ACM Transactions on Networking and IEEE Network Magazine and has been a member of the National Research Council Panel on Information Technology for NIST. He is the General Chair and Technical Program Chair of several recent workshops and conferences on communications and protocols. He has participated in numerous standards bodies working on communication networks.
K. K. received his MS from the Indian Institute of Science (1978), an MS (1981) and Ph.D. (1983) in Computer Science from the University of Maryland, College Park, Maryland, USA.
CloudNet: Enterprise Ready Virtual Private Clouds
Abstract
Cloud computing has a great potential to change how enterprises run and manage their IT systems. Cloud computing platforms provide customers with flexible, on demand resources at low cost. However, while existing offerings are useful for providing basic computation and storage resources, they fail to provide the security and network controls that enterprise customers need.
The CloudNet architecture provides more comprehensive control over network resources and security for users by utilizing Virtual Private Networks to securely and seamlessly link cloud and enterprise sites. CloudNet incorporates VM migration over WANs.
We see WAN migration transforming the scope of provisioning from a single data center to multiple data centers spread across the country or the world. This will open new opportunities for cross data center load balancing and dynamic application placement based on metrics like latency to users or energy cost.
(This is joint work with Timothy Wood (UMass), Jacobus van der Merwe (AT&T Labs Research), and Prashant Shenoy (UMass). )
