TRACK 2: Tutorial 2
(Half Day - morning)
Resilient Network Infrastructures for Global Grid Computing
Luca Valcarenghi

ABSTRACT:Grid Computing is defined by Ian Foster and Steve Tuecke as the "coordinated resource sharing and problem solving in dynamic, multi-institutional virtual organizations." The transport network infrastructure represents one of the main resources to be shared. Emerging high capacity intelligent grid transport network infrastructures, such optical transport networks based on Generalized MultiProtocol Label Switching (GMPLS) and Automatically Switched Optical Networks (ASON)/Automatically Switched Transport Networks (ASTN), are fostering the expansion of grid computing from Local Area Networks (LAN) (i.e., cluster grid) to Wide Area Networks (WAN) (i.e., global grid). Indeed they are able to guarantee the required Quality of Service (QoS) to heterogeneous grid applications that share the same grid network infrastructure. This tutorial addresses one particular aspect of the grid transport network QoS: resilience, i.e. the ability of overcoming failures. In particular it gives an overview of the current efforts for guaranteeing grid application resilience in spite of different types of failures, such as network infrastructure failures or computer crashes. Finally it shows that by by tailoring the utilized recovery scheme to the type of failure occurred it is possible to optimize the failure recovery process.

Tutorial Outline:

- Grid Computing Overview
+ Grid Computing Building Blocks
+ Open Grid Service Architecture
+ Open Grid Service Infrastructure
+ Grid Network Services
+ From Local to Global Grid Computing
+ QoS Support for Global Grid Computing
- Resilient Network Infrastructures
+ Resilience as a QoS parameter
+ Resilience in Intelligent Network Infrastructures
+ IP/MPLS Layer Resilience
+ Optical (WDM) Layer Resilience
+ Multilayer Network Resilience
+ GMPLS Resilience
- Combining Grid Network Services with Network Infrastructure Resilience
+ Resilience Requirements
+ Grid Based Resilience
+ Integrated Global Grid Computing Resilience
+ Comparing GMPLS Based Resilience with OSPF Based Resilience
* Mixed Integer Programming formulation
+ Comparing Path Restoration and Service Migration for Link failure Recovery

Luca Valcarenghi holds a Laurea degree in Electronics Engineering (1997) from the Politecnico di Torino, Italy, a M.S. in Electrical Engineering (1999), and a Ph.D. in Electrical Engineering-Telecommunications (2001) both from the University of Texas at Dallas (UTD). In January 2002 he was appointed as Research Associate of the Optical Networking Advanced Research (OpNeAR) Lab of the University of Texas at Dallas Erik Jonsson School of EE/CS. He is currently Assistant Professor at the Scuola Superiore Sant'Anna of University Studies and Doctoral Research of Pisa, Italy. Dr. Valcarenghi co-authored more than a dozen papers published in international journals and presented in leading international conferences. He is member of the IEEE and has been part of the Organizing Committee and Technical Program Committee of international conferences such as OptiComm2000 and Optical Networking and Systems Symposium at IEEE Globecom 2003 and Optical Communications, Networks, and Systems Symposium at IEEE Globecom 2004. His main research interests are Optical Networks design, analysis, and optimization; Artificial Intelligence optimization techniques; Communication Networks resilience; IP over WDM networking; QoS in Grid networking. In particular he is actively participating, as member of CNIT (National Inter-University Consortium for elecommunications), to the project.


TRACK 2: Tutorial 3
(Half Day - afternoon)
Internet Infrastructure Security
Dr. G. Manimaran
Dept. of Electrical and Computer Engineering
Iowa State University, Ames, IA

ABSTRACT:The Internet has witnessed an enormous growth over the last decade and has become ubiquitous. Most of the research focus in the past has been on improving the performance and scalability of the Internet. The issue of securing the Internet has become a central issue now due to a series of attacks that shut down some of the world's most high profile Web sites, including Amazon and Yahoo. Several such attacks are reported in CERT advisories. Moreover, the growing concerns for cyber terrorism have made the government and researchers to realize the importance of Internet security. Securing the Internet, like any other fields of computers, is based on the principle of confidentiality and integrity. Confidentiality indicates that all data send by senders should be accessible to only legitimate receivers, and integrity indicates that the data received should only be sent/modified by legitimate senders. This principle exists in every field, but the presence of packet sniffers, malicious routers, covert channels, eavesdroppers, denial-of-service (DoS) in the Internet makes this extremely important problem quite challenging.

The past several years have seen a surge of Internet security research in the field of information assurance, which primarily focused on protecting the data using techniques such as authentication and encryption. However, information assurance assumes that the devices responsible for encrypting, forwarding and sending are trustworthy. Researchers are now questioning these assumptions, as instances have taken place where the network infrastructure (e.g., routers, servers) are compromised to the advantage of the malicious adversaries. Therefore, Internet infrastructure security is the need of the hour.

Dr. G. Manimaran is an Assistant Professor in the Department of Electrical and Computer Engineering at Iowa State University, since January 1999. He received his Ph.D degree in Computer Science and Engineering from IIT Madras, India, in 1998. His research expertise are in the areas of Trusted Internet encompassing QoS, infrastructure security, reliability focusing on routing, multicasting, and DDoS issues; and resource management in real-time systems. He has co-authored over 90 peer-reviewed research papers in international journals and conferences/workshops, of which two conference/workshop papers received the best paper awards. He is a co-author of the text Resource management in real-time systems and networks, MIT Press, 2001. He has served as guest co-editor for for the IEEE Network special issue on Multicasting: An enabling technology, Jan/Feb 2003, Journal of High Speed Networks special issue on Trusted Internet, 2004, Journal of Systems and Software special issue on Parallel and Distributed Real-Time Systems, 2004. He is a founding co-chair of the Trusted Internet Workshop held in conjunction with HiPC. He has served as a member of technical program committee and session chair in several IEEE conferences. He is a member of the IEEE, IEEE Computer and Communication Societies, and ACM. gmani.


TRACK 3: Tutorial 4
(Full Day)
High-Speed networking: A Systematic Approach to High Bandwith Low-Latency Communications
Dr. J. Sterbenz

ABSTRACT: This tutorial presents a comprehensive introduction to all aspects of high-speed networking, based on the book High-Speed Networking: A Systematic Approach to High-Bandwidth Low-Latency Communication, James P.G. Sterbenz and Joseph D. Touch, John Wiley, 2001. The target audience includes computer scientists and engineers who may have expertise in a narrow aspect of high-speed networking (such as switch design), but want to gain a broader understanding of all aspects of high-speed networking and the impact that their designs have on overall network performance. This tutorial is not about any particular protocols and standards, but is rather a systemic and systematic approach to the principles that guide the research and design of high-speed networks, protocols, and applications.

The network is a complex system of systems, and high-speed networking does not result from the design of individual components or protocols in isolation. Thus, this tutorial presents a systemic approach to high-speed networks, where the goal is to provide high bandwidth and low latency to distributed applications, and to deal with the high bandwidth-x-delay product that results from high-speed networking over long distances. A set of fundamental axioms is presented (Know the past present and future, Application primacy, High-performance paths, Limiting constraints, and Systemic optimisation), followed by the major topics:

* Network architecture and topology
* Network control and signalling
* Communication links
* Switches and routers
* End systems
* End-to-end protocols
* Networked applications

A set of design principles are defined and applied to each of the topics:

1. Selective optimisation
2. Resource tradeoffs
3. End-to-end arguments
4. Protocol layering
5. State management
6. Control mechanism latency
7. Distributed data
8. Protocol data unit structure

A set of design techniques (scaling time and space, masking the speed of light, specialised hardware implementation, parallelism and pipelining, data structure optimisation, cut-through and remapping) are introduced and applied as appropriate.

Dr. James P.G. Sterbenz
is a Visiting Research Scientist in the Computer
Networks Research Group at the University of Massachusetts, Amherst , and a Visiting Professor in Computing at Lancaster University, UK. He has been PI for several DARPA and NASA funded research programs in the areas of survivable, disruption-tolerant, mobile, wireless, and active networking, and TCP and Web performance. He has previously held senior research staff and management positions at BBN Technologies, GTE Laboratories, and IBM, and holds a D.Sc. in Computer Science from Washington University in St. Louis. He is program co-chair for IEEE Hot Interconnects 2004, and was program co-chair of IWAN 2003, 2002, and PfHSN'99. He is past chair of the IEEE Communications Society Technical Committee on Gigabit Networking, chair of the IFIP Protocols for High Speed Networks Steering Committee, member of the IFIP Active Networks steering committee, senior member of the IEEE, member of the ACM, IEE (UK), IEICE (Japan), the Internet Society Interplanetary Special Interest Group, and on the editorial board of IEEE Network. He is author of the book High-Speed Networking: A Systematic Approach to High-Bandwidth Low-Latency Communication.

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