Abstract: In the OSI Reference Model for networking, routing is a function of layer 3. Layer 2 is supposed to deliver a packet across a shared medium to a neighbor. What does it mean to be doing routing in layer 2 vs layer 3? In fact, the only way to understand this, is to understand the historical background about how these technologies evolved. This tutorial explains the spanning tree algorithm, why it was invented, its limitations, and why the world still wants large multi-link Ethernets. Why don't we just replace Ethernet today with IP? We will explain the limitations of IP as a layer 3 protocol, as well as why these limitations are idiosyncrasies of IP rather than intrinsic properties of layer 3. We then describe why TRILL can provide the ease of management of Ethernet with all the functionality of layer 3 routing. We describe link state routing, and the details of IS-IS, upon which TRILL is based. And we compare TRILL with some alternative approaches to data center interconnection that have been recently proposed. We will discuss generic fabric issues such as the pros and cons and hows of hierarchical vs flat addresses, keeping packets for a particular flow in order, allowing large packets, providing backpressure to avoid congestion loss, central vs distributed forwarding table calculation, and how various buzzwords that have popped up recently such as OpenFlow fit into the picture.

Speaker: Radia Perlman (slides, video: part1, part2, part3) is a Fellow at Intel Labs, USA. She designed scalable and robust link state routing, and specifically, the IS-IS routing protocol in use in many ISPs, and from which the OSPF protocol was derived. She also designed the spanning tree algorithm which has been the backbone of Ethernet for decades, and TRILL, the IETF standard that creates a much better Ethernet. She is the author of the textbook "Interconnections" and coauthor of the textbook "Network Security". She holds over 100 patents, a PhD from MIT, and awards such as the Usenix lifetime achievent award, the Sigcomm lifetime achievement award, and an honorary doctorate from KTH.

Abstract: Security challenges are appearing in every aspect of computing, and today customers need and expect security functionality to be embedded in their networking fabric. This tutorial describes the security features commonly found in networking components today and discusses some challenges for which we still need solutions. How can a public cloud offer guaranteed isolation between distrustful tenants, not only to prevent data leakage or corruption, but to guarantee that a DDoS attack against, or malfunction of one tenant not affect other tenants? What kinds of denial of service attacks are seen in real deployments and what types of mitigations are possible? What are the tradeoffs of terminating security associations within the infrastructure vs. at the endpoints? Routing protocols were designed to allow autoconfiguration, and assumed all routers were trustworthy. Why did misconfiguration of a single BGP router cause global consequences, and what sorts of security mitigations can make BGP avoid such problems at reasonable cost? Note that even if a routing protocol is working correctly, it does not guarantee that routers will forward packets correctly. What kind of routing architecture can guarantee that A and B can communicate, with a reasonable share of bandwidth, even if there are malicious routers giving false information in the routing messages, or flooding the network with garbage traffic, or maliciously discarding traffic from one source? This tutorial will cover a quick introduction to general security concepts such as public key vs secret key cryptography so that no prior security background is needed, and then focus on network-infrastructure-related security issues, along with opportunities for research.

Speaker: Charlie Kaufman (slides, video: part1, part2) is Security Architect (USA) for Windows Azure, Microsoft's Cloud Computing offering, and is responsible for designing mechanisms to protect Windows Azure both from network-based attacks coming from the Internet and from customer launched attacks from VMs being hosted by Windows Azure. Previously he was a member of the Windows Core Architecture group designing security enhancements for Windows in the areas of authentication, authorization, integrity protection, network security, system management, and user interfaces. He was a major contributor to IETF standards efforts designing DNSSEC and IPsec, and is co-author of the textbook: "Network Security: Private Communication in a Public World". He served on the National Academy of Sciences expert panel that wrote the book: "Trust in Cyberspace". He holds over 40 patents in the fields of computer security and computer networking.

Session Chair: Prof. Hussein Mouftah, University of Ottawa, Canada

StrideBV: Single Chip 400G+ Packet Classification

Thilan Ganegedara (University of Southern California, USA); Viktor K. Prasanna (University of Southern California, USA)

Partition/Aggregate in Commodity 10G Ethernet Software-Defined Networking

Robert Birke (IBM Zurich Research Laboratory, Switzerland); Daniel Crisan (ETHZ & IBM Research, Switzerland); Katherine Barabash (IBM, Israel); Anna Levin (IBM, Israel); Casimer DeCusatis (IBM Corporation, USA); Cyriel Minkenberg (IBM Research - Zurich, Switzerland); Mitchell Gusat (IBM Zurich research laboratory, Switzerland)

A Simple IP Fast Reroute Scheme for Full Coverage

Spyridon Antonakopoulos (Bell Labs, Alcatel-Lucent, USA); Yigal Bejerano (Bell-Labs, Alcatel-Lucent, USA); Pramod Koppol (Bell Labs, Alcatel-Lucent, USA)

MPLS Implementation for the Linux Kernel

Igor Maravić (Belgrade University, Serbia); Aleksandra Smiljanić (Belgrade University, Serbia)

Session Chair: Prof. Igor Radusinović, University of Montenegro, Montenegro

Design of a Shared Memory Carrier Ethernet Switch Compliant to Provider Backbone Bridging-Traffic Engineering (IEEE802.1Qay)

Saurabh Mehta (Indian Institute of Technology, Bombay, India); Ashutosh Upadhyaya (IIT Bombay, India); Sarvesh Sanjay Bidkar (Indian Institute of Technology Bombay, India); Ashwin A Gumaste (Indian Institute of Technology, Bombay, India)

Module-Level Matching Algorithms for MSM Clos-Network Switches

Yu Xia (Polytechnic Institute of NYU, USA); H. Jonathan Chao (Polytechnic Institute of New York University, USA)

A Practical and Scalable Congestion Control Scheme for High-Performance Multi-Stage Buffered Switches

Najla Alfaraj (Polytechnic Institute of NYU, USA); Yang Xu (Polytechnic Institute of New York University, USA); H. Jonathan Chao (Polytechnic Institute of New York University, USA)

Improving Performance in a Combined Router/Server

Voravit Tanyingyong (KTH Royal Institute of Technology, Sweden); Markus Hidell (KTH Royal Institute of Technology, Sweden); Peter Sjödin (KTH, Sweden)

Integration of Look-Ahead Multicast and Unicast Scheduling for Input-Queued Cell Switches

Hao Yu (Technical University of Denmark, Denmark); Sarah Ruepp (Technical University of Denmark, Denmark); Michael S. Berger (Technical University of Denmark, Denmark); Lars Dittmann (Technical University of Denmark, Denmark)

Session Chair: Prof. Jonathan Chao, Polytechnic University of NYU, USA

Updating Designed for Fast IP Lookup

Nataša Maksić (Belgrade University, Serbia); Zoran Čiča (Belgrade University, Serbia); Aleksandra Smiljanić (Belgrade University, Serbia)

Large-scale Multi-flow Regular Expression Matching on FPGA

Yun Qu (University of Southern California, USA); Yi-Hua Yang (FutureWei Technologies, USA); Viktor K. Prasanna (University of Southern California, USA)

LightFlow: Speeding Up GPU-based Flow Switching and Facilitating Maintenance of Flow Table

Nobutaka Matsumoto (KDDI R&D Laboratories Inc., Japan); Michiaki Hayashi (KDDI R&D Laboratories Inc., Japan)

Abstract: Implementing the mobile backhaul along with the existing fixed-services oriented IP network brings many challenges for operators. These challenges especially arise when it comes to implementing a converged physical topology and routing design that need to accomodate all types of traffic and services, both fixed and mobile, and still hold a cost effective way of expanding the network. Having that in mind, we set some demands towards this “converged“ network. What physical topology and routing choices can help support the continuous growth of public Internet traffic? How do we deal with residential Internet, lack of IPv4 addresses and introducing IPv6? What is the cost-effective way of physically expanding the network, especially when attaching a large number of mobile base stations around the country together with the fixed access nodes? What physical and routing design and hierarchy do we choose? What kind of boxes are suitable? All these questions have driven Telekom Srbija’s design choices for implementing the mobile backhaul onto the existing IP network. In this presentation we will share our experience and design decisions on this theme.

Speaker: Igor Milojević (slides) is the Head of Service Architecture Engineering at Telekom Srbija. He is responsible for the overal technical and operational network design, as well as for the design of individual services. The area of work covers residential, business and wholesale services for IP data, voice and multimedia in both fixed and mobile domain. He started his career at Telekom Srbija as a Broadband Network Engineer, later holding the positions of System Engineer and Head of IP/MPLS Engineering. Besides Serbia, he also worked on large network and service design and implemetation projects in Montenegro and Bosnia. His major projects include Telekom Srbija’s IP/MPLS network design, mobile backhaul solutions, IP and mobile QoS, IMS and IPTV implementations and services, Telekom Srbija’a mobile backhaul strategy and others. Igor holds a Master Degree in Telecommunications from the School of Electrical Engineering of Belgrade University.

Session Chair: Prof. Achille Pattavina, Politecnico di Milano, Italy

Large MTUs and Internet Performance

David E Murray (Murdoch University, Australia); Terry Koziniec (Murdoch University, Australia); Kevin Lee (Murdoch University, Australia); Michael Dixon (Murdoch University, Australia)

Single Node Protection Without Bouncing in IP Networks

Takuya Yoshihiro (Wakayama University, Japan); Masahiro Jibiki (National Institute of Information and Communications Technology, Japan)

Probing-Based Two-Hop Relay with Limited Packet Redundancy

Jiajia Liu (Tohoku University, Japan); Juntao Gao (Future University Hakodate, Japan); Xiaohong Jiang (Future University-Hakodate, Japan); Hiroki Nishiyama (Tohoku University, Japan); Nei Kato (Tohoku University, Japan)

Comparison of Machine Learning Models for Classification of BGP Anomalies

Nabil M. Al-Rousan (Simon Fraser University, Canada); Ljiljana Trajković (Simon Fraser University, Canada)

Session Chair: Prof. Wojciech Kabacinski, Technical University of Poznan, Poland

Peer-to-Peer Real-Time Group Communication Over Content-Centric Network

Vincent Luk (Hong Kong University of Science and Technology, Hong Kong); Albert K. Wong (Hong Kong University of Science and Technology, Hong Kong); Chin Tau Lea (Hong Kong University of Science and Technology, Hong Kong)

Performance Implications of Deadlock Avoidance Techniques in Torus Networks

Bogdan Prisacari (None, Switzerland); German Rodriguez (Barcelona Supercomputing Center, Spain); Cyriel Minkenberg (IBM Research - Zurich, Switzerland); Ramon Beivide (University of Cantabria, Spain)

Assessing Physical Network Vulnerability Under Random Line-Segment Failure Model

Xiaoliang Wang (Nanjing University, P.R. China); Xiaohong Jiang (Future University-Hakodate, Japan); Achille Pattavina (Politecnico di Milano, Italy); Sanglu Lu (Nanjing University, P.R. China)

On Stability of Virtual Topologies in Dynamic Multilayer Networks

Jacek Rzasa (AGH University of Science and Technology, Poland); Artur Lason (AGH University of Science and Technology, Poland); Krzysztof Rusek (AGH University of Science and Technology, Poland); Andrzej Szymanski (AGH University of Science and Technology, Poland); Andrzej Jajszczyk (AGH University of Science and Technology, Poland)

On Forwarding State Control in VPN Multicast Based on MPLS Multipoint LSPs

Gonzalo M Fernández Del Carpio (Universidad Católica San Pablo & Universidad Carlos III de Madrid, Peru); D. Larrabeiti (Universidad Carlos III de Madrid, Spain)

Session Chair: Prof. Xiaohong Jiang, Future University-Hakodate, Japan

A Hybrid Network Traffic Engineering System

Zhenzhen Yan (University of Virginia, USA); Chris Tracy (ESnet, USA); Malathi Veeraraghavan (University of Virginia, USA)

Classes of Service for Daisy Chain Interconnects

Hans Eberle (Oracle, USA); Wladek Olesinski (Oracle, USA)

Fair Packet Dropping

Aleksandra Smiljanić (Belgrade University, Serbia); Igor Maravić (Belgrade University, Serbia); Luka Milinković (Belgrade University, Serbia)

Scalable Per-flow Resource Management for Large Hierarchical Networks

Irena Atov (University of Melbourne, Australia); Charlie Kaufman (Microsoft, USA); Radia Perlman (Sun Microsystems Laboratories, USA)

Statistical Approach for Detecting Malicious PCE Activity in Multi-domain Networks

Molka Gharbaoui (Scuola Superiore Sant'Anna, Italy); Francesco Paolucci (Scuola Superiore Sant'Anna, Italy); Alessio Giorgetti (Scuola Superiore Sant'Anna, Italy); Barbara Martini (CNIT, Italy); Piero Castoldi (Scuola Superiore Sant'Anna, Italy)

Session Chair: Prof. Naoaki Yamanaka, Keio University, Japan

Dynamic Pump-Wavelength Selection for Optical Packet Switch with Recursive Parametric Wavelength Conversion

Nattapong Kitsuwan (The University of Electro-communications, Japan); Eiji Oki (The University of Electro-Communications, Japan)

Dynamic Routing and Resource Allocation in Time-Driven-Switched Optical Networks

Francesco Musumeci (Politecnico di Milano, Italy); Luis Hernandez (Politecnico di Milano, Italy); Lorena Zapata (Politecnico di Milano, Italy); Massimo Tornatore (Politecnico di Milano & University of California, Davis, Italy); Achille Pattavina (Politecnico di Milano, Italy)

Cost-Optimized Dimensioning of Translucent WDM Networks with Mixed-Line-Rate Spectrum-Flexible Channels

António Eira (Nokia Siemens Networks, Portugal); João Manuel Ferreira Pedro (Nokia Siemens Networks Portugal S.A. & Instituto de Telecomunicações, Portugal); João Pires (Instituto de Telecomunicações & Instituto Superior Técnico, Portugal)

Monitoring Trail Allocation in All-Optical Networks with the Random Next Hop Policy

Yangming Zhao (University of Electronic Science and Technology of China, P.R. China); Shizhong Xu (University of electronic science and Technology, P.R. China); Bin Wu (University of Electronic Science and Technology of China, P.R. China); Xiong Wang (University of Electronic Science and Technology, P.R. China); Sheng Wang (University of Electronic Science and Technology of China, P.R. China)

Multidimensional Elastic Routing for Next Generation Optical Networks

Milorad Cvijetic (University of Arizona, USA); Ivan B. Djordjevic (University of Arizona, USA); Neda Cvijetic (NEC Laboratories America, Inc., USA)

Optical Transport Network Design with Collocated Regeneration and Differential Delay Compensation

João Santos (Nokia Siemens Networks Portugal SA, Portugal); João Manuel Ferreira Pedro (Nokia Siemens Networks Portugal S.A. & Instituto de Telecomunicações, Portugal); António Eira (Nokia Siemens Networks, Portugal); Paulo Monteiro (Nokia Siemens Networks Portugal, Portugal); João Pires (Instituto de Telecomunicações & Instituto Superior Técnico, Portugal)

Session Chair: Dr. Cyriel Minkenberg, IBM Research, Switzerland

Multiple Service Load-Balancing with OpenFlow

Marc Koerner (Technische Universitaet Berlin, Germany); Odej Kao (TU Berlin, Germany)

ORAN: OpenFlow Routers for Academic Networks

Ahmad Rostami (Technical University of Berlin, Germany); Tobias Jungel (EICT GmbH, Germany); Andreas Koepsel (EICT GmbH, Germany); Hagen Woesner (EICT, Germany); Adam M Wolisz (Technical University of Berlin, Germany)

RSTP-SP: Shortest Path Extensions to RSTP

Eduard Bonada (Universitat Pompeu Fabra, Spain); Dolors Sala (Universitat Pompeu Fabra, Spain)

Panel Chair: Dr. Mitchell Gusat, IBM Research, Switzerland

Panelists: Ana Radovanović (Google, USA), Ed Turner (Gnodal, Great Britain), Vijoy Pandey (IBM, USA), Srđan Tomašević (Absolut OK, Serbia), Achim Autenrieth (ADVA, Germany)

Ana Radovanović (slides) graduated from University of Belgrade, School of Electrical Engineering in 1999. Then, she got accepted to the graduate program in Electrical Engineering, Columbia University, New York. Upon receiving her PhD in 2004, she joined IBM T.J. Watson Research Labs as a Research Staff Member. In 2008, she joined Google Research, where she has been involved in various research projects in the areas of scheduling, online advertising, traffic modeling.

Ed Turner (slides) is one of the founders of Gnodal and one of the designers of their Ethernet Datacentre fabric ASIC. Previously he has held design roles at 3Com and Quadrics, and has developed silicon for Ethernet switches as well as proprietary high performance, low latency, multipath supercomputer networks. Ed has participated in the IEEE 802.3 WG and was one of the editors for IEEE Std 802.3ae-2002 (10Gb/s Ethernet). Ed holds 5 issued US patents related to his work and has a M.Eng. degree in Electrical and Information Sciences from the University of Cambridge. He can be reached at ed@gnodal.com.

Vijoy Pandey (slides) is an IBM Distinguished Engineer and CTO of Network OS. He leads the architecture team within IBM System Networking. He has over 15 years of experience in research, design and development of networks and systems. Vijoy has worked in the areas of data center virtualization, cloud storage, energy-aware switching and highly scalable and fault-tolerant architectures, while at IBM. Vijoy has previously held various other technical leadership and senior engineering management roles in switching, security, and application delivery controller companies. He has been an active member in IEEE 802.1 standards work. Vijoy holds a bachelor’s degree in Computer Science and Engineering from the Indian Institute of Technology, and a Ph.D. from the University of California, Davis in the area of wireless networking.

Srđan Tomašević (slides) is a managing director of Absolut OK company, one of the first private B2B Internet service providers well known for implementing and maintaining one of the leading datacenters in Serbia. Absolut OK is a part of the regional media group with datacenters in Slovenia and Bosnia and Herzegovina. Srdjan is also a director of the SBB Solutions, business sales department of SBB-Serbia Broadband which is the largest cable operator in Serbia. Prior to working at SBB, he worked at Telekom Serbia founding and managing business sales department. Srđan got his B.Sc. degree in electrical engineering at Belgrade University.

Achim Autenrieth (slides) is currently Principle Research Engineer Advanced Technology in the CTO Office at ADVA Optical Networking, where he is working on the design and evaluation of multilayer transport networks, control plane, and software defined networking concepts. He received his Dipl.-Ing. and Dr.-Ing. degree in Electrical Engineering and Information Technology from the Munich University of Technology, Germany, in 1996 and 2003. Before joining ADVA Optical Networking in June 2010, he was with Siemens AG and Nokia Siemens Networks, where he was last working as Head of BCS R&D Innovations. Achim is a member of IEEE and VDE/ITG, he authored or co-authored more than 60 reviewed and invited scientific publications and he is technical program committee member of ECOC, DRCN, and RNDM.

Session Chair: Prof. Milan Bjelica, Belgrade University, Serbia

Exploiting Dynamic Voltage and Frequency Scaling in Networks on Chip

Andrea Bianco (Politecnico di Torino, Italy); Paolo Giaccone (Politecnico di Torino, Italy); Nanfang Li (Politecnico di Torino, Italy)

Modeling and Optimizing the Delay-Energy Tradeoff in TDM Systems with Sleep Mode

Isabella Cerutti (Scuola Superiore Sant'Anna, Italy); Kassem Abdallah (Scuola Superiore Sant'Anna & TeCIP Institute, Italy); Pier Giorgio Raponi (Scuola Superiore Sant'Anna, Italy); Piero Castoldi (Scuola Superiore Sant'Anna, Italy)

Dynamic Voltage and Frequency Scaling in Parallel Network Processors

Raffaele Bolla (University of Genoa, Italy); Roberto Bruschi (CNIT, Italy); Chiara Lombardo (University of Genoa, Italy)

A Slice Structure Using the Management of Network Traffic Prediction for Green IT

Yuji Yano (Renesas Electronics Corporation, Japan); Hisashi Iwamoto (Renesas Electronics Corporation, Japan); Yasuto Kuroda (Renesas Electronics Corporation, Japan); Shiro Ohtani (Hitachi Information & Communication Eng., Japan); Shingo Ata (Osaka City University, Japan); Kazunari Inoue (Osaka University, Japan)