Important Dates

Paper registration deadline:
February 1, 2010

Submission deadline:
February 10, 2010

Acceptance notification: 
April 16, 2010

Final version:
June 1, 2010

September 7-9, 2010




2nd Workshop on Data Center - Converged and Virtual Ethernet Switching (DC CAVES)

September 6, 2010, Amsterdam, The Netherlands


The traditional Data Center (DC) compute model, especially in the x86 space, has consisted of lightly utilized servers running a bare metal OS or a Hypervisor with a small number of Virtual Machines (VMs). In this traditional model, servers attach to the network lower bandwidth links, such as 1 Gbps Ethernet and 2 or 4 Gbps Fibre Channel.  This physical compute model suffers from two major issues:  High capital expenses due to under utilized servers and multiple fabrics; and High operational expenses due to manual administration of many management tools.  As such, the management tasks have been focused on maintaining the infrastructure and not on the services that are provided by the infrastructure to the business.

In our view Data Centers are under going a major transition toward a Converged and Virtualized compute model.  This new model allows for construction of flexible IT capability that enables the optimal use of compute and information to support business initiatives.  This model has many highly utilized servers running many VMs per server, using high bandwidth links to communicate with virtual storage and virtual networks both within and across Data Center sites.  For networking within the Data Center the potential value of this new model comes from: lowering capital expenses through higher utilization (server, storage and network), and converged fabrics; and lowering operational expenses through automated and integrated management that optimizes Data Center infrastructure.  At the edge of the Data Center, virtual networking (e.g. MPLS, VPLS) also offers tremendous savings associated with combining networks, especially across the wide area network with its expensive WAN links.  


9:00 - 9:30

On-site registration

9:30 - 9:45

Introduction and Opening Remarks
R. Recio (IBM, USA)

9:45 - 10:45

WS 1 – Ethernet Virtual Bridging

Virtual Switching in an Era of Advanced Edges (paper)
Justin Pettit, Jesse Gross, Ben Pfaff, Martin Casado (Nicira Networks, USA) and Simon Crosby (Citrix Systems, USA)

A Case for VEPA: Virtual Ethernet Port Aggregator (paper)

Paul Congdon, Prasant Mohapatra (University of California, Davis, USA) and Anna Fischer (HP, UK)

10:45 - 11:00               

Coffee Break

11:00 - 12:00               

WS 2 – Automation of Ethernet Virtual Bridging

VMready - Implementation of a Profile Based Virtual Port Switching Framework (paper)
Vijoy Pandey & Jay Kidambi (Blade Network Technologies, USA)

Ethernet Virtual Bridging Automation Use Cases (paper)
Renato Recio, Rakesh Sharma (IBM, USA) & Sivakumar Krishnasamy (IBM, India)

12:00 - 13:30               

Lunch Break

13:30 - 15:00               

WS 3 – Forwarding Approaches for Data Center Networks

Introduction to Port Extension (IEEE P802.1Qbh) (paper)
Joe Pelissier (Cisco, USA) & Rene Raeber (Cisco, Switzerland)

Comparative Evaluation of CEE-based Switch Adaptive Routing (paper)
Daniel Crisan, Mitch Gusat & Cyriel Minkenberg (IBM, Switzerland)

15:00 - 15:15               

Coffee Break

15:15 - 16:45               

WS 4 – Management and Optimization of Data Center Network

Implementation and Evaluation of Network Management System to Reduce Management Cost Caused by Server Virtualization (paper)
Masahiro Yoshizawa, Toshiaki Tarui & Hideki Okita (Hitachi, Japan)

Faster and Efficient VM Migrations for Improving SLA and ROI in Cloud Infrastructures (paper)
Sujal Das (Mellanox, USA), Michael Kagan (Mellanox, Israel) & Diego Crupnicoff (Mellanox, Argentina)



Organized together with ITC 22, the second DC CAVES workshop is intended to serve as a forum to present the latest work by researchers and developers from both academia and industry. The workshop focuses on the technologies that will be needed to meet the demands of the new virtual and converged compute model described above. For each of these technologies the workshop will analyze the problem and solution alternatives.

The two major topics of interest are server virtualization infrastructure and physical switch virtualization infrastructure:

Server virtualization infrastructure
Server Input/Output Virtualization enhancements
Automation of virtual server network identity management
Enhanced virtual server network access and traffic controls
Networking technologies to enable server migration within an entire DC
Networking technologies to enable virtual server migration across DCs
Security plane infrastructure virtualization (e.g. Enhanced Virtual Appliances running in Server Virtual Machines)
Enhancements to virtual Ethernet switches used by virtualization intermediaries (e.g. Hypervisors)
IEEE 802.1Qbg Ethernet Virtual Bridging mechanisms (Virtual Ethernet Bridging, Virtual Ethernet Port Aggregation, Virtual Station Interfaces, Trivial TLV Transport Protocol)
IEEE 802.1Qbh Bridge Port Extension mechanisms
Offloading of virtual switching to external fabrics
Converged fabric reference services architectures
Future directions

Virtual & converged fabric infrastructure
Overall network virtualization & performance
Layer-2/3/+ fabric virtualization technologies (e.g. MPLS, VPLS, Switch Stacking and mechanisms that partition a single physical switch into multiple virtual switches)
Enhancements to convergence technologies (e.g. CEE, DCBX, iSCSI, NAS, FCoE, FC over MPLS)
Performance evaluation of converged iSCSI, NAS and emerging FCoE fabrics
Converged fabric security considerations
Transport stack options converging Inter-Process Communication (IPC) traffic
Additional Ethernet Quality of Service enhancements needed for converged environments
Performance and fault event management for converged fabrics
Converged fabric management infrastructure
Converged fabric reference services architectures
Future directions
Performance evaluation of RDMA over Ethernet technologies

Paper Submission

We invite submissions of technical papers, position papers, and case studies relevant to the workshop. Submission implies the willingness of at least one of the authors to present the paper and register. Submission should include on the front page the authors’ name, affiliations, addresses, email addresses, and phone numbers.

Please submit a full paper not exceeding 8 pages in IEEE in two-column 10pt PDF or Postscript format, page-numbered and suitable for printing on 8.5”x11” paper with at least 1 inch margin all around. Please submit the full paper for consideration to this workshop to Renato Recio ( by email.  

Important dates

Deadline for submission
Notification of acceptance           
Camera ready papers
Workshop date

May 25, 2010
June 19, 2010
July 18, 2010
September 6, 2010

Registration fees
Workshop registration and payment will be managed by ITC (specifics will be announce at a later date)
150 Euros for workshop only.
100 Euros if combined with ITC registration.

Workshop Program Chair: Renato Recio, IBM

Program Committee Members
Papadimitriou Dimitri, Alcatel Lucent, Belgium
Uri Elzur, Broadcom Corporation, USA
Mitch Gusat, IBM Zurich Research Laboratory, Switzerland
David Hausheer, Berkeley, USA, and Univ. of Zurich, Switzerland
Marco Hoffmann, Nokia Siemens Networks, Germany
Mike Kagan, Mellanox, Israel
Srikanth Kilaru, Juniper, USA
Mike Krause, Hewlett-Packard Company, USA
Michael Menth, University of Wuerzburg, Germany
Dhabaleswar Panda, Ohio State University, USA
Vijoy Pandey, Blade Network Technologies, USA
Joe Pelissier, Cisco Systems, USA
Suresh Vobbilisetty, Brocade, USA
Manoj Wadekar, QLogic, USA