Period: 1Q11 '''I. Major accomplishments''' OpenFlow support in PEN experiments. '''A. Milestones achieved''' Gave a demo and a tutorial at GEC10. '''B. Deliverables made''' * OpenFlow enabled OpenVZ containers * GEC10 tutorial web site * GEC10 tutorial handouts '''II. Description of work performed during last quarter''' '''A. Activities and findings''' In order to achieve OpenFlow support we had to modify the approach to interface allocation within the host PEN image. By default interface allocation predominantly utilizes virtual interfaces and bridging. Unfortunately, the Linux Bridge is incompatible with OpenFlow. The new approach adjusts the scripts to assign VLAN tagged interfaces directly to virtual containers. This enables virtual containers which can be utilized as OpenFlow switches. '''B. Project participants''' Tim Ficarra, Eric Murray, David Cote, Bonie Rosario, Yan Luo '''C. Publications (individual and organizational)''' '''D. Outreach activities''' Gave a demo and a tutorial in GEC10. '''E. Collaborations''' '''F. Other Contributions'''