This document discusses simulating switch traffic in a virtualized OpenFlow testbed using the FlowSim simulator. It provides details on experiments conducted in a related paper that analyzed the performance of OpenFlow controllers and the impact of delay on ICMP, TCP, and UDP traffic. The simulation will focus on simulating the traffic through switch S2.

1. FlowSim simulation
● Simulation of a switch from the paper "Performance
evaluation of OpenFlow controllers for network
virtualization", using the web browser simulator FlowSim
(flowsim.flowgrammable.org)

2. Paper abstract ...
● This paper aims to investigate OpenFlow performance in a virtualized
testbed
● They used open-source virtualized controllers (Trema[5], Floodlight[6] and
NOX[7])
● Was analized how delay impacts ICMP, TCP and UDP traffic.
● They used Open vSwitch[8] as a software switch, and Mininet[9] as
emulation platform.

3. About the paper experiment...
● Experiment topology:

4. About the paper experiment...
ICMP test
source: Test TX
destination: H1, H2, H3, H4
TCP test
source: Text TX
destination: Text RX
UDP test
source: Text TX
destination: Text RX

5. What we are going to do?...
>> Simulate the Switch S2 traffic! <<

6. What we are going to do...

7. What we are going to do...

8. What we are going to do...

9. References
[1] Turull, Daniel, Markus Hidell, and Peter Sjodin. "Performance Evaluation of Openflow Controllers
for Network Virtualization." High Performance Switching and Routing (HPSR), 2014 IEEE 15th
International Conference on Vancouver, BC, 2014, 50-56.
[2] Kreutz, Diego, Fernando M. V. Ramos, Paulo Verissimo, Christian Esteve Rothenberg, Siamak
Azodolmolky, and Steve Uhlig. "Software-Defined Networking: A Comprehensive Survey."
Communications Surveys & Tutorials 16, no. 3 (2014): 1617-634.
[3] "Release Notes." Flowsim - OpenFlow Dataplane Simulator. Accessed April 23, 2015. https:
//flowsim.flowgrammable.org/#/documentation.
[4] "Flowsim Tutorials." Youtube. March 17, 2015. Accessed April 23, 2015. https://www.youtube.
com/playlist?list=PLhzVPXHeGqO53edYpqqVzT6w0i9zIOtNR.

10. References
[5] “Trema. an open source modular framework for developing openflow controllers in ruby/c,” https:
//github.com/trema.
[6] “Floodlight OpenFlow Controller,” http://floodlight.openflowhub.org/.
[7] N. Gude, T. Koponen, J. Pettit, B. Pfaff, M. Casado, N. McKeown, and S. Shenker, “NOX: towards
an operating system for networks,” SIGCOMM Comput. Commun. Rev., vol. 38, pp. 105–110, Jul.
2008.
[8] U. Pettit, J. Gross, B. Pfaff, M. Casado, and S. Crosby, “Virtual switching in an era of advanced
edges,” in 2nd Workshop on Data Center - Converged and Virtual Ethernet Switching (DC CAVES),
Sep. 2010. [Online]. Available: http://openvswitch.org/papers/dccaves2010.pdf

11. References
[9] N. Handigol, B. Heller, V. Jeyakumar, B. Lantz, and N. McKeown, “Reproducible network
experiments using container-based emulation,” in Proceedings of the 8th international conference on
Emerging networking experiments and technologies - CoNEXT ’12. New York, New York, USA: ACM
Press, Dec. 2012, p. 253.
[10] "Documentation." Hping. Accessed April 23, 2015. http://www.hping.org/documentation.php.