L8

17 Outubro 2025, 16:00 • José André Moura

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The current laboratorial lecture taught how to deploy an SDN-based networked system formed by a single SDN controller (i.e. Ryu), one software-based OpenvSwitch (OVS), and several hosts interconnected through the software-based switch OVS. The current lecture also taught how the OpenFlow (v1.0) protocol allows the Ryu SDN controller to control in distinct ways the switch OVS and consequently the network operation. Finally, the applicants learn how to make some code changes in the controller for blocking some network traffic.

L7

17 Outubro 2025, 14:30 • José André Moura

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OpenFlow Protocol. Ryu SDN controller. Writing a Ryu application. Mininet network emulator. Next laboratory.

L6

10 Outubro 2025, 16:00 • José André Moura

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The current laboratorial class taughts how to locally configure the necessary control rules in a programmable switch for controlling how the traffic is forwarded through the network infrastructure. The topology will be tested in diverse scenarios. The results of each test should be analyzed using captured traffic via wireskark and some suggested shell commands.

L5

10 Outubro 2025, 14:30 • José André Moura

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Software-based switch: OpenvSwitch. Switch management. Switch control. Switch operation controlled locally by local flow rules. Briefly explanation about the next laboratory session.

L4

3 Outubro 2025, 16:00 • José André Moura

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The current laboratory acting as a continuation practical session of the last week laboratory, it has the next main learning goals: learn how to create and remove an emulated network topology, using script files; and learn how to emulate more realistic network conditions, such as latency and jitter, using the Linux Traffic Control (tc) tool.