From the course: Practical Software-Defined Networking: 1 SDN and OpenFlow Quick Start

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OpenFlow captures using Wireshark, part 1

OpenFlow captures using Wireshark, part 1

From the course: Practical Software-Defined Networking: 1 SDN and OpenFlow Quick Start

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OpenFlow captures using Wireshark, part 1

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(airy electronic music) (lively chimes) - [David] This is one of multiple videos discussing OpenDaylight, DACA, and Software Defined Networking. One of the great things about being able to virtualize an OpenFlow network in GNS3 is that you can use Wireshark to see what's going on. So in this example, I've got OpenDaylight running on the Ubuntu host I've connected to the Ubuntu OpenDaylight controller from a Firefox client, but no OpenFlow switches have currently registered. And that's because I've turned off these two OpenFlow switches. So what I'll do is start a Wireshark capture on the link to the OpenDaylight controller. I'll filter for OpenFlow version four which is OpenFlow version 1.3. I'll start up both these OpenVSwitch switches and open up a console to the first switch. And there it is. And then I'll open up a console to the second switch. So there are two consoles. Ovs-vsctl, or vsctl show, shows us that the first switch is connected to the controller. Notice is_connected is…

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