Outdated command in OpenFlow tutorial

[Flogex]

I was going through the OpenFlow tutorial today and had difficulties with the section Start Controller and view Startup messages in Wireshark.

The command controller in $sudo controller ptcp:6633 could not be found. For me, the correct command is ovs-testcontroller, but this depends on the distro according to this comment.

Furthermore, it might be worth mentioning that the controller process runs in the foreground after executing the command. I was waiting for some message to appear and it took me some time to realize that the controller was already in ready state.

It would be great if you could adjust the tutorial accordingly.