So, no - I don't think so. Based on the error message, it looks as though something in your environment is trying to start up the OpenFlow controller code in Ryu - and finding the controller port to already be bound. The shutdown() method you're calling in the BGP protocol code wouldn't even begin to try doing that.
I would ensure (using lsof) that you don't have another controller binding the OpenFlow ports, and causing thereby causing confusion as to what's actually doing the work. Best, Victor -- Victor J. Orlikowski <> vjo@[cs.]duke.edu<http://duke.edu> On Aug 20, 2016, at 11:34 AM, Paulo Sérgio <paulop...@hotmail.com<mailto:paulop...@hotmail.com>> wrote: So, that shutdown method is trying to close something that simple switch class is using, right?
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