I would like to get your advice about the best open-source SDN controller available. I want to implement and test some ideas I have in my research so I need to use a simulation such as Mininet. In ...

I am trying to use the POX controller to control the path of flows. I know that the Open vSwitch will choose the forwarding rules that have the highest priority. But what will happen if I insert a ...

I have a network similar to the one in the picture below. This is the python code for the network: net.addLink(s1, s2) net.addLink(s2, s3) net.addLink(s3, s4) net.addLink(s4, s1) net.addLink(s...

I am a newbie to OpenFlow and SDN. I need help setting up the Ryu OpenFlow controller on a Ubuntu or Debian machine and understand a basic Ryu application. Note: this question already has an answe...

If I am setting up an switch device to be controlled via OpenFlow, what are the conditions to use ovs-dpctl versus ovs-vsctl? The man page for ovs-dpctl says to use ovs-vsctl if ovs-vswitchd is use...

I'm trying to dive into these new concepts, SDN and OpenFlow. One thing that is not clear to me, is how the traditional routing (OSPF, BGP etc.) done in SDN, or it is completely gone and replaced w...

This may not be the typical stackoverflow question. A colleague of mine has been speculating that flow-based routing is going to be the next big thing in networking. Openflow provides the technolo...