title: How can i "activate" the port disabled/blocked by STP using OpenFlow and Ryu controller, so i could forward packets through it?
body: <p>I'm looking for the way to send packets using OpenFlow 1.3 protocol in SDN network in a topology with loop. My choice of controller is Ryu. To identify the hosts i'm catching ARP packets and to avoid floodstorm i'm using <a href="http://osrg.github.io/ryu-book/en/html/spanning_tree.html" rel="nofollow">STP</a>. <br></p>
  
  <p>My problem is that when the path computed by my routing algorithm contains ports which are blocked/disabled by STP the connection can't be accomplished (hosts cannot ping each other). <br></p>
  
  <p>After thinking it over i reached a conclusion that i need to "activate" disabled/blocked ports that are on my rounting path. But i cannot find any way to do that.. <br></p>
  
  <p>So now's the question: How can i achieve my solution? Is there any way to "activate" the ports in Ryu? Or if my solution is unachievable is there any other method i can use to solve this problem?</p>