Hi Yuan, I've had this error as well and it took me a while to figure out how to solve it. The error is caused due a socket from another program that is already bound to the portnumber commonly used by OpenFlow controllers (port 6633). In my case I had installed both openvswitch and Ryu on the same server. The problem is with the package openvswitch-controller, that has been installed along the actual (openv)switch. Since the openvswitch-controller is automatically started when openvswitch is started and binds to the openflow controller port. To find out which program is bound to the port, use "netstat -tulpen".
In my case, I did not need the openvswitch-controller package, so I removed it by using "apt-get remove openvswitch-controller". The error hasn't occured since then. Hopefully this will solve your problem with Ryu as well and you can start exploring the magic of Ryu. Good luck! Best regards, Arjen Noordhuis Yuan <[email protected]> , 5/4/2014 10:18 AM: Hi guys, I was executing the traffic monitor as the Ryubook suggested on page 24. However, I confronted error report as the pic showed below. I have been trying to solve it for 2 days. Python and SDN are totally new for me. I really need help from you. Plz help me!!!! Thanks,Yuan ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
[email protected]
Description: Binary data
------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs
_______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
