Hi Ben, Thanks for your reply. I confirmed that it is the master and ovs-ofctl should be the latest one. OFP 1.2 is supported based on the output below.
tsi@tsi-sdn-1:~/openvswitch$ sudo ovs-ofctl -V ovs-ofctl (Open vSwitch) 1.9.90 Compiled Jan 22 2013 16:35:38 OpenFlow versions 0x1:0x4 <<<<<< Does it mean OVS supports 1.0, 1.1, 1.2 and 1.3? tsi@tsi-sdn-1:~/openvswitch$ git branch -a branch-1.4 branch-1.6 branch-1.7 branch-1.8 branch-1.9 * master <<<<< I'm using master. remotes/origin/HEAD -> origin/master remotes/origin/branch-1.1 I also found out the "version negotiation failed" message is actually caused by the command "sudo ovs-vsctl set Bridge br0 protocols=OpenFlow12". See below: Any clue on what the problem is supposed to be? I guess my bigger question is which OVS version should I use to support OpenFlow 1.2? I tried branch-1.4, 1.8, 1.9, all of them use OFP1.0 and do not have the Set command to set OFP version. Only 1.9.90 (the master) seem to have the ability to support OFP1.2 but it doesn't work as expected. tsi@tsi-sdn-1:~$ sudo ovs-vsctl clear Bridge br0 protocols tsi@tsi-sdn-1:~$ tsi@tsi-sdn-1:~$ sudo ovs-ofctl dump-flows br0 NXST_FLOW reply (xid=0x4): tsi@tsi-sdn-1:~$ sudo ovs-vsctl set Bridge br0 protocols=OpenFlow12 tsi@tsi-sdn-1:~$ sudo ovs-ofctl dump-flows br0 2013-01-22T21:44:44Z|00001|vconn|WARN|unix:/usr/local/var/run/openvswitc h/br0.mgmt: version negotiation failed (we support version 0x01, peer supports version 0x03) ovs-ofctl: br0: failed to connect to socket (Broken pipe) tsi@tsi-sdn-1:~$ Thanks, Steve -----Original Message----- From: Ben Pfaff [mailto:b...@nicira.com] Sent: Tuesday, January 22, 2013 11:12 AM To: Liu, Steve Cc: discuss@openvswitch.org Subject: Re: [ovs-discuss] Openvswitch Openflow version mismatch On Tue, Jan 22, 2013 at 10:53:17AM -0500, s....@t-systems.com wrote: > I'm having some troubles getting ryu openflow controller to work with > OVS. > > > > I'm running ryu controller 1.2 python sample script. On OVS side I use > the latest version 1.9.90. I was able to use "ovs-vsctl set Bridge br0 > protocols=OpenFlow12" to add the OF12 support on the OVS. However when > I run the controller ryu script, OVS complained version negotiation > failed. I'm not sure why OVS said it support version 0x01, not version > 0x03 even though I have enabled OpenFlow12 support there. Also from > wireshark, both sides did claim version 0x03 in their OFP hello packets. My guess, from the transcript you provided, is that the ovs-ofctl you're running is too old to support version 1.2. Make sure you're using ovs-ofctl from OVS "master". I don't have a guess why OVS and Ryu would refuse to negotiate 1.2. I don't know Ryu. _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
