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<p class="MsoNormal">Hi Alioune,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Which OVS version are you using? <o:p></o:p></p>
<p class="MsoNormal">Try openvswitch version 2.4.0 and restart the openvswitch-server before installing the devstack.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Cathy<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Alioune [mailto:balioune3@gmail.com]
<br>
<b>Sent:</b> Friday, June 03, 2016 9:07 AM<br>
<b>To:</b> openstack-dev@lists.openstack.org<br>
<b>Cc:</b> Cathy Zhang<br>
<b>Subject:</b> [openstack-dev][neutron][SFC]<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal">Probleme with OpenStack SFC<o:p></o:p></p>
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<div>
<p class="MsoNormal">Hi all, <o:p></o:p></p>
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<p class="MsoNormal">I've installed Openstack SFC with devstack and all module are corretly running except the neutron L2-agent<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal">After a "screen -rd", it seems that there is a conflict between l2-agent and SFC (see trace bellow).<o:p></o:p></p>
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<div>
<p class="MsoNormal">I solved the issue with "sudo ovs-vsctl set bridge br protocols=OpenFlow10,OpenFlow11,OpenFlow12,OpenFlow13" on all openvswitch bridge (br-int, br-ex, br-tun and br-mgmt0).<o:p></o:p></p>
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<div>
<p class="MsoNormal">I would like to know:<o:p></o:p></p>
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<div>
<p class="MsoNormal"> - If someone knows why this error arrises ?<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> - is there another way to solve it ?<o:p></o:p></p>
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<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Regards,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">2016-06-03 12:51:56.323 WARNING neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] OVS is dead. OVSNeutronAgent will keep running and checking OVS status periodically.<o:p></o:p></p>
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<p class="MsoNormal">2016-06-03 12:51:56.330 DEBUG neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] Agent rpc_loop - iteration:4722 completed. Processed ports statistics: {'regular': {'updated':
0, 'added': 0, 'removed': 0}}. Elapsed:0.086 from (pid=12775) loop_count_and_wait /opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py:1680<o:p></o:p></p>
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<p class="MsoNormal">2016-06-03 12:51:58.256 DEBUG neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] Agent rpc_loop - iteration:4723 started from (pid=12775) rpc_loop /opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py:1732<o:p></o:p></p>
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<p class="MsoNormal">2016-06-03 12:51:58.258 DEBUG neutron.agent.linux.utils [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] Running command (rootwrap daemon): ['ovs-ofctl', '-O openflow13', 'dump-flows', 'br-int', 'table=23'] from (pid=12775) execute_rootwrap_daemon
/opt/stack/neutron/neutron/agent/linux/utils.py:101<o:p></o:p></p>
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<div>
<p class="MsoNormal">2016-06-03 12:51:58.311 ERROR neutron.agent.linux.utils [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None]<o:p></o:p></p>
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<div>
<p class="MsoNormal">Command: ['ovs-ofctl', '-O openflow13', 'dump-flows', 'br-int', 'table=23']<o:p></o:p></p>
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<div>
<p class="MsoNormal">Exit code: 1<o:p></o:p></p>
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<div>
<p class="MsoNormal">Stdin:<o:p></o:p></p>
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<p class="MsoNormal">Stdout:<o:p></o:p></p>
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<p class="MsoNormal">Stderr: 2016-06-03T12:51:58Z|00001|vconn|WARN|unix:/var/run/openvswitch/br-int.mgmt: version negotiation failed (we support version 0x04, peer supports version 0x01)<o:p></o:p></p>
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<p class="MsoNormal">ovs-ofctl: br-int: failed to connect to socket (Broken pipe)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 ERROR networking_sfc.services.sfc.common.ovs_ext_lib [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None]<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Command: ['ovs-ofctl', '-O openflow13', 'dump-flows', 'br-int', 'table=23']<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Exit code: 1<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Stdin:<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Stdout:<o:p></o:p></p>
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<div>
<p class="MsoNormal">Stderr: 2016-06-03T12:51:58Z|00001|vconn|WARN|unix:/var/run/openvswitch/br-int.mgmt: version negotiation failed (we support version 0x04, peer supports version 0x01)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">ovs-ofctl: br-int: failed to connect to socket (Broken pipe)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Traceback (most recent call last):<o:p></o:p></p>
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<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib File "/opt/stack/networking-sfc/networking_sfc/services/sfc/common/ovs_ext_lib.py", line 125, in run_ofctl<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib process_input=process_input)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib File "/opt/stack/neutron/neutron/agent/linux/utils.py", line 159, in execute<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib raise RuntimeError(m)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib RuntimeError:<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Command: ['ovs-ofctl', '-O openflow13', 'dump-flows', 'br-int', 'table=23']<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Exit code: 1<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Stdin:<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Stdout:<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Stderr: 2016-06-03T12:51:58Z|00001|vconn|WARN|unix:/var/run/openvswitch/br-int.mgmt: version negotiation failed (we support version 0x04, peer supports version
0x01)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib ovs-ofctl: br-int: failed to connect to socket (Broken pipe)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.335 ERROR networking_sfc.services.sfc.common.ovs_ext_lib [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] Unable to execute ['ovs-ofctl', '-O openflow13', 'dump-flows', 'br-int', 'table=23'].<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.337 WARNING neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] OVS is dead. OVSNeutronAgent will keep running and checking OVS status periodically.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">2016-06-03 12:51:58.341 DEBUG neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] Agent rpc_loop - iteration:4723 completed. Processed ports statistics: {'regular': {'updated':
0, 'added': 0, 'removed': 0}}. Elapsed:0.085 from (pid=12775) loop_count_and_wait /opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py:1680<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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