Hi Alioune, Which OVS version are you using? Try openvswitch version 2.4.0 and restart the openvswitch-server before installing the devstack.
Cathy From: Alioune [mailto:baliou...@gmail.com] Sent: Friday, June 03, 2016 9:07 AM To: openstack-dev@lists.openstack.org Cc: Cathy Zhang Subject: [openstack-dev][neutron][SFC] Probleme with OpenStack SFC Hi all, I've installed Openstack SFC with devstack and all module are corretly running except the neutron L2-agent After a "screen -rd", it seems that there is a conflict between l2-agent and SFC (see trace bellow). 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). I would like to know: - If someone knows why this error arrises ? - is there another way to solve it ? Regards, 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. 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 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 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 2016-06-03 12:51:58.311 ERROR neutron.agent.linux.utils [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] Command: ['ovs-ofctl', '-O openflow13', 'dump-flows', 'br-int', 'table=23'] Exit code: 1 Stdin: Stdout: 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) ovs-ofctl: br-int: failed to connect to socket (Broken pipe) 2016-06-03 12:51:58.323 ERROR networking_sfc.services.sfc.common.ovs_ext_lib [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] Command: ['ovs-ofctl', '-O openflow13', 'dump-flows', 'br-int', 'table=23'] Exit code: 1 Stdin: Stdout: 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) ovs-ofctl: br-int: failed to connect to socket (Broken pipe) 2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Traceback (most recent call last): 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 2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib process_input=process_input) 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 2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib raise RuntimeError(m) 2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib RuntimeError: 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'] 2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Exit code: 1 2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Stdin: 2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Stdout: 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) 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) 2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib 2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib 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']. 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. 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
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