[openstack-dev] [neutron][SFC]
Alioune
balioune3 at gmail.com
Thu Jun 9 14:57:12 UTC 2016
Mohan,
I would like to redirect all http flows in tenant network to the port-chain
and according to your explanation I do specify the neutron-port of source
vm in the classifier.
is there a generic way to to put into the chain all traffc going to a web
server the tenant network ? (to avoide setting neutron-port of source vm)
Regards,
On 9 June 2016 at 16:32, Mohan Kumar <nmohankumar1011 at gmail.com> wrote:
> Alioune,
>
> logical-source-port is egress neutron-port of source vm , typically
> flow-classifier will classifies packets coming to this neutron port and
> forwards to the rest of port-chain if other classifier conditions are
> matches.
>
> Thanks.,
> Mohankumar.N
>
>
>
> On Thu, Jun 9, 2016 at 7:20 PM, Alioune <balioune3 at gmail.com> wrote:
>
>> Thanks Mohan,
>>
>> After setting service_plugins and adding sfc tables to neutrondb, I can
>> create port-pair, port-pair-group but classifier creation still claim a
>> logical-source-port parameter.
>>
>> neutron flow-classifier-create --ethertype IPv4 --source-ip-prefix
>> 55.55.55.2/32 --destination-ip-prefix 55.55.55.9/32 --protocol tcp
>> --source-port 22:22 --destination-port 1:65000 FC1
>> ERROR:
>> neutron flow-classifier-create: error: argument --logical-source-port is
>> required
>> Try 'neutron help flow-classifier-create' for more information.
>>
>> Please someone can explain what does --logical-source-port correspond to ?
>> Does the classifier require port-create like SF ?
>>
>> Regards,
>>
>>
>> On 9 June 2016 at 09:21, Mohan Kumar <nmohankumar1011 at gmail.com> wrote:
>>
>>> Alioune,
>>>
>>> networking-sfc resources not installed / not reachable , If installation
>>> is okay, Possibly you may missed service_plugins entry in *neutron.conf
>>> *( in case of manual networking-sfc installation)
>>>
>>> it should be ,
>>>
>>> *service_plugins =
>>> neutron.services.l3_router.l3_router_plugin.L3RouterPlugin,networking_sfc.services.flowclassifier.plugin.FlowClassifierPlugin,networking_sfc.services.sfc.plugin.SfcPlugin*
>>>
>>> *and restart q-svc services in screen -x *
>>>
>>> *Thanks.,*
>>> *Mohankumar.N *
>>>
>>> On Thu, Jun 9, 2016 at 12:58 AM, Alioune <balioune3 at gmail.com> wrote:
>>>
>>>> I've switched from devstack to a normal deployment of openstack/mitaka
>>>> and neutron-l2 agent is working fine with sfc. I can boot instances, create
>>>> ports.
>>>> However I can not create neither flow-classifier nor port-pair ...
>>>>
>>>> neutron flow-classifier-create --ethertype IPv4 --source-ip-prefix
>>>> 22.1.20.1/32 --destination-ip-prefix 172.4.5.6/32 --protocol tcp
>>>> --source-port 23:23 --destination-port 100:100 FC1
>>>>
>>>> returns: neutron flow-classifier-create: error: argument
>>>> --logical-source-port is required
>>>> Try 'neutron help flow-classifier-create' for more information.
>>>>
>>>> neutron port-pair-create --ingress=p1 --egress=p2 PP1
>>>> 404 Not Found
>>>>
>>>> The resource could not be found.
>>>>
>>>> Neutron server returns request_ids:
>>>> ['req-1bfd0983-4a61-4b32-90b3-252004d90e65']
>>>>
>>>> neutron --version
>>>> 4.1.1
>>>>
>>>> p1,p2,p3,p4 have already been created, I can ping instances attached to
>>>> these ports.
>>>> Since I've not installed networking-sfc, are there additional config to
>>>> set in neutron config files ?
>>>> Or is it due to neutron-client version ?
>>>>
>>>> Regards
>>>>
>>>> On 8 June 2016 at 20:31, Mohan Kumar <nmohankumar1011 at gmail.com> wrote:
>>>>
>>>>> neutron agent not able to fetch details from ovsdb . Could you check
>>>>> below options 1.restart ovsdb-server and execute ovs_vsctl list-br 2.
>>>>> execute ovs- vsctl list-br manually and try to check error.
>>>>>
>>>>> 3. Could be ovs cleanup issue , please check the output of sudo
>>>>> service openvswitch restart and /etc/init.d/openvswich** restart , both
>>>>> should be same
>>>>>
>>>>> Thanks.,
>>>>> Mohankumar.N
>>>>> On Jun 7, 2016 6:04 PM, "Alioune" <balioune3 at gmail.com> wrote:
>>>>>
>>>>>> Hi Mohan/Cathy
>>>>>> I've installed now ovs 2.4.0 and followed
>>>>>> https://wiki.openstack.org/wiki/Neutron/ServiceInsertionAndChaining but
>>>>>> I got this error :
>>>>>> Regards,
>>>>>>
>>>>>> + neutron-ovs-cleanup
>>>>>> 2016-06-07 11:25:36.465 22147 INFO neutron.common.config [-] Logging
>>>>>> enabled!
>>>>>> 2016-06-07 11:25:36.468 22147 INFO neutron.common.config [-]
>>>>>> /usr/local/bin/neutron-ovs-cleanup version 7.1.1.dev4
>>>>>> 2016-06-07 11:25:36.505 22147 ERROR neutron.agent.ovsdb.impl_vsctl
>>>>>> [-] Unable to execute ['ovs-vsctl', '--timeout=10', '--oneline',
>>>>>> '--format=json', '--', 'list-br'].
>>>>>> 2016-06-07 11:25:36.505 22147 ERROR neutron.agent.ovsdb.impl_vsctl
>>>>>> Traceback (most recent call last):
>>>>>> 2016-06-07 11:25:36.505 22147 ERROR neutron.agent.ovsdb.impl_vsctl
>>>>>> File "/opt/stack/neutron/neutron/agent/ovsdb/impl_vsctl.py", line 63, in
>>>>>> run_vsctl
>>>>>> 2016-06-07 11:25:36.505 22147 ERROR neutron.agent.ovsdb.impl_vsctl
>>>>>> log_fail_as_error=False).rstrip()
>>>>>> 2016-06-07 11:25:36.505 22147 ERROR neutron.agent.ovsdb.impl_vsctl
>>>>>> File "/opt/stack/neutron/neutron/agent/linux/utils.py", line 159, in execute
>>>>>> 2016-06-07 11:25:36.505 22147 ERROR neutron.agent.ovsdb.impl_vsctl
>>>>>> raise RuntimeError(m)
>>>>>> 2016-06-07 11:25:36.505 22147 ERROR neutron.agent.ovsdb.impl_vsctl
>>>>>> RuntimeError:
>>>>>> 2016-06-07 11:25:36.505 22147 ERROR neutron.agent.ovsdb.impl_vsctl
>>>>>> Command: ['sudo', 'ovs-vsctl', '--timeout=10', '--oneline',
>>>>>> '--format=json', '--', 'list-br']
>>>>>> 2016-06-07 11:25:36.505 22147 ERROR neutron.agent.ovsdb.impl_vsctl
>>>>>> Exit code: 1
>>>>>> 2016-06-07 11:25:36.505 22147 ERROR neutron.agent.ovsdb.impl_vsctl
>>>>>> 2016-06-07 11:25:36.505 22147 ERROR neutron.agent.ovsdb.impl_vsctl
>>>>>> 2016-06-07 11:25:36.512 22147 CRITICAL neutron [-] RuntimeError:
>>>>>> Command: ['sudo', 'ovs-vsctl', '--timeout=10', '--oneline',
>>>>>> '--format=json', '--', 'list-br']
>>>>>> Exit code: 1
>>>>>>
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron Traceback (most recent
>>>>>> call last):
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron File
>>>>>> "/usr/local/bin/neutron-ovs-cleanup", line 10, in <module>
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron sys.exit(main())
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron File
>>>>>> "/opt/stack/neutron/neutron/cmd/ovs_cleanup.py", line 89, in main
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron ovs_bridges =
>>>>>> set(ovs.get_bridges())
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron File
>>>>>> "/opt/stack/neutron/neutron/agent/common/ovs_lib.py", line 132, in
>>>>>> get_bridges
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron return
>>>>>> self.ovsdb.list_br().execute(check_error=True)
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron File
>>>>>> "/opt/stack/neutron/neutron/agent/ovsdb/impl_vsctl.py", line 83, in execute
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron txn.add(self)
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron File
>>>>>> "/opt/stack/neutron/neutron/agent/ovsdb/api.py", line 70, in __exit__
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron self.result =
>>>>>> self.commit()
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron File
>>>>>> "/opt/stack/neutron/neutron/agent/ovsdb/impl_vsctl.py", line 50, in commit
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron res =
>>>>>> self.run_vsctl(args)
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron File
>>>>>> "/opt/stack/neutron/neutron/agent/ovsdb/impl_vsctl.py", line 70, in
>>>>>> run_vsctl
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron ctxt.reraise = False
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron File
>>>>>> "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 204,
>>>>>> in __exit__
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron
>>>>>> six.reraise(self.type_, self.value, self.tb)
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron File
>>>>>> "/opt/stack/neutron/neutron/agent/ovsdb/impl_vsctl.py", line 63, in
>>>>>> run_vsctl
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron
>>>>>> log_fail_as_error=False).rstrip()
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron File
>>>>>> "/opt/stack/neutron/neutron/agent/linux/utils.py", line 159, in execute
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron raise RuntimeError(m)
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron RuntimeError:
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron Command: ['sudo',
>>>>>> 'ovs-vsctl', '--timeout=10', '--oneline', '--format=json', '--', 'list-br']
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron Exit code: 1
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron
>>>>>> 2016-06-07 11:25:36.512 22147 ERROR neutron
>>>>>> + exit_trap
>>>>>> + local r=1
>>>>>> ++ jobs -p
>>>>>> + jobs=
>>>>>> + [[ -n '' ]]
>>>>>> + kill_spinner
>>>>>> + '[' '!' -z '' ']'
>>>>>> + [[ 1 -ne 0 ]]
>>>>>> + echo 'Error on exit'
>>>>>> Error on exit
>>>>>> + generate-subunit 1465296797 1939 fail
>>>>>> + [[ -z /opt/stack/logs ]]
>>>>>> + /home/alioune/devstack/tools/worlddump.py -d /opt/stack/logs
>>>>>> World dumping... see /opt/stack/logs/worlddump-2016-06-07-112537.txt
>>>>>> for details
>>>>>> + exit 1
>>>>>>
>>>>>>
>>>>>> On 7 June 2016 at 12:08, Mohan Kumar <nmohankumar1011 at gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Hi shihanzhang / Alioune ,
>>>>>>>
>>>>>>> *your kernel (check with uname -r ) should support OVS version ,
>>>>>>> below table compare kern*el versions and corresponding Open vSwitch
>>>>>>> release support
>>>>>>>
>>>>>>> | Open vSwitch | Linux kernel
>>>>>>> |:------------:|:-------------:
>>>>>>> | 1.4.x | 2.6.18 to 3.2
>>>>>>> | 1.5.x | 2.6.18 to 3.2
>>>>>>> | 1.6.x | 2.6.18 to 3.2
>>>>>>> | 1.7.x | 2.6.18 to 3.3
>>>>>>> | 1.8.x | 2.6.18 to 3.4
>>>>>>> | 1.9.x | 2.6.18 to 3.8
>>>>>>> | 1.10.x | 2.6.18 to 3.8
>>>>>>> | 1.11.x | 2.6.18 to 3.8
>>>>>>> | 2.0.x | 2.6.32 to 3.10
>>>>>>> | 2.1.x | 2.6.32 to 3.11
>>>>>>> | 2.3.x | 2.6.32 to 3.14
>>>>>>> | 2.4.x | 2.6.32 to 4.0
>>>>>>> | 2.5.x | 2.6.32 to 4.3
>>>>>>>
>>>>>>> http://openvswitch.org/support/dist-docs/FAQ.md.txt (
>>>>>>> ### Q: What Linux kernel versions does each Open vSwitch release work with?)
>>>>>>>
>>>>>>> I installed SFC with OVS 2.4.0 and 2.5.0 and not seen any issue
>>>>>>>
>>>>>>> Please check SFC wiki for installation guidelines : https://wiki.openstack.org/wiki/Neutron/ServiceInsertionAndChaining
>>>>>>>
>>>>>>>
>>>>>>> Thanks.,
>>>>>>>
>>>>>>> Mohankumar.N
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Tue, Jun 7, 2016 at 1:46 PM, shihanzhang <ayshihanzhang at 126.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Hi Alioune and Cathy,
>>>>>>>> For devstack on ubuntu14.04, the default ovs version is 2.0.2,
>>>>>>>> so there was the error as Alioune said.
>>>>>>>> Do we need to install speical ovs version in networking-sfc
>>>>>>>> devstack plugin.sh?
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> 在 2016-06-07 07:48:26，"Cathy Zhang" <Cathy.H.Zhang at huawei.com> 写道：
>>>>>>>>
>>>>>>>> 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:balioune3 at gmail.com]
>>>>>>>> *Sent:* Friday, June 03, 2016 9:07 AM
>>>>>>>> *To:* openstack-dev at 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
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> __________________________________________________________________________
>>>>>>>> OpenStack Development Mailing List (not for usage questions)
>>>>>>>> Unsubscribe:
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>>>>>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> __________________________________________________________________________
>>>>>>> OpenStack Development Mailing List (not for usage questions)
>>>>>>> Unsubscribe:
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>>>>>>>
>>>>>>>
>>>>>>
>>>>
>>>
>>
>
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