[openstack-dev] [neutron][SFC]
Mohan Kumar
nmohankumar1011 at gmail.com
Thu Jun 9 16:12:15 UTC 2016
Alioune,
If you use networking-sfc master code , you can use create
flow-classifier without logical-source-port specified . But
if back-end driver is OVS , you will end up failure in ovs_driver checks .
If i remembered correct , logical_source_port restriction is
to avoid retrun packets to get reclassified .
Thanks.,
Mohankumar.N
On Thu, Jun 9, 2016 at 8:27 PM, Alioune <balioune3 at gmail.com> wrote:
> 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:
>>>>>>>>> OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
>>>>>>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> __________________________________________________________________________
>>>>>>>> OpenStack Development Mailing List (not for usage questions)
>>>>>>>> Unsubscribe:
>>>>>>>> OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
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>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>
>>>>
>>>
>>
>
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