[openstack-dev] [neutron][SFC]

Alioune balioune3 at gmail.com
Fri Jun 10 14:21:36 UTC 2016


Hi Mohan,
Even if I clone the master branch of networking-sfc project,I get the
following errir when creating flow-classifier, therefore I do precise the
 logical-source-port.

2016-06-10 05:34:05.693 10799 ERROR neutron.api.v2.resource DBError:
(pymysql.err.IntegrityError) (1048, u"Column 'logical_source_port' cannot
be null")

I'm trying the example in [1]

Here is a "ovs-ofctl dump-flows" on br-int ofter creating port-chain, I
expected to see vxlan or gre tunnel encapsulation entries as explained in
[1], may I know why there is no tunnel entry in br-int ?

sudo ovs-ofctl dump-flows br-int
NXST_FLOW reply (xid=0x4):
 cookie=0x90444f3c8fabcbe0, duration=2840.983s, table=0, n_packets=0,
n_bytes=0, idle_age=2840, priority=10,icmp6,in_port=16,icmp_type=136
actions=resubmit(,24)
 cookie=0x90444f3c8fabcbe0, duration=2837.039s, table=0, n_packets=0,
n_bytes=0, idle_age=2837, priority=10,icmp6,in_port=17,icmp_type=136
actions=resubmit(,24)
 cookie=0x90444f3c8fabcbe0, duration=2831.688s, table=0, n_packets=0,
n_bytes=0, idle_age=2831, priority=10,icmp6,in_port=19,icmp_type=136
actions=resubmit(,24)
 cookie=0x90444f3c8fabcbe0, duration=2831.038s, table=0, n_packets=0,
n_bytes=0, idle_age=2831, priority=10,icmp6,in_port=18,icmp_type=136
actions=resubmit(,24)
 cookie=0x90444f3c8fabcbe0, duration=2801.555s, table=0, n_packets=0,
n_bytes=0, idle_age=2801, priority=10,icmp6,in_port=20,icmp_type=136
actions=resubmit(,24)
 cookie=0x90444f3c8fabcbe0, duration=2840.605s, table=0, n_packets=8,
n_bytes=336, idle_age=2591, priority=10,arp,in_port=16 actions=resubmit(,24)
 cookie=0x90444f3c8fabcbe0, duration=2836.759s, table=0, n_packets=0,
n_bytes=0, idle_age=2836, priority=10,arp,in_port=17 actions=resubmit(,24)
 cookie=0x90444f3c8fabcbe0, duration=2831.485s, table=0, n_packets=0,
n_bytes=0, idle_age=2831, priority=10,arp,in_port=19 actions=resubmit(,24)
 cookie=0x90444f3c8fabcbe0, duration=2830.816s, table=0, n_packets=21,
n_bytes=882, idle_age=1605, priority=10,arp,in_port=18 actions=resubmit(,24)
 cookie=0x90444f3c8fabcbe0, duration=2801.309s, table=0, n_packets=10,
n_bytes=420, idle_age=545, priority=10,arp,in_port=20 actions=resubmit(,24)
 cookie=0x90444f3c8fabcbe0, duration=15755.073s, table=0, n_packets=3241,
n_bytes=366555, idle_age=545, priority=0 actions=NORMAL
 cookie=0x90444f3c8fabcbe0, duration=15754.687s, table=23, n_packets=0,
n_bytes=0, idle_age=15754, priority=0 actions=drop
 cookie=0x90444f3c8fabcbe0, duration=2841.201s, table=24, n_packets=0,
n_bytes=0, idle_age=2841,
priority=2,icmp6,in_port=16,icmp_type=136,nd_target=fe80::f816:3eff:fe2d:c29d
actions=NORMAL
 cookie=0x90444f3c8fabcbe0, duration=2837.177s, table=24, n_packets=0,
n_bytes=0, idle_age=2837,
priority=2,icmp6,in_port=17,icmp_type=136,nd_target=fe80::f816:3eff:fee0:f8ca
actions=NORMAL
 cookie=0x90444f3c8fabcbe0, duration=2831.794s, table=24, n_packets=0,
n_bytes=0, idle_age=2831,
priority=2,icmp6,in_port=19,icmp_type=136,nd_target=fe80::f816:3eff:fe86:a668
actions=NORMAL
 cookie=0x90444f3c8fabcbe0, duration=2831.150s, table=24, n_packets=0,
n_bytes=0, idle_age=2831,
priority=2,icmp6,in_port=18,icmp_type=136,nd_target=fe80::f816:3eff:feb4:965f
actions=NORMAL
 cookie=0x90444f3c8fabcbe0, duration=2801.675s, table=24, n_packets=0,
n_bytes=0, idle_age=2801,
priority=2,icmp6,in_port=20,icmp_type=136,nd_target=fe80::f816:3eff:fe5a:3097
actions=NORMAL
 cookie=0x90444f3c8fabcbe0, duration=2840.794s, table=24, n_packets=8,
n_bytes=336, idle_age=2591, priority=2,arp,in_port=16,arp_spa=55.55.55.3
actions=NORMAL
 cookie=0x90444f3c8fabcbe0, duration=2836.901s, table=24, n_packets=0,
n_bytes=0, idle_age=2836, priority=2,arp,in_port=17,arp_spa=55.55.55.4
actions=NORMAL
 cookie=0x90444f3c8fabcbe0, duration=2831.587s, table=24, n_packets=0,
n_bytes=0, idle_age=2831, priority=2,arp,in_port=19,arp_spa=55.55.55.6
actions=NORMAL
 cookie=0x90444f3c8fabcbe0, duration=2830.933s, table=24, n_packets=21,
n_bytes=882, idle_age=1605, priority=2,arp,in_port=18,arp_spa=55.55.55.5
actions=NORMAL
 cookie=0x90444f3c8fabcbe0, duration=2801.431s, table=24, n_packets=10,
n_bytes=420, idle_age=545, priority=2,arp,in_port=20,arp_spa=55.55.55.8
actions=NORMAL
 cookie=0x90444f3c8fabcbe0, duration=15754.273s, table=24, n_packets=0,
n_bytes=0, idle_age=15754, priority=0 actions=drop


is there a link that explains how pipelines are created by SFC in br-int to
compare with my flows entries ?

Does the flow-classifier referer to floating IPs or tenant network IPs to
do the classification ?

Regards,

[1]
http://docs.openstack.org/developer/networking-sfc/system_design%20and_workflow.html

On 9 June 2016 at 18:59, Henry Fourie <louis.fourie at huawei.com> wrote:

> Alioune,
>
>    The logical-source-port refers to a Neutron port of the VM that
>
> originates the traffic that is to be processed by the port-chain.
>
> -        Louis
>
>
>
> *From:* Alioune [mailto:balioune3 at gmail.com]
> *Sent:* Thursday, June 09, 2016 6:50 AM
> *To:* Mohan Kumar
> *Cc:* OpenStack Development Mailing List (not for usage questions)
> *Subject:* Re: [openstack-dev] [neutron][SFC]
>
>
>
> 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
>
>
>
>
>
>
>
>
>
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