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There are many WARNING infos:


2016-03-12 08:23:28.919 30738 WARNING neutron.plugins.ml2.drivers.openvswitch.agent.openflow.ovs_ofctl.ofswitch [req-c5695ca8-b886-4092-970f-edb18d8d87cc - - - - -] Deleting flow  cookie=0x86cb85757ac914ee, duration=172005.248s, table=22, n_packets=6, n_bytes=308, idle_age=1163, hard_age=65534, dl_vlan=1 actions=strip_vlan,set_tunnel:0x32,output:3,output:2,output:6,output:5,output:4
2016-03-12 08:23:28.934 30738 WARNING neutron.plugins.ml2.drivers.openvswitch.agent.openflow.ovs_ofctl.ofswitch [req-c5695ca8-b886-4092-970f-edb18d8d87cc - - - - -] Deleting flow  cookie=0x86cb85757ac914ee, duration=169637.050s, table=22, n_packets=8, n_bytes=608, idle_age=1162, hard_age=65534, dl_vlan=2 actions=strip_vlan,set_tunnel:0x4c,output:3,output:2,output:6,output:5,output:4
2016-03-12 08:23:28.949 30738 WARNING neutron.plugins.ml2.drivers.openvswitch.agent.openflow.ovs_ofctl.ofswitch [req-c5695ca8-b886-4092-970f-edb18d8d87cc - - - - -] Deleting flow  cookie=0x86cb85757ac914ee, duration=93767.242s, table=22, n_packets=11, n_bytes=834, idle_age=1163, hard_age=65534, dl_vlan=3 actions=strip_vlan,set_tunnel:0x53,output:3,output:2,output:6,output:5,output:4
2016-03-12 08:23:28.964 30738 WARNING neutron.plugins.ml2.drivers.openvswitch.agent.openflow.ovs_ofctl.ofswitch [req-c5695ca8-b886-4092-970f-edb18d8d87cc - - - - -] Deleting flow  cookie=0x86cb85757ac914ee, duration=93743.254s, table=22, n_packets=9, n_bytes=618, idle_age=1163, hard_age=65534, dl_vlan=4 actions=strip_vlan,set_tunnel:0x22,output:3,output:2,output:6,output:5,output:4
2016-03-12 08:24:16.757 30738 INFO neutron.agent.securitygroups_rpc [req-a0e6c976-5ded-4300-bbd0-e489dcd83e02 9f1d641c46954391ba46f06936713fdd 2bec68aa33a54a8b905d4516eaa8b81e - - -] Security group member updated [u'46d98306-d04e-4420-b86b-c6685bc2a8dc']

 
 
------------------ Original ------------------
From:  "Doug Wiegley"<dougwig at parksidesoftware.com>;
Date:  Sun, Mar 13, 2016 10:35 AM
To:  "OpenStack Development Mailing List (not for usage questions)"<openstack-dev at lists.openstack.org>; 

Subject:  Re: [openstack-dev] [neutron]Where did the flows go in ovs bridge?

 
Take a look in /var/log/neutron/openvswitch-agent.log, or similar, on the hypervisor. 

Doug


> On Mar 12, 2016, at 6:54 PM, Zhi Chang <changzhi at unitedstack.com> wrote:
> 
> hi, guys.
> 
>     I deployed DVR in my local environment by following  this document(https://wiki.openstack.org/wiki/Neutron/DVR).  And I have three compute nodes which running DVR l3-agent and two network nodes which running DVR_SNAT l3-agent.
> 
>     I created a vm in one of the computes nodes. And flows was generated normally. But, all flows are gone when I  restart "neutron-openvswitch-agent"!. I wait a few minutes but I can't see any flows were generated. 
> 
>     Could someone tell me why the flows are gone and they can't generated anymore?
> 
> 
> Thanks
> Zhi Chang
> 
>     
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