Hi Shihanzhang, Sorry for the late reply. Later after asking for suggestion here on mailing list and while i was exploring on how to fix this issue, bug was marked duplicate of https://bugs.launchpad.net/neutron/+bug/1399249 . So i left its tracking.
And on your question, yes even after ovs-agent restart binding does not recovers. Thanks & Regars Vikas Choudhary ________________________________________________________________ hi Vikas Choudhary, when ovs-agent service recover(ovs-agent process restart), the dhcp port will not re-binding successfully? At 2015-08-22 14:26:08, "Vikas Choudhary" <choudharyvikas16 at gmail.com <http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev>> wrote: Hi Everybody, I want to discuss on https://bugs.launchpad.net/neutron/+bug/1348589.This is there for more than a year and no discussion i could find on this. Scenario: ovs-agent is down and then a network and subnet under this newly created network are created using cli. No error visible to user, but following irregularities are found. Discrepancies: 1. neutron port-show <dhcp-port> shows: binding:vif_type | binding_failed 2. Running "ovs-ofctl dump-flows br-tun", no of-flow got added 3. Running "ovs-vsctl show br-int", no tag for dhcp-port. neutron db will have all the attributes required to retry vif binding.My query is when should we trigger this rebinding.Two approaches i could think of are: 1> At neutron server restart, for all ports with vif_type as "binding_failed" plugins/ml2/drivers/mech_agent.bind_port can be invoked as a sync up activity. 2> In neutron port update api, http://developer.openstack.org/api-ref-networking-v2-ext.html , could be enhanced to receive vif binding related options also and then eventually plugins/ml2/drivers/mech_agent.bind_port can be invoked.Corresponding changes will be made to 'port update cli' also. Please suggest.
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