Hi,

Im starting to get blind on my config.
After I started with neutron and ovs the "neutron agent-list" are down, and my physical host.

My environment is one vm with keystone db, rabbit, and nova and neutron db.
One vm which is a network node with three vmx network interfaces.
One physical host which is the compute node with two network interfaces.
All is ubuntu 1404 (updated) with juno.

Below you can see ml2 config, and logs.
I have also checked this: http://bderzhavets.blogspot.com/2014/...
And mysql db tabels have correct ip addresses for the gre tunnel.

The problem started after i started with OVS. The Gre - tunnel seems working from the beginning but after restarting the neutron-plugin-openvswitch-agent the gre tunnel do not showing up in the "ovs-vsctl show" -list. The neutron-plugin-openvswitch-agent service will not start on the network node, it still running on compute node.

I have following the doc for juno and ubuntu 1404.

From network node:
ovs-vsctl show
48423edd-029c-4628-9966-311f6158a53c
    Bridge br-tun
        Port br-tun
            Interface br-tun
                type: internal
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
    Bridge br-int
        fail_mode: secure
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port br-int
            Interface br-int
                type: internal
        Port int-br-ex
            Interface int-br-ex
                type: patch
                options: {peer=phy-br-ex}
    Bridge br-ex
        Port br-ex
            Interface br-ex
                type: internal
        Port "eth2"
            Interface "eth2"
        Port phy-br-ex
            Interface phy-br-ex
                type: patch
                options: {peer=int-br-ex}
    ovs_version: "2.0.2"








    From compute node
     ovs-vsctl show
80837ab9-473d-439c-bc05-9c362593b1dc
    Bridge br-int
        fail_mode: secure
        Port br-int
            Interface br-int
                type: internal
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
    Bridge br-tun
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port br-tun
            Interface br-tun
                type: internal
    ovs_version: "2.0.2"



 From network node
  vi /etc/neutron/plugins/ml2/ml2_conf.ini
[ml2]
type_drivers = gre
tenant_network_types = gre
mechanism_drivers = openvswitch
integration_bridge = br-int
tunnel_bridge = br-tun

[ml2_type_flat]
flat_networks = external

[ml2_type_vlan]

[ml2_type_gre]
tunnel_id_ranges = 1:1000

[ml2_type_vxlan]

[securitygroup]
enable_security_group = True
enable_ipset = True
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver

[ovs]
local_ip = 10.55.0.23
enable_tunneling = True
bridge_mappings = external:br-ex

[agent]
tunnel_types = gre


 From compute node
  vi /etc/neutron/plugins/ml2/ml2_conf.ini 
 [ml2]
type_drivers = gre
tenant_network_types = gre
mechanism_drivers = openvswitch
integration_bridge = br-int
tunnel_bridge = br-tun

[ml2_type_flat]

[ml2_type_vlan]

[ml2_type_gre]
tunnel_id_ranges = 1:1000

[ml2_type_vxlan]

[securitygroup]
enable_security_group = True
enable_ipset = True
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver

[ovs]
local_ip = 10.55.0.38
enable_tunneling = True

[agent]
tunnel_types = gre


The log from network node.
cat /var/log/neutron/openvswitch-agent.log
...
2015-04-01 20:42:06.261 24898 INFO oslo.messaging._drivers.impl_rabbit [req-da830576-add3-4b50-926b-cc0b36c69714 ] Connected to AMQP server on 10.55.0.28:5672
2015-04-01 20:42:06.268 24898 INFO oslo.messaging._drivers.impl_rabbit [req-da830576-add3-4b50-926b-cc0b36c69714 ] Connecting to AMQP server on 10.55.0.28:5672
2015-04-01 20:42:06.276 24898 INFO oslo.messaging._drivers.impl_rabbit [req-da830576-add3-4b50-926b-cc0b36c69714 ] Connected to AMQP server on 10.55.0.28:5672
2015-04-01 20:42:06.282 24898 INFO neutron.plugins.openvswitch.agent.ovs_neutron_agent [req-da830576-add3-4b50-926b-cc0b36c69714 None] Agent initialized successfully, now running...
2015-04-01 20:42:06.286 24898 INFO neutron.plugins.openvswitch.agent.ovs_neutron_agent [req-da830576-add3-4b50-926b-cc0b36c69714 None] Agent out of sync ...