I am building JUNO on Centos 7 (1 controller, 1 network, 2 compute nodes) bare-metal 4 physical nodes link text

I am stuck at "verify connectivity" it say ping -c 4 203.0.113.101

IT SAY "

If you configured your external physical network and virtual networks correctly, you should be able to ping this IP address from any host on your external physical network.

" I can see the problem in /var/log/neutron/openvswitch-agent.log - how do I fix it?

ERROR neutron.plugins.openvswitch.agent.ovs_neutron_agent [req-f415c2ac-bf31-402c-bff8-169c1878e939 None] Bridge br-vlan for physical network physnet1 does not exist. Agent terminated!

br-vlan does exist

[root@network ~]# ovs-vsctl show
a9f7a8c9-c31e-4899-a819-000cdbabeddf
    Bridge br-tun
        Port "gre-c0a8075b"
            Interface "gre-c0a8075b"
                type: gre
                options: {df_default="true", in_key=flow, local_ip="192.168.7.80", out_key=flow, remote_ip="192.168.7.91"}
        Port br-tun
            Interface br-tun
                type: internal
        Port "gre-c0a8075a"
            Interface "gre-c0a8075a"
                type: gre
                options: {df_default="true", in_key=flow, local_ip="192.168.7.80", out_key=flow, remote_ip="192.168.7.90"}
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
    Bridge br-vlan
        Port phy-br-vlan
            Interface phy-br-vlan
                type: patch
                options: {peer=int-br-vlan}
        Port "qg-83f19a07-ab"
            Interface "qg-83f19a07-ab"
                type: internal
        Port "eno1"
            Interface "eno1"
        Port br-vlan
            Interface br-vlan
                type: internal
    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-vlan
            Interface int-br-vlan
                type: patch
                options: {peer=phy-br-vlan}
        Port "qr-9d31d600-fe"
            tag: 1
            Interface "qr-9d31d600-fe"
                type: internal
    ovs_version: "2.1.3"

and so is physnet1 it is on both the controller and the network nodes

network

[root@network ~]# grep -v '^#' /etc/neutron/plugins/ml2/ml2_conf.ini|grep [a-zA-Z]
[ml2]
type_drivers = vlan,gre
tenant_network_types = gre
mechanism_drivers = openvswitch
[ml2_type_flat]
[ml2_type_vlan]
network_vlan_ranges = physnet1:208:2234
[ml2_type_gre]
[ml2_type_vxlan]
[securitygroup]
enable_security_group = True
enable_ipset = True
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
[ovs]
local_ip = 192.168.7.80
enable_tunneling = True
bridge_mappings = physnet1:br-vlan
[agent]
tunnel_types = gre

controller

[root@controller ~]# grep -v '^#' /etc/neutron/plugins/ml2/ml2_conf.ini|grep [a-zA-Z]
[ml2]
type_drivers = vlan, gre
tenant_network_types = gre
mechanism_drivers = openvswitch
[ml2_type_flat]
[ml2_type_vlan]
network_vlan_ranges = physnet1:208:2234
[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]
[agent]
tunnel_types = gre

the namespace looks fine too, and appears to be working fine as well

 ip  netns exec qrouter-c2c8b397-0e50-4c30-b442-52116161c002 ip a 
 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 
     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
     inet 127.0.0.1/8 scope host lo
        valid_lft forever preferred_lft forever
     inet6 ::1/128 scope host 
        valid_lft forever preferred_lft forever
 12: qr-9d31d600-fe: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 
     link/ether fa:16:3e:76:6c:e6 brd ff:ff:ff:ff:ff:ff
     inet 192.168.1.1/24 brd 192.168.1.255 scope global qr-9d31d600-fe
        valid_lft forever preferred_lft forever
     inet6 fe80::f816:3eff:fe76:6ce6/64 scope link 
        valid_lft forever preferred_lft forever
 13: qg-83f19a07-ab: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 
     link/ether fa:16:3e:c9:e9:97 brd ff ...