Comment 7 for bug 1292105

the gre overlay network is not coming up properly:
on a novacompute0
$ sudo ovs-vsctl show
fff1865e-f1dd-4556-9b24-cf93a597cd17
    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 br-int
            Interface br-int
                type: internal
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
    ovs_version: "2.1.2"

and novacompute1
]# ovs-vsctl show
0ed498b8-983a-4da7-8cd7-e1eff3b00ded
    Bridge br-int
        fail_mode: secure
        Port br-int
            Interface br-int
                type: internal
        Port "qvod92b0ee8-ef"
            tag: 1
            Interface "qvod92b0ee8-ef"
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
    Bridge br-tun
        Port br-tun
            Interface br-tun
                type: internal
        Port "gre-c0000203"
            Interface "gre-c0000203"
                type: gre
                options: {df_default="true", in_key=flow, local_ip="192.0.2.6", out_key=flow, remote_ip="192.0.2.3"}
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
    ovs_version: "2.1.2"

What it should have, on br-tun is this (from the controller):

$ sudo ovs-vsctl show
6a11686d-c375-4be8-b346-725f8d890540
    Bridge br-ex
        Port "qg-c39ccf5a-0a"
            Interface "qg-c39ccf5a-0a"
                type: internal
        Port br-ex
            Interface br-ex
                type: internal
        Port "eth0"
            Interface "eth0"
    Bridge br-tun
        Port br-tun
            Interface br-tun
                type: internal
        Port "gre-c0000203"
            Interface "gre-c0000203"
                type: gre
                options: {df_default="true", in_key=flow, local_ip="192.0.2.4", out_key=flow, remote_ip="192.0.2.3"}
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "gre-c0000206"
            Interface "gre-c0000206"
                type: gre
                options: {df_default="true", in_key=flow, local_ip="192.0.2.4", out_key=flow, remote_ip="192.0.2.6"}
    Bridge br-int
        fail_mode: secure
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "tap357190d8-c9"
            tag: 1
            Interface "tap357190d8-c9"
                type: internal
        Port "qr-b474f6f4-e8"
            tag: 1
            Interface "qr-b474f6f4-e8"
                type: internal
        Port br-int
            Interface br-int
                type: internal
    ovs_version: "2.1.2"

Note the mesh of point to point links