Bridge br-tun
        Port br-tun
            Interface br-tun
                type: internal
        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port "gre-3"
            Interface "gre-3"
                type: gre
                options: {in_key=flow, local_ip="172.16.0.1", out_key=flow, remote_ip="172.16.0.3"}
        Port "gre-4"
            Interface "gre-4"
                type: gre
                options: {in_key=flow, local_ip="172.16.0.1", out_key=flow, remote_ip="172.16.0.4"}
        Port "gre-2"
            Interface "gre-2"
                type: gre
                options: {in_key=flow, local_ip="172.16.0.1", out_key=flow, remote_ip="172.16.0.2"}
    Bridge br-int
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "tapba797d18-c5"
            tag: 5
            Interface "tapba797d18-c5"
        Port br-int
            Interface br-int
                type: internal
        Port "tap478427af-79"
            tag: 6
            Interface "tap478427af-79"
    Bridge br-ex
        Port br-ex
            Interface br-ex
                type: internal
        Port "eth1"
            Interface "eth1"
    ovs_version: "1.10.2"