Issue to use global scope when use docker swarm mode and v2plugin

Hi Team,

When I trying to use kuryr-libentwork(which is a remote driver) in docker swarm mode, it looks good when I run it with "local" scope in NetworkDriver. But when I run it in "global" capability, it can't works and it show the "swarm" scope. Is it supported run in "global" capability when I use docker swarm mode with v2plugin?

Here is some info:

Docker Version:
# docker version
Client:
 Version:      1.13.1-cs2
 API version:  1.26
 Go version:   go1.7.5
 Git commit:   ad32da7
 Built:        Thu Feb 23 16:40:08 2017
 OS/Arch:      linux/amd64

Server:
 Version:      1.13.1-cs2
 API version:  1.26 (minimum version 1.12)
 Go version:   go1.7.5
 Git commit:   ad32da7
 Built:        Thu Feb 23 16:40:08 2017
 OS/Arch:      linux/amd64
 Experimental: false

Here is the log , it runs normal when it is local scope:

# docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
08da057d698b        bridge              bridge              local
526a0b195163        docker_gwbridge     bridge              local
83f849eb1d60        host                host                local
ouqu3ermkxba        ingress             overlay             swarm
772b4aa8d77b        limao_swarm_kuryr   kuryr:latest        local
1f88364d0ab8        none                null                local

Here is the log, it can't works when I use "global" scope, it shows it is "swarm" scope and can't even show the Driver name(The network name is limao_kuryr1):

# docker network create --driver=kuryr --ipam-driver=kuryr --subnet 10.225.17.0/24  --gateway 10.225.17.1 --ip-range  10.225.17.0/24 -o neutron.net.uuid=55aec833-7838-482f-be9e-b205e5c6f2c4 limao_kuryr1

# docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
3aa3c903c45f        bridge              bridge              local
526a0b195163        docker_gwbridge     bridge              local
83f849eb1d60        host                host                local
ouqu3ermkxba        ingress             overlay             swarm
qazi7mnpl7br        limao_kuryr1                            swarm
1f88364d0ab8        none                null                local

I use global scope, but it shows "swarm" scope here:

# docker network inspect limao_kuryr1
[
    {
        "Name": "limao_kuryr1",
        "Id": "qazi7mnpl7brjxho4kbb62nu7",
        "Created": "0001-01-01T00:00:00Z",
        "Scope": "swarm",
        "Driver": "",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "kuryr:latest",
            "Options": null,
            "Config": [
                {
                    "Subnet": "10.225.17.0/24",
                    "IPRange": "10.225.17.0/24",
                    "Gateway": "10.225.17.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Containers": null,
        "Options": null,
        "Labels": null
    }
]

Thanks.

Start by reproducing the reported Docker 1.13.1 swarm-mode commands for creating and inspecting a Kuryr network with global scope. Compare the local-scope and global-scope results, then determine from the network-driver behavior whether global scope is supported and what observable result should be considered done.