File:TrunkVnicsBefore.svg

// dot -Tsvg -oTrunkVnicsBefore.svg TrunkVnicsBefore.dot

digraph "Neutron vNICs: Legacy" {

    compound = true
    node [
        shape = record
    ]

    subgraph cluster_compute {

        label = "compute host"

        subgraph cluster_vm {
            label = "openstack instance"

            vnic_0 [
                label = "vNIC"
            ]
            vnic_1 [
                label = "vNIC"
            ]
            vnic_2 [
                label = "vNIC"
            ]

            iface_0 [
                label = "eth0"
            ]
            iface_1 [
                label = "eth1"
            ]
            iface_2 [
                label = "eth2"
            ]
            iface_0 -> vnic_0 [
                dir = none
                color = green
            ]
            iface_1 -> vnic_1 [
                dir = none
                color = red
            ]
            iface_2 -> vnic_2 [
                dir = none
                color = blue
            ]
        }

        port_0 [
            label = "port0"
        ]

        port_1 [
            label = "port1"
        ]

        port_2 [
            label = "port2"
        ]

        vnic_0 -> port_0 [
            dir = none
            color = green
        ]

        vnic_1 -> port_1 [
            dir = none
            color = red
        ]

        vnic_2 -> port_2 [
            dir = none
            color = blue
        ]

    }

    net_0 [
        label = "net0\nvlan/vxlan/gre X"
    ]

    net_1 [
        label = "net1\nvlan/vxlan/gre Y"
    ]

    net_2 [
        label = "net2\nvlan/vxlan/gre Z"
    ]

    port_0 -> net_0 [
        dir = none
        color = green
    ]

    port_1 -> net_1 [
        dir = none
        color = red
    ]

    port_2 -> net_2 [
        dir = none
        color = blue
    ]

    comment_model [
        label = "legacy model:\nmany networks in an instance\ncome with many vNICs"
        style = dotted
        color = grey
        fontcolor = grey
    ]

    comment_model -> vnic_2 [
        style = dotted
        color = grey
    ]

}