File:TrunkPortVnicsAfter.png

digraph {

    compound = true
    node [
        shape = record
    ]

    subgraph cluster_compute {

        label = "compute host"

        subgraph cluster_vm {
            label = "openstack instance"
            vnic [
                label = "vNIC"
            ]
            iface_tag_2 [
                label = "eth0.20"
            ]
            iface_untagged [
                label = "eth0"
            ]
            iface_tag_1 [
                label = "eth0.10"
            ]
            iface_tag_2 -> vnic [
                dir = none
                color = blue
            ]
            iface_untagged -> vnic [
                dir = none
                color = green
            ]
            iface_tag_1 -> vnic [
                dir = none
                color = red
            ]
        }

        trunkport [
            label = "trunk port"
        ]

        subport_tag_1 [
            label = "vlan 10 subport"
        ]

        subport_default [
            label = "default (untagged) subport"
        ]

        subport_tag_2 [
            label = "vlan 20 subport"
        ]

    }

    net_tag_1 [
        label = "net1\nfabric vlan 110"
    ]

    net_untagged [
        label = "net0\nfabric vlan 100"
    ]

    net_tag_2 [
        label = "net2\nfabric vlan 120"
    ]

    vnic -> trunkport [
        dir = none
        color = red
    ]

    vnic -> trunkport [
        dir = none
        color = green
    ]

    vnic -> trunkport [
        dir = none
        color = blue
    ]

    trunkport -> subport_tag_1 [
        dir = none
        color = red
    ]

    trunkport -> subport_default [
        dir = none
        color = green
    ]

    trunkport -> subport_tag_2 [
        dir = none
        color = blue
    ]

    subport_tag_1 -> net_tag_1 [
        dir = both
        color = red
    ]

    subport_default -> net_untagged [
        dir = both
        color = green
    ]

    subport_tag_2 -> net_tag_2 [
        dir = both
        color = blue
        label = "remap encapsulation between\ninstance and fabric (pop, push)"
        fontcolor = grey
    ]

    comment_model [
        label = "trunk port model:\nmany networks in an instance\ncome with a single vNIC\nplus encapsulation"
        style = dotted
        color = grey
        fontcolor = grey
    ]

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

}