mock-redfish-server/mockup/redfish/v1/EthernetSwitches/index.json

{
    "@odata.type": "#EthernetSwitchCollection.EthernetSwitchCollection",
    "Name": "Ethernet Switches Collection",
    "@odata.context": "/redfish/v1/$metadata#EthernetSwitchCollection.EthernetSwitchCollection",
    "Members": [
        {
            "@odata.id": "/redfish/v1/EthernetSwitches/1"
        }
    ],
    "Description": "Collection of Ethernet Switches",
    "@odata.id": "/redfish/v1/EthernetSwitches",
    "Members@odata.count": 1
}