topology.json

{
    "hosts": {
        "h1": {
            "ip": "10.0.1.1/24",
            "mac": "08:00:00:00:01:01",
            "commands": [
                "route add default gw 10.0.1.10 dev eth0",
                "arp -i eth0 -s 10.0.1.10 08:00:00:00:01:00"
            ]
        },
        "h2": {
            "ip": "10.0.2.2/24",
            "mac": "08:00:00:00:02:02",
            "commands": [
                "route add default gw 10.0.2.20 dev eth0",
                "arp -i eth0 -s 10.0.2.20 08:00:00:00:02:00"
            ]
        },
        "h3": {
            "ip": "10.0.3.3/24",
            "mac": "08:00:00:00:03:03",
            "commands": [
                "route add default gw 10.0.3.30 dev eth0",
                "arp -i eth0 -s 10.0.3.30 08:00:00:00:03:00"
            ]
        }
    },
    "switches": {
        "s1": {
            "runtime_json": "s1-runtime.json"
        },
        "s2": {
            "runtime_json": "s2-runtime.json"
        },
        "s3": {
            "runtime_json": "s3-runtime.json"
        }
    },
    "links": [
        [
            "h1",
            "s1-p1"
        ],
        [
            "s1-p2",
            "s2-p2"
        ],
        [
            "s1-p3",
            "s3-p2"
        ],
        [
            "s3-p3",
            "s2-p3"
        ],
        [
            "h2",
            "s2-p1"
        ],
        [
            "h3",
            "s3-p1"
        ]
    ]
}