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LINC Configuration generator

Utility that takes a JSON topology description file and generates a sys.config configuration file for the LINC Switch.

Usage

Compile and test:

$ make compile test

Run the config generator:

$ make run controller_port=6653 controller_ip=127.0.0.1 topology=topology.json config_template=config

This will generate a sys.config file in $PWD.

Defaults values are:

  • controller_port: 6653,
  • controller_ip: localhost,
  • topology: priv/json_example.json,
  • config_template: priv/sys.config.template.

Topology file

Topology file should have two keys: switchConfig and linkConfig. Values of both should be arrays of objects representing respectively switches and links between them. A switch object is required to have a nodeDpid key which value is a switch datapath id. A link object describe how the switches are connected and is expected to have nodeDpid1 and nodeDpid2 that represent datapath ids of the switches defined in the switchConfig. The link object also have to include params key whose value is an object with ports. The ports are defined as follows:

"port1": 20
"port2": 21

The value is the port number of the corresponding nodeDpid1 (i.e. first port is assumed to be attached to switch with nodeDpid1 and so on). The last key of the link object is a type. It can has two values: either "pktOptLink" or "wdmLink". The first is for links between packet and optical ports and the other one is for optical links.

Example topology file:

{
    "switchConfig": [
        {
            "nodeDpid": "00:00:ff:ff:ff:ff:ff:02",
        },
        {
            "nodeDpid": "00:00:ff:ff:ff:ff:ff:03",
        }
    ],

    "linkConfig": [
        {
            "nodeDpid1": "00:00:ff:ff:ff:ff:ff:01",
            "nodeDpid2": "00:00:ff:ff:ff:ff:ff:02",
            "params": {
                "port1": 101,
                "port2": 201
            },
            "type": "pktOptLink"
        },
        {
            "nodeDpid1": "00:00:ff:ff:ff:ff:ff:02",
            "nodeDpid2": "00:00:ff:ff:ff:ff:ff:03",
            "params": {
                "port1": 202,
                "port2": 301
            },
            "type": "wdmLink"
        },
        {
            "nodeDpid1": "00:00:ff:ff:ff:ff:ff:03",
            "nodeDpid2": "00:00:ff:ff:ff:ff:ff:04",
            "params": {
                "port1": 302,
                "port2": 401
            },
            "type": "pktOptLink"
        }
    ]
}