{
    "link": [
        {
          "link-id":"openflow:1:3",
          "metric":"1",
          "delay":"",
          "loss-rate":""
        },
        {
          "link-id":"openflow:3:1",
          "metric":"1",
          "delay":"",
          "loss-rate":""
        },

        {
          "link-id":"openflow:3:2",
          "metric":"1",
          "delay":"",
          "loss-rate":""
        },
        {
          "link-id":"openflow:2:3",
          "metric":"1",
          "delay":"",
          "loss-rate":""
        },

        {
          "link-id":"openflow:3:3",
          "metric":"1",
          "delay":"",
          "loss-rate":""
        },
        {
          "link-id":"openflow:4:1",
          "metric":"1",
          "delay":"",
          "loss-rate":""
        }
    ]
}