{
  "event": "addLink",
  "payload": {
    "id": "of:0000ffffffff000b/12-of:0000ffffffff000c/11",
    "type": "direct",
    "online": true,
    "linkWidth": 2,
    "src": "of:0000ffffffff000b",
    "srcPort": "12",
    "dst": "of:0000ffffffff000c",
    "dstPort": "11"
  }
}