message: Added new virtualNetwork property to load balancer backend address pool
diff: "type": "integer",
  "format": "int32",
  "description": "Amount of seconds Load Balancer waits for before sending RESET to client and backend address."
  + },
  + "virtualNetwork": {
  + "$ref": "./network.json#/definitions/SubResource",
  + "description": "A reference to a virtual network."
  }
  },
  "description": "Properties of the backend address pool."
  