tree.json

{
  "network": {
    "node_id": "network-7d5f6fdfd0b04e68aeebfb18474e4c4f",
    "keywords": [
      "network"
    ],
    "children": [
      {
        "网络初阶": {
          "node_id": "network-d41a109241504ac689c4180793d237fe",
          "keywords": [
            "网络基础"
          ],
          "children": [
            {
              "认识身边的计算机网络": {
                "node_id": "network-21e72df6dd5b40dcb57d2daabf9d87b2",
                "keywords": [
                  "网络拓扑的分类"
                ],
                "children": [
                  {
                    "常见的网络设备": {
                      "node_id": "network-16b1ac6767d947f4b9cf1be248239823",
                      "keywords": [
                        "网络设备"
                      ],
                      "children": [
                        {
                          "常见的网络设备": {
                            "keywords": [
                              "终端设备",
                              "中间设备"
                            ],
                            "children": [
                              {
                                "终端设备": {
                                  "keywords": [
                                    "服务器",
                                    "主机",
                                    "手机",
                                    "PAD",
                                    "智能家居"
                                  ],
                                  "children": [],
                                  "node_id": "network-2aacb5a4f5a64677ace490d4373d7628",
                                  "keywords_must": [],
                                  "keywords_forbid": []
                                }
                              },
                              {
                                "中间设备": {
                                  "keywords": [
                                    "网卡",
                                    "集线器",
                                    "交换机",
                                    "无线路由器"
                                  ],
                                  "children": [],
                                  "node_id": "network-42e9982de4334db79ea829662e90ea2f",
                                  "keywords_must": [],
                                  "keywords_forbid": []
                                }
                              }
                            ],
                            "node_id": "network-c83783f42f4d4fdcb71dd55d3087b7f0",
                            "keywords_must": [],
                            "keywords_forbid": []
                          },
                          "常见的网络介质": {
                            "keywords": [
                              "双绞线",
                              "光纤",
                              "同轴电缆",
                              "无线电波"
                            ],
                            "children": [
                              {
                                "双绞线": {
                                  "keywords": [],
                                  "children": [],
                                  "node_id": "network-f554815cd83949e39076d2d740e309a0",
                                  "keywords_must": [],
                                  "keywords_forbid": []
                                }
                              },
                              {
                                "光纤": {
                                  "keywords": [],
                                  "children": [],
                                  "node_id": "network-677d34b090854749a8fbd56f52865021",
                                  "keywords_must": [],
                                  "keywords_forbid": []
                                }
                              },
                              {
                                "同轴电缆": {
                                  "keywords": [],
                                  "children": [],
                                  "node_id": "network-4609584ab42244e098cf66add5033ccd",
                                  "keywords_must": [],
                                  "keywords_forbid": []
                                }
                              },
                              {
                                "无线电波": {
                                  "keywords": [],
                                  "children": [],
                                  "node_id": "network-59c58501281c45d9a9df4b049bd97180",
                                  "keywords_must": [],
                                  "keywords_forbid": []
                                }
                              }
                            ],
                            "node_id": "network-a454d60cdec4407eb74f3c48da96462a",
                            "keywords_must": [],
                            "keywords_forbid": []
                          }
                        }
                      ],
                      "keywords_must": [
                        "网络设备"
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "网络拓扑的分类": {
                      "node_id": "network-05cf5084bf4b4f8dbb7040d4d53efbfa",
                      "keywords": [
                        "网络拓扑的分类"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "拓扑",
                          "分类"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  }
                ],
                "keywords_must": [],
                "keywords_forbid": []
              }
            },
            {
              "认识网络模型": {
                "node_id": "network-903c0a65059e41a88036c457f48d9351",
                "keywords": [],
                "children": [
                  {
                    "网络模型概述": {
                      "node_id": "network-8afe66fc4e1e4f539061de800a0a23bf",
                      "keywords": [
                        "网络模型概述"
                      ],
                      "children": [],
                      "keywords_must": [
                        "网络模型"
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "OSI模型": {
                      "node_id": "network-bac5e201cd3f471aa09aef6f6bd9dd6a",
                      "keywords": [
                        "OSI七层模型"
                      ],
                      "children": [
                        {
                          "应用层": {
                            "keywords": [],
                            "children": [],
                            "node_id": "network-ac91e22b3ac24c6386b20019c4aba448",
                            "keywords_must": [],
                            "keywords_forbid": []
                          }
                        },
                        {
                          "表示层": {
                            "keywords": [],
                            "children": [],
                            "node_id": "network-156ddd7b67824333b94292ab1da4919d",
                            "keywords_must": [],
                            "keywords_forbid": []
                          }
                        },
                        {
                          "会话层": {
                            "keywords": [],
                            "children": [],
                            "node_id": "network-0f8307081b334aad9456336908f73dcb",
                            "keywords_must": [],
                            "keywords_forbid": []
                          }
                        },
                        {
                          "传输层": {
                            "keywords": [],
                            "children": [],
                            "node_id": "network-dbc95331ded1475c8fdfe91201d808a7",
                            "keywords_must": [],
                            "keywords_forbid": []
                          }
                        },
                        {
                          "网络层": {
                            "keywords": [],
                            "children": [],
                            "node_id": "network-65553928adda488a9d4da9b8c44064f4",
                            "keywords_must": [],
                            "keywords_forbid": []
                          }
                        },
                        {
                          "数据链路层": {
                            "keywords": [],
                            "children": [],
                            "node_id": "network-633b307649d44e84933c3718b04de58d",
                            "keywords_must": [],
                            "keywords_forbid": []
                          }
                        },
                        {
                          "物理层": {
                            "keywords": [],
                            "children": [],
                            "node_id": "network-44a3707fb4334615b3916223cd3c8dbf",
                            "keywords_must": [],
                            "keywords_forbid": []
                          }
                        }
                      ],
                      "keywords_must": [
                        [
                          "OSI",
                          "模型"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "TCPIP模型": {
                      "node_id": "network-e7861382d8474d99b6c81866b3480346",
                      "keywords": [
                        "TCP/IP模型"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "TCP/IP",
                          "模型"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "数据的封装和解封装": {
                      "node_id": "network-9ca6243f54a446089eaf3a8f18dbdf5f",
                      "keywords": [
                        "网络中的数据封装解封装"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "数据",
                          "封装"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  }
                ],
                "keywords_must": [],
                "keywords_forbid": []
              }
            },
            {
              "认识传输介质": {
                "node_id": "network-59a5b62a972247948a07ffcf892b56c9",
                "keywords": [
                  "认识传输介质"
                ],
                "children": [
                  {
                    "物理层概述": {
                      "node_id": "network-93a232d0cf754e6b87dcdd6f43f8cbc8",
                      "keywords": [
                        "物理层概述"
                      ],
                      "children": [],
                      "keywords_must": [
                        "物理层"
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "通信方式": {
                      "node_id": "network-f5b3ff50904c4fed949e58640a143cfe",
                      "keywords": [
                        "通信方式"
                      ],
                      "children": [],
                      "keywords_must": [
                        "通信方式"
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "网络通信的介质": {
                      "node_id": "network-1ed5189882a04d6da48dc84617427b65",
                      "keywords": [
                        "网络通信介质"
                      ],
                      "children": [],
                      "keywords_must": [
                        "网络通信",
                        "介质"
                      ],
                      "keywords_forbid": []
                    }
                  }
                ],
                "keywords_must": [],
                "keywords_forbid": []
              }
            },
            {
              "认识中小型局域网": {
                "node_id": "network-60f0ba128ba74fa89c79e36884305783",
                "keywords": [
                  "LAN"
                ],
                "children": [
                  {
                    "数据链路层的作用": {
                      "node_id": "network-ec7441d074c1439285eab85cd1d35425",
                      "keywords": [
                        "数据链路层的作用"
                      ],
                      "children": [],
                      "keywords_must": [
                        "数据链路层",
                        "作用"
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "MAC地址及分类": {
                      "node_id": "network-45e9640d996c42d685c497fa6604a764",
                      "keywords": [
                        "MAC",
                        "MAC地址分类"
                      ],
                      "children": [],
                      "keywords_must": [
                        "MAC地址"
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "交换机的作用": {
                      "node_id": "network-770fb1807a7e4ef59c9f78e06685dd67",
                      "keywords": [
                        "交换机的作用"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "计算机网络",
                          "交换机"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "交换机的工作原理": {
                      "node_id": "network-e7f2ac802a3e4ac785b5f94d4935dcae",
                      "keywords": [
                        "交换机工作原理",
                        "MAC地址表的构建与转发"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "交换机",
                          "工作原理"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "ARP协议的工作原理": {
                      "node_id": "network-44c32ade1eb24e328d84b0970a82c874",
                      "keywords": [
                        "ARP"
                      ],
                      "children": [],
                      "keywords_must": [
                        "ARP"
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "VLAN": {
                      "node_id": "network-da956c02f676454e8bcaa50e3cfa8e06",
                      "keywords": [
                        "虚拟局域网",
                        "VLAN"
                      ],
                      "children": [],
                      "keywords_must": [
                        "VLAN"
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "WLAN": {
                      "node_id": "network-5dd420ebd67146afa5219a44cd614a47",
                      "keywords": [
                        "无线局域网",
                        "WLAN"
                      ],
                      "children": [],
                      "keywords_must": [
                        "WLAN"
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "PPP": {
                      "node_id": "network-dd30314697c84cc1b696d77dd11aced9",
                      "keywords": [
                        "PPP"
                      ],
                      "children": [],
                      "keywords_must": [
                        "PPP"
                      ],
                      "keywords_forbid": []
                    }
                  }
                ],
                "keywords_must": [],
                "keywords_forbid": []
              }
            },
            {
              "跨区域网络的通信学习": {
                "node_id": "network-d32c188136234d198a3d27aaf251434f",
                "keywords": [
                  "网络层"
                ],
                "children": [
                  {
                    "网络层的作用": {
                      "node_id": "network-8d8288ccd2b64a109c4f557efe592ac3",
                      "keywords": [
                        "网络层作用"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "计算机网络",
                          "网络层"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "IP协议的特点": {
                      "node_id": "network-ab6bfd85ec3440dd89fea166da0be00c",
                      "keywords": [
                        "IP地址"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "IP协议",
                          "特点"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "IPv4地址的分类和计算": {
                      "node_id": "network-772cd2af7db94508840e1441a7574877",
                      "keywords": [
                        "IP地址的计算",
                        "子网划分"
                      ],
                      "children": [],
                      "keywords_must": [
                        "IPv4"
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "常用协议和命令": {
                      "node_id": "network-cbc2f413286e40fcad470f79d0da9f1d",
                      "keywords": [
                        "常用协议和命令"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "协议",
                          "命令"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "路由表的工作原理": {
                      "node_id": "network-9d424643d20e4d6a8e563debaad8f21a",
                      "keywords": [
                        "三层转发原理",
                        "路由查表转发过程",
                        "路由器工作原理"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "路由",
                          "原理"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "静态路由": {
                      "node_id": "network-edb91111e5ff435cbcf23f5537866369",
                      "keywords": [
                        "静态路由"
                      ],
                      "children": [],
                      "keywords_must": [
                        "静态路由"
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "动态路由": {
                      "node_id": "network-8dd155538a954267abe06242248a083e",
                      "keywords": [
                        "动态路由"
                      ],
                      "children": [],
                      "keywords_must": [
                        "动态路由"
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "IPv6地址介绍": {
                      "node_id": "network-1f93a31002cf4fe2924a8c513c4a4a5c",
                      "keywords": [
                        "IPv6"
                      ],
                      "children": [],
                      "keywords_must": [
                        "IPv6"
                      ],
                      "keywords_forbid": []
                    }
                  }
                ],
                "keywords_must": [],
                "keywords_forbid": []
              }
            },
            {
              "应用程序间的数据传输": {
                "node_id": "network-5e7027e23eec4c67a7de74e9ab2caba8",
                "keywords": [
                  "传输层"
                ],
                "children": [
                  {
                    "传输层的作用": {
                      "node_id": "network-74e3d2800f35424a8e98ce089f7c27c6",
                      "keywords": [
                        "传输层作用"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "计算机网络",
                          "传输层"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "端口号的分类、作用": {
                      "node_id": "network-b9246efd155b47799dc02eb00175bd3d",
                      "keywords": [
                        "传输层端口号"
                      ],
                      "children": [],
                      "keywords_must": [
                        "端口号"
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "TCP协议的特点及应用": {
                      "node_id": "network-85712193cdfa4d82bafaa0f4cd30e266",
                      "keywords": [
                        "TCP协议特点",
                        "三次握手"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "TCP",
                          "特点"
                        ],
                        [
                          "TCP",
                          "应用"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "UDP协议的特点及应用": {
                      "node_id": "network-4a3481cb7b03425582b40d1e0d2e0d51",
                      "keywords": [
                        "UDP协议特点"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "UDP",
                          "特点"
                        ],
                        [
                          "UDP",
                          "应用"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  }
                ],
                "keywords_must": [],
                "keywords_forbid": []
              }
            },
            {
              "支撑应用程序的协议": {
                "node_id": "network-94a13c6c52614895b92d569cb38b3c87",
                "keywords": [
                  "应用层"
                ],
                "children": [
                  {
                    "应用层的作用": {
                      "node_id": "network-ae82cb15ba26426a91e8a1cb474328ae",
                      "keywords": [
                        "应用层作用"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "计算机网络",
                          "应用层"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "HTTP协议": {
                      "node_id": "network-bd22073e575c4d4ea1325760a3912954",
                      "keywords": [
                        "HTTP协议",
                        "WEB服务"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "HTTP",
                          "协议"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "FTP协议": {
                      "node_id": "network-14c66687e6e84ea68668d40b4cacd873",
                      "keywords": [
                        "FTP协议",
                        "文件传输协议"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "FTP",
                          "协议"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "DNS协议": {
                      "node_id": "network-656828c7f31c4f72ad230b9e3191161d",
                      "keywords": [
                        "DNS协议",
                        "域名系统",
                        "域名解析"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "DNS",
                          "协议"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "DHCP协议": {
                      "node_id": "network-66b95999ea2147c4945a1456eb3baaee",
                      "keywords": [
                        "DHCP协议",
                        "动态获取IP地址"
                      ],
                      "children": [],
                      "keywords_must": [
                        [
                          "DHCP",
                          "协议"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "邮件协议": {
                      "node_id": "network-c554312da0e0433c974d1e489be231e2",
                      "keywords": [
                        "SMTP",
                        "POP"
                      ],
                      "children": [],
                      "keywords_must": [
                        "SMTP",
                        [
                          "邮件",
                          "协议"
                        ]
                      ],
                      "keywords_forbid": []
                    }
                  }
                ],
                "keywords_must": [],
                "keywords_forbid": []
              }
            }
          ],
          "keywords_must": [],
          "keywords_forbid": []
        }
      },
      {
        "网络中阶": {
          "node_id": "network-c2ad656b2d434cf2bddae5b67a54a30e",
          "keywords": [
            "路由交换"
          ],
          "children": [
            {
              "交换": {
                "node_id": "network-1c08cbe277804c9aa7d86a7cea45bb2b",
                "keywords": [
                  "交换"
                ],
                "children": [
                  {
                    "VLAN": {
                      "node_id": "network-ae056a3111bf495687aad5e94fc72b6b",
                      "keywords": [
                        "VLAN"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "链路聚合": {
                      "node_id": "network-9f63af019f97456bbf2da57a02268d26",
                      "keywords": [
                        "链路聚合"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "STP": {
                      "node_id": "network-47c1720cca854491a63065893b444aa0",
                      "keywords": [
                        "生成树",
                        "STP"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  }
                ],
                "keywords_must": [],
                "keywords_forbid": []
              }
            },
            {
              "路由": {
                "node_id": "network-2bdf012b3e71446da96b483fb9b9cdc4",
                "keywords": [
                  "路由"
                ],
                "children": [
                  {
                    "RIP": {
                      "node_id": "network-86a74a86c4634c7f991963d8c39c8200",
                      "keywords": [
                        "RIP",
                        "距离矢量路由协议"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "OSPF": {
                      "node_id": "network-460e4f45b1dc4746a5e6d53df073d8f3",
                      "keywords": [
                        "OSPF"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "ISIS": {
                      "node_id": "network-872fb874602d49aeaf479aa555f768f7",
                      "keywords": [
                        "ISIS"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "BGP": {
                      "node_id": "network-d6e6178da70c4c488b4e6137a6f4f039",
                      "keywords": [
                        "BGP"
                      ],
                      "children": [],
                      "keywords_must": [
                        "BGP",
                        "自治系统间的路由协议",
                        "边界网关协议"
                      ],
                      "keywords_forbid": [
                        "RIP",
                        "OSPF",
                        "内部网关协议"
                      ]
                    }
                  },
                  {
                    "路由策略": {
                      "node_id": "network-bfec537cc4e74fc0bde6968570bb0bda",
                      "keywords": [
                        "路由策略"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  }
                ],
                "keywords_must": [],
                "keywords_forbid": []
              }
            }
          ],
          "keywords_must": [],
          "keywords_forbid": []
        }
      },
      {
        "网络高阶": {
          "node_id": "network-fd72367657724abd93fd0e6c1b1584fc",
          "keywords": [],
          "children": [
            {
              "PPP": {
                "node_id": "network-08302221308e40b38de8cf131dad13ad",
                "keywords": [
                  "PPP"
                ],
                "children": [
                  {
                    "PPP概述": {
                      "node_id": "network-a4dd1c4a69364d6dba624adaeafbafcb",
                      "keywords": [
                        "PPP概述"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "PPP协议内容": {
                      "node_id": "network-aa317ed09bf14c20bb86a1a08d5ec006",
                      "keywords": [
                        "PPP工作过程"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  }
                ],
                "keywords_must": [],
                "keywords_forbid": []
              }
            },
            {
              "VRRP": {
                "node_id": "network-8ef0493e96804c9aa6696c9c8c1ae3ca",
                "keywords": [
                  "VRRP"
                ],
                "children": [
                  {
                    "VRRP概述": {
                      "node_id": "network-5d740cb0d9a8459f88543a83b6c7c5e8",
                      "keywords": [
                        "VRRP概述"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "VRRP作用": {
                      "node_id": "network-ca8d4d21ad474dfd83573e883cd821d5",
                      "keywords": [
                        "VRRP作用"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "VRRP配置": {
                      "node_id": "network-f8fb04c24a4e4d4dad049a963e1acdba",
                      "keywords": [
                        "VRRP配置方法"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  }
                ],
                "keywords_must": [],
                "keywords_forbid": []
              }
            },
            {
              "QoS": {
                "node_id": "network-c52d5bcef40f45c5bc8a3941c73d2750",
                "keywords": [
                  "Qos"
                ],
                "children": [
                  {
                    "QoS概述": {
                      "node_id": "network-40f0e24cb89b479c82163e686b1271c4",
                      "keywords": [
                        "Qos概述"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "QoS分类": {
                      "node_id": "network-c0196e2fe2e846bc8a4c9bb338221528",
                      "keywords": [
                        "Qos分类"
                      ],
                      "children": [],
                      "keywords_must": [
                        "QoS",
                        "服务质量"
                      ],
                      "keywords_forbid": [
                        "QoE"
                      ]
                    }
                  }
                ],
                "keywords_must": [],
                "keywords_forbid": []
              }
            },
            {
              "组播": {
                "node_id": "network-5cacb51f76b1406380810dfca6aa8ecf",
                "keywords": [
                  "组播"
                ],
                "children": [
                  {
                    "组播概述": {
                      "node_id": "network-62329d0f20164e04ab46de5bb10ac4da",
                      "keywords": [
                        "组播概述"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "组播的工作原理": {
                      "node_id": "network-0d31ea1646204361b903ff004a3a86c4",
                      "keywords": [
                        "组播工作原理"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  },
                  {
                    "组播协议": {
                      "node_id": "network-4ef98f1a9632470c9983ab346a18bc73",
                      "keywords": [
                        "组播协议"
                      ],
                      "children": [],
                      "keywords_must": [],
                      "keywords_forbid": []
                    }
                  }
                ],
                "keywords_must": [],
                "keywords_forbid": []
              }
            }
          ],
          "keywords_must": [],
          "keywords_forbid": []
        }
      }
    ],
    "keywords_must": [],
    "keywords_forbid": []
  }
}