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    • PCH 15 Introduction to Wireless Networking 無線網絡簡介
      • Wireless LANs 無線局域網
      • Wireless Devices 無線設備
      • Wireless Standards 無線標準
      • Privacy and Security 隱私和安全
      • Wireless Networking Types 無線網絡類型
    • PCH 16  Internet Connectivity 互聯網連接
      • Internet Connectivity 互聯網連接
      • Networking  Internet Connectivity  聯網 Internet連接
      • Setting up a Network 建立網絡
  • HW2
  • HW3
    • Birthday Dictionaries 生日字典
      • Exercise 33  and Solution   練習33 和解決方案
      • Discussion topics 討論主題
      • Dictionaries 辭典
      • QUICK REVIEW 快速復審
      • MORE ON DICTIONARY KEYS 有關字典鍵的更多信息
      • String formatting 字符串格式
      • Solutions 解決方案
    • Tic Tac Toe Draw 井字遊戲抽獎
      • Exercise 27 and Solution 練習27 和解決方案
      • Concepts 概念
      • Solutions解決方案
    • Birthday Plots 生日情節
      • Exercise 36 and Solution 練習36和解決方案
      • Discussion 討論區
      • When to make plots 什麼時候作圖
      • Plotting libraries in Python 用Python繪製庫
      • Installing bokeh 安裝背景虛化
      • Using bokeh 使用散景
  • 心得
  • 自評 65 分
Networking  Internet Connectivity  聯網 Internet連接 << Previous Next >> HW2

Setting up a Network 建立網絡

The first and probably the most important step in deploying a wireless network is the planning phase. A site survey is the process of evaluating a network solution to deliver the required coverage, data rates, network capacity, roaming capacity, and quality of service.

部署無線網絡的第一步也是最重要的一步是規劃階段。 站點調查是評估網絡解決方案以提供所需覆蓋範圍，數據速率，網絡容量，漫遊容量和服務質量的過程。

Factors that affect the number of access points needed in a building include:

影響建築物所需接入點數量的因素包括：

  • The size of the building. 建築物的大小
  • The number and type of walls in the building and their composition. 建築物中牆壁的數量和類型及其組成。
  • The type of interference or obstructions between stations and the access point.
  • The presence of high-voltage equipment (microwaves, power transformers, air-conditioning/heating units, elevators, etc.). 站點與接入點之間的干擾或障礙類型。
  • Existing wired and wireless implementations. 存在高壓設備（微波爐，電源變壓器，空調/加熱裝置，電梯等）。現有的有線和無線實現。
  • Bandwidth requirements. 帶寬要求。

To connect your device to the Internet, you need to have two things. First, you must have an Internet access device (or modem) such as we described in the previous section. This is really dependent on your requirements and the ISP choices where you are located. The Internet service provider (ISP) you choose will determine the type of modem you need and will supply the customer-premises equipment (CPE) for the outside of the building. Next, you must provide your network with a router, which serves as the interconnection point from your local area network clients (LAN) to the ISP external network (WAN).

要將設備連接到Internet，您需要做兩件事。 首先，您必須具有上一節所述的Internet訪問設備（或調製解調器）。 這實際上取決於您的要求和您所在位置的ISP選擇。 您選擇的Internet服務提供商（ISP）將確定所需的調製解調器的類型，並將為建築物的外部提供客戶駐地設備（CPE）。 接下來，您必須為網絡提供一個路由器，該路由器用作從局域網客戶端（LAN）到ISP外部網絡（WAN）的互連點。

There are really only 11 steps to set up a small office, home office (SOHO) network:

設置小型辦公室，家庭辦公室（SOHO）網絡實際上只有11個步驟：

  1. Decide on the type of Internet connection you will use. The ISP you choose will determine the type of modem you need and whether you buy or lease it. For a small office or home office, your most obvious choices will most likely be fiber, cable, or DSL, although a satellite, WiMAX, or cellular connection might be viable. 確定您將使用的Internet連接類型。 您選擇的ISP將確定所需的調製解調器類型以及是否購買或租賃它。 對於小型辦公室或家庭辦公室，儘管衛星，WiMAX或蜂窩連接可能可行，但最明顯的選擇很可能是光纖，電纜或DSL。
  2. Determine how your workstations, often referred to as clients, will connect to the router. Will you use a wireless access point or wired Ethernet switch? 確定您的工作站（通常稱為客戶端）如何連接到路由器。 您將使用無線接入點還是有線以太網交換機？
  3. Choose the modem and router that will support your first two choices. 選擇將支持您的前兩個選擇的調製解調器和路由器。
  4. Set up the account with the ISP. They will come to your location to set up the CPE, including any wiring to the location where you determine the modem is to be placed. Whether you chose to lease or buy your own modem, the ISP usually offers a service to set up the connection between the modem and your LAN router. You also have the option of installing it yourself. 使用ISP設置帳戶。 他們將來到您的位置來設置CPE，包括到您確定要放置調製解調器的位置的任何佈線。 無論您選擇租賃還是購買自己的調製解調器，ISP通常都會提供一項服務來建立調製解調器與LAN路由器之間的連接。 您也可以選擇自己安裝它。
  5. Cable the modem and router together. 將調製解調器和路由器連接在一起。
  6. Configure the router and wireless access point (if used). 配置路由器和無線訪問點（如果使用）。
  7. Connect each client to the network (cabled or wireless) and verify they are working properly. 將每個客戶端連接到網絡（電纜或無線），並驗證它們是否正常運行。
  8. Configure each device to be part of the same workgroup or create a homegroup; this will allow you to configure each client to share resources like printers and file sharing. 將每個設備配置為同一工作組的一部分或創建一個家庭組； 這將允許您配置每個客戶端以共享打印機和文件共享等資源。
  9. Set up file and print sharing on each client designating which resources to share. 在每個客戶端上設置文件和打印共享，以指定要共享的資源。
  10. Test each client to verify they can reach the Internet. 測試每個客戶端以驗證他們可以訪問Internet。
  11. Test the resources you shared in step 9 to make sure they are connected. If everything is working, you have an effective, Internet-connected workgroup that can share resources internally, as well. 測試您在步驟9中共享的資源，以確保它們已連接。 如果一切正常，您將擁有一個有效的，與Internet連接的工作組，該工作組也可以在內部共享資源。

As you can see, step six asks you to configure a wireless router. Watch this video to see more explanation on how to configure a SOHO wireless router.

如您所見，第六步要求您配置無線路由器。 觀看此視頻，以了解有關如何配置SOHO無線路由器的更多說明。



Networking  Internet Connectivity  聯網 Internet連接 << Previous Next >> HW2

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