我打算建立一个小型办公网络。根据下面的文章，它提到我应该为我的隔间的所有 LAN 点使用 switch，但我很困惑。
交换机如何为每个机器插件下发IP地址？因为交换机不像路由器，也不提供DHCP服务。
Building a Small Office Network: The Difference Between Switches and Routers
When building a small office network, the two most essential pieces of equipment you will need are switches and routers. Though they look similar, the two devices perform different functions in a network.
Switches connect multiple devices (computers, printers, servers) on the same network within a building or campus. A switch enables connected devices to share information and talk to each other. Building a small office network isn’t possible without switches to tie devices together.
Routers tie multiple networks together. When building a small office network, you’ll need one or more routers. A router connects your networked computers to the Internet. This enables all connected computers to share one single Internet connection. A router acts as a dispatcher, choosing the best route for your information to travel. It connects your business to the world, protects information from security threats, and can even decide which computers get priority over others.