**交换机与路由器的区别：你知道吗？**

【监控交换机】监控专用POE交换机4口8路联千16路上兆POE交换机国标48V网线新品售价：75.00元 领券价：75元 邮费：0.00

在计算机网络中，交换机和路由器都是非常重要的设备，它们各自承担着不同的网络功能。虽然它们有时会被混为一谈，但实际上它们在功能、操作以及应用场景上存在显著的差异。 一、功能区别 1. 交换机（Switch）： 交换机主要作用在数据链路层，负责在同一局域网内进行数据包的快速转发。它的主要功能包括学习MAC地址、建立MAC地址表、数据帧的转发等。交换机能够通过识别不同网络设备（如电脑、服务器等）的MAC地址，在同一局域网内快速地传输数据。 2. 路由器（Router）： 路由器则主要工作在网络层，负责不同网络之间的数据包寻址和路由功能。它通过解析IP地址来区分不同的网络设备，并将数据包转发到目标网络的下一跳路由器，直到数据包到达目的地。此外，路由器还具有安全功能，如防火墙和访问控制等。 二、操作与应用的区别 1. 操作方式： 交换机通常在本地进行配置和管理，操作相对简单。而路由器则需要进行更为复杂的配置，包括设置路由表、访问控制列表等。 2. 应用场景： 交换机主要用于构建局域网（LAN），使网络内的设备能够高效地互相通信。而路由器则用于连接不同的网络（如校园网、企业网、不同地域的互联网等），实现不同网络之间的通信。此外，路由器在实现网络之间的隔离、访问控制和网络安全等方面发挥着重要作用。 **英文翻译** The Difference between Switches and Routers: Do You Know? In computer networks, switches and routers are both crucial devices that serve different network functions. While they may sometimes be confused, there are significant differences in their functionality, operation, and application scenarios. I. Functional Differences 1. Switch: A switch primarily operates at the data link layer, responsible for the rapid forwarding of data packets within the same local area network. Its main functions include learning MAC addresses, establishing MAC address tables, and forwarding data frames. Switches can quickly transmit data within the same local area network by identifying the MAC addresses of different network devices (such as computers, servers, etc.). 2. Router: A router mainly operates at the network layer, responsible for the addressing and routing of data packets between different networks. It distinguishes different network devices by resolving IP addresses and forwards data packets to the next-hop router in the destination network until the data packet reaches its destination. Additionally, routers also have security functions such as firewalls and access controls. II. Operational and Application Differences 1. Operation: Switches are typically configured and managed locally, with relatively simple operations. In contrast, routers require more complex configurations, including setting up routing tables, access control lists, etc. 2. Application Scenarios:

Switches are mainly used to build local area networks (LANs), enabling network devices to communicate efficiently with each other within the network. Routers, on the other hand, are used to connect different networks (such as campus networks, enterprise networks, and different geographically dispersed internet networks), enabling communication between different networks. Additionally, routers play a crucial role in achieving network isolation, access control, and network security.

【监控交换机】水星5口交换机S105C即插即用百兆5口交换机网络分线器分流器监控售价：100.68元 领券价：100.68元 邮费：0.00