Introduction to the role and functions of switches

A switch is a network device used to connect different network devices or nodes and achieve data transmission between them. Its function and function are as follows:

Extended network: Switches can connect multiple network devices or nodes, expanding the network range.

Improving network performance: Switches can recognize and store the address of target devices, quickly forward packets, and improve network performance.

Isolation and protection: Switches can implement virtual local area networks (VLANs) to isolate different devices or nodes and protect network security.

Implementing network management: Switches can support network management protocols such as SNMP and RMON, making it convenient for administrators to manage the network.

Support high-speed transmission: Switches can support multiple transmission rates, such as 10M, 100M, 1000M, etc., to meet the needs of different networks.

Realize remote access: The switch can support protocols such as PPPoE, PPTP, GRE, etc., to achieve remote network access.

• The working principle of the switch
• How does a switch work