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HomeCommon ProblemWhat are the network devices that work at the data link layer?
What are the network devices that work at the data link layer?May 07, 2021 pm 02:09 PM
data link layerInternet equipment

The network connection device that works at the data link layer is a switch. The switch can provide an exclusive electrical signal path for any two network nodes connected to the switch. The most common switch is an Ethernet switch.

What are the network devices that work at the data link layer?

#The operating environment of this article: windows10 system, thinkpad t480 computer.

The network connection device that works at the data link layer is a switch.

What is a switch?

Switch means "switch" and is a network device used for forwarding electrical (optical) signals. It can provide an exclusive electrical signal path for any two network nodes connected to the switch. The most common switch is an Ethernet switch. Other common ones include telephone voice switches, fiber optic switches, etc.

Features of the switch:

Because the switch has an internal switching matrix and a back bus with high bandwidth, and all the ports are connected to this back bus, through the internal switching matrix, it can Data packets are transmitted directly and quickly to the destination node instead of all nodes, so that network resources are not wasted, resulting in very high efficiency. At the same time, during this process, the security of data transmission is very high, and it is welcomed and generally praised by users.

Unlike the hub where each port shares the same bandwidth, the data bandwidth of the switch is exclusive. Under this premise, within the same time period, the switch can transmit data to multiple nodes, and each node can be treated as an independent network segment and enjoy a fixed part of the bandwidth, so that there is no need to interact with other devices. It is a practical necessity to compete.

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