Which network device is working at the data link layer in a computer network?
This article mainly introduces which network equipment is working in the data link layer in the computer network. It is very detailed and has a certain reference value. Interested friends must finish reading it!
The network connection device that operates at the data link layer is the switch. The switch can provide an exclusive electrical signal path for any two network nodes of the access switch. The most common switch is the Ethernet switch.
This article operating environment: windows10 system, thinkpad T480 computer.
The network connection device that operates at the data link layer is the switch.
What is a switch?
Switch (Switch) means "switch" is a network device used to forward electrical (optical) signals. It can provide an exclusive electrical signal path for any two network nodes of the access switch. The most common switch is the Ethernet switch. Other common ones are telephone voice exchange, fiber optic switch and so on.
Characteristics of the switch:
Because the switch has a high-bandwidth internal fabric and a back bus, and all the ports are attached to the back bus, packets can be transmitted directly and quickly to the destination node rather than all nodes through the internal fabric. In this way, network resources are not wasted, resulting in very high efficiency. At the same time, in this process, the security of data transmission is very high, and it is welcomed and generally praised by users.
Unlike the same bandwidth shared by each port of the hub, the data bandwidth of the switch is exclusive. Under this premise, the switch can transmit data to multiple nodes in the same period of time, and each node can enjoy a fixed part of the bandwidth as an independent network segment. in this way, there is no need to compete with other devices for utility.
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