SBS-PFSK165-3BSE027778R1-VP74201-933CW07 交换机在端口上接受计算机发送过来的数据帧

描述

SBS-PFSK165-3BSE027778R1-VP74201-933CW07 交换机在端口上接受计算机发送过来的数据帧

以太网交换机是基于以太网传输数据的交换机，SBS-PFSK165-3BSE027778R1-VP74201-933CW07以太网采用共享总线型传输媒体方式的局域网。以太网交换机工作于OSI网络参考模型的第二层（即数据链路层），是一种基于MAC地址识别、完成以太网数据帧转发的网络设备。

以太网交换机的结构是每个端口都直接与主机相连，并且一般都工作在全双工方式。交换机能同时连通许多对端口，使每一对相互通信的主机都能像独占通信媒体那样，进行无冲突地传输数据。

以太网交换机的工作原理是交换机在端口上接受计算机发送过来的数据帧，根据帧头的目的MAC地址查找MAC地址表然后将该数据帧从对应端口上转发出去，从而实现数据交换。交换机分割冲突域，每个端口独立成一个冲突域。每个端口如果有大量数据发送，则端口会先将收到的等待发送的数据存储到寄存器中，在轮到发送时再发送出去。

以太网交换机应用最为普遍，价格也较便宜，档次齐全，因此，应用领域非常广泛。从几个到几十个端口都有，实质上就是一个多端口的网桥。另外，它的端口速率可以不同，工作方式也可以不同。

此外，SBS-PFSK165-3BSE027778R1-VP74201-933CW07还有快速以太网交换机、千兆以太网交换机和万兆以太网交换机等，这些交换机采用不同的协议标准或传输介质，但它们的基本工作原理和以太网交换机类似。

总之，以太网交换机是局域网中非常重要的网络设备之一，它能够实现数据的高速传输和交换，提高网络的性能和可靠性。

SBS-PFSK165-3BSE027778R1-VP74201-933CW07 交换机在端口上接受计算机发送过来的数据帧

Ethernet switch is based on Ethernet data transmission switch, SBS-PFSK165-3BSE027778R1-VP74201-933CW07 Ethernet using the shared bus transmission media mode of the local area network. Ethernet switch works at the second layer (data link layer) of OSI network reference model. It is a network device based on MAC address identification and Ethernet data frame forwarding.

The structure of the Ethernet switch is that each port is directly connected to the host, and generally works in full-duplex mode. The switch can communicate with many pairs of ports at the same time, so that each pair of hosts communicating with each other can transmit data without conflict as if they were exclusive communication media.

The working principle of Ethernet switch is that the switch accepts the data frame sent by the computer on the port, searches the MAC address table according to the destination MAC address of the frame header, and forwards the data frame from the corresponding port to achieve data exchange. The switch divides conflict zones and creates an independent conflict zone for each port. If a large amount of data is sent to each port, the port will first store the received data waiting to be sent to the register, and then send out when it is the turn to send.

Ethernet switches are the most widely used, the price is also cheaper, the grade is complete, therefore, the application field is very wide. From a few to dozens of ports, it is essentially a multi-port bridge. In addition, its port rate can be different, the way it works can also be different.

In addition, SBS-PFSK165-3BSE027778R1-VP74201-933CW07 also has fast Ethernet switches, Gigabit Ethernet switches and ten Gigabit Ethernet switches, etc. These switches use different protocol standards or transmission media, but their basic working principle is similar to Ethernet switches.

In short, Ethernet switch is one of the most important network equipment in local area network, which can realize high-speed data transmission and exchange and improve the performance and reliability of the network.