The ring network switch is a special switch, because the mainstream ring network switches are all industrial switches, so it can generally be called an industrial-grade ring network switch. So, what exactly is an industrial ring network switch? Next, let's follow the editor of Feichang Technology to learn more about it!
The ring network, as its name implies, is a closed network loop, which is different from ordinary Ethernet switches. Once a ring is formed, a broadcast storm will be formed, and a link on the ring network will be disconnected, which will not affect the data forwarding on the network. Therefore, the ring network structure has its own advantages, such as redundancy and reliability.
A ring network uses a continuous ring to connect each device together. It can ensure that the signal sent on one device can be seen by all other devices on the ring. The ring redundancy refers to whether the industrial-grade ring network switch supports the interruption of the cable connection in the network. The industrial-grade ring network switch receives this information and activates its backup port to restore the network communication to normal operation. At the same time, the switch with 7 and 8 ports disconnected in the network, the relay is closed, and the indicator light sends an error alarm to the user. After the cable is repaired normally, the relays and indicator lights return to their normal state functions.
The industrial-grade ring network switch has a high-bandwidth back bus and internal switching matrix. All ports of the switch are connected to this back bus. After the control circuit receives the data packet, the processing port will look up the address comparison table in the memory to determine which port the NIC of the destination MAC is connected to, through the internal switch matrix The data packet is quickly transmitted to the destination port. If the destination MAC does not exist, it will be broadcast to all ports. After receiving the port response, the switch will "learn" the new address and add it to the internal MAC address table.
The use of industrial-grade ring network switches can also "segment" the network. By comparing the MAC address table, the switch allows only necessary network traffic to pass through the switch. Through the filtering and forwarding of the switch, the broadcast storm can be effectively isolated, reducing the occurrence of error packets and error packets, and avoiding sharing conflicts.
The switch can transmit data between multiple port pairs at the same time. Each port can be regarded as an independent network segment, and the network equipment connected to it enjoys the full bandwidth independently, without competing for use with other equipment. When node A sends data to node D, node B can send data to node C at the same time, and both transmissions enjoy the full bandwidth of the network and both have their own virtual connections. If a 10Mbps Ethernet switch is used here, then the total circulation of the industrial-grade ring network switch at this time is equal to 2×10Mbps=20Mbps.
In short, an industrial-grade ring network switch is a network device based on MAC address identification and capable of encapsulating and forwarding data packets. The switch can "learn" the MAC address and store it in the internal address table. By establishing a temporary switching path between the originator and the target receiver of the data frame, the data frame can directly reach the destination address from the source address.
Well, the above content is about what is the industrial ring network switch of Feichang Technology? The detailed explanation of this problem, I hope it can be helpful to everyone! Feichang Technology has been specialized in the R&D, production and sales of optical transceivers, industrial switches, optical fiber transceivers, protocol converters and other industrial communication equipment for 20 years. Welcome to come to understand and exchange.
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