Working principle: After any node of the switch receives the data transmission command, it quickly searches the address table stored in the memory to confirm the connection location of the network card with the MAC address and then transmits the data to the node. If the corresponding location is found in the address table, the transmission is performed; If not, the switch will record the address to facilitate the next search and use. Generally, the switch only needs to send the frame to the corresponding point, instead of sending it to all nodes like the hub, thus saving resources and time and improving the data transmission rate.
Transmission mode: How is the data transmitted in the switch? The simple principle is to transmit data through information exchange, which is the data transmission method of the switch. A long time ago, the hub could not achieve this effect. It used the sharing method for data transmission. It makes the hub unable to change the physical hardware to improve the rate of communication. The form of transmission in this way is also called “shared network transmission in communication. The hub is used as the connection device and has only one direction of data flow, so the efficiency of network sharing is very low. In this regard, the switch can solve this part of the problem. It can connect to the other computer, not limited to one computer, but can connect to multiple computers to transmit data. As long as the physical address of the computer network card is connected to the same switch, that is, the MAC address, is used for identification and memory.
Instead of broadcasting search, it can directly find the corresponding location of the MAC address and complete the communication of data transmission between two nodes without external interference through a temporary dedicated data transmission channel. As the switch also has a full-duplex transmission mode, it can also establish a temporary dedicated channel between multiple pairs of nodes to form a three-dimensional cross-data transmission channel structure.
This is an introduction to the Working Principle and Mode of Data Transmission by SShenzhen HDV Phoelectron Technology Co., Ltd. hope this article can help you to increase your knowledge. Besides this article if you’re looking for a good optical fiber communication equipment manufacturer company you may consider about us.
The communication products produced by the company cover:
Module: optical fiber modules, Ethernet modules, optical fiber transceiver modules, optical fiber access modules, SSFP optical modules, and SFP optical fibers, etc.
ONU category: EPON ONU, AC ONU, optical fiber ONU, CATV ONU, GPON ONU, XPON ONU, etc.
OLT class: OLT switch, GPON OLT, EPON OLT, communication OLT, etc.
The above products can support different network scenarios. For the above communication products, our company has a professional and strong R&D team to help customers with technical issues and a more thoughtful and professional business team to help customers with early consultations and work.