In order to meet the ever-increasing demand for bandwidth, 10G, 40G and 100G Ethernet standards have been proposed successively in recent decades. Now, the 10 Gigabit Ethernet card has become a household name. It has the advantages of high speed, low cost, high reliability, easy installation, easy maintenance, and strong upgradeability. It is a very popular LAN hardware. This tutorial will introduce the 10G Ethernet card in detail.
10G Ethernet standard
The 10G Ethernet standard was drafted by the IEEE 802.3ae working group. The purpose is to extend the 802.3 protocol to enable it to transmit data at a rate of 10Gbps; to extend the application range of Ethernet to support WAN connections.
Application of 10G Ethernet Card
10G Ethernet cards have very broad applications in local area networks, metropolitan area networks and wide area networks.
10G Ethernet card in LAN
Ethernet is the most widely used technology in high-performance LAN environments. Like Gigabit Ethernet cards, 10G Ethernet cards also support single-mode or multi-mode fiber. The use of 10G Ethernet cards allows network operators to more freely choose the location of the data center, and can support multiple campus networks within 80 km at the same time. In the data center, low-cost multimode optical fibers can be used as the backbone of the 10G network between switches and switches, switches and servers. After the 10G backbone network is built, operators can provide high-bandwidth services such as video streaming and medical images. The following figure is an example of 10G local area Ethernet:
10G Ethernet card in metro/storage area network
Ethernet has the characteristics of low cost, wide application and backward. In metro Ethernet, data packets can be output from the Ethernet port on the server side, through the transmission network to the copper cable, and finally to the user terminal. There is no need to disassemble or convert the data frame in the middle. The entire metro area is Ethernet. network. 10G Ethernet card can guarantee this kind of seamless connection in function. In 10G metropolitan area Ethernet, the network nodes between the server side and each end station can all adopt 10G Ethernet card switching equipment, or can adopt the transmission equipment supporting DWDM technology to support intermediate data transmission.
10G Ethernet card in WAN
The 10G Ethernet card can connect the Internet and the general network through the SONET/SDH network at a high speed. Because the 10G Ethernet card has a WAN network port, this connection is very convenient and low in cost. It should be noted that when a 10G Ethernet card is connected to the Internet through a SONET/SDH network, issues such as security and management in network access also need to be considered.
Concluding remarks
The 10G Ethernet card not only has a higher transmission rate, but its transmission distance is also greatly improved. It can support both single-mode fiber connection and multi-mode fiber connection. The transmission distance of 10G Ethernet card using single-mode fiber connection can reach 80km. . In general, 10G Ethernet technology basically inherits Ethernet, Fast Ethernet and Gigabit Ethernet technology, so it has great advantages in user penetration, ease of use, network interoperability and simplicity. .