Introduction of pure Fiber Interface Ethernet Switch

Source: Internet
Author: User
Tags switches

Fiber-optic Ethernet technology is now the integration and development of two major communication technologies, namely Ethernet and optical network. It focuses on the advantages of Ethernet and optical network, such as wide application of Ethernet, low price, flexible networking, simple management, high reliability and large capacity of optical network. The high speed and large capacity of optical Ethernet eliminates the bottleneck of bandwidth existing between LAN and WAN, and will become a single network structure for future fusion of voice, data and video. Fiber-optic Ethernet products can implement WAN communication services in Ethernet packet format with the help of Ethernet devices. At present, optical Ethernet can realize the standard Ethernet speed of 10Mbps, 100Mbps and 1Gbps.

Fibre-optic Ethernet devices are based on layer 2nd LAN switches, layer 3rd LAN switches, SONET devices, and DWDM. Some companies are offering fiber-optic Ethernet switches, which have a variety of features to ensure quality of service (e.g., packet classification and congestion management). This product may require the following key technologies and performance: high reliability, high-end port density, service quality assurance and other functions. The

Fibre-optic Ethernet business is more cost-effective than other broadband access, but so far it has been used only in office buildings or in buildings where fibre optics have been laid. The strategic value of this new method of using Ethernet is not limited to cheap access. It can be used both for access networks and for local backbone networks in service provider networks. It can be used only on the 2nd floor, but also as an effective way to achieve layer 3rd business. It can support IP, IPX, and other legacy protocols. In addition, because it is still a LAN in nature, it can be used to help service providers manage the interconnection between enterprise LANs and enterprise LANs and other networks.

Access Scheme for fibre-optic Ethernet switches

as shown in the figure, the network core equipment is placed in the cell room or building room of the fiber-optic switch, the fiber switch through the optical fiber at 1000m/100m rate with the Internet edge routers or pooled switches, to achieve Community network Connect to the Internet. Fiber-optic switches are connected to the Optical Network unit or the built-in fiber Ethernet card that is placed in the user's home through the optical fiber and point-to-point mode, which enables users to access the Internet through fiber-optic high-speed. The link between the fiber switch and the optical Network unit is to select a single fiber bidirectional way.


Compared with existing LAN broadband access methods based on the 5-class line, this access scheme has the following characteristics: It is a low-cost FTTH solution; Save the floor switch, only the cell room is active node, reduce maintenance costs; single switch node in the cell room, effectively improve the switch port utilization; super high bandwidth, is 100 times times the ADSL; The network remote monitor each port photoelectric module, has the port isolation and the port bandwidth control function, the powerful Web server network management function. The program is particularly suitable for ordinary residential users, office buildings, schools, hospitals, etc., suitable for traditional telecom operators, resident network operators.

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