Entry level switch

- Jun 25, 2019-

     The application of entry-level switches is mainly focused on small working groups with 8 to 16 ports, which are suitable for low-cost situations with little need for expansion and management. They are often used instead of hubs to provide higher bandwidth and more reliable connections than hubs. people

     Instead of buying entry-level switches separately, they often buy them together with other level switches to form a complete storage solution.

Initial switches provide a limited level of port cascading capability. If users use such low-end devices alone, they may encounter some manageability problems. Workgroup-level optical fiber switches provide the ability to cascade many switches into a large-scale Fabric.

      By connecting one or more ports of two switches, all ports connected to the switch can see the unique image of the network, and any node on this Fabric can communicate with other nodes. Essentially, through cascade switches, a large, virtual, distributed switch can be built, and it can span a very large distance. Fabric built by multiple switches looks like a Fabric made up of separate switches. Ports on all switches can view and access all other ports on Fabric as if they were accessing a local switch. Unified name servers and management services allow you to view and modify all Fabric information through a separate interface


    An important factor in creating distributed Fabrics is the bandwidth of connections between switches. The effective rate between any two ports is affected by the effective bandwidth of the connection between switches. It may be necessary to use the connection between multiple switches to maintain the necessary bandwidth. Working Group Fiber Channel Switches are numerous and more versatile. Users can use workgroup switches in many ways, but the most widely used area is small SAN.

    Such switches can provide more ports by connecting interconnected lines between switches. The interconnected lines between switches can be created on any port on the Fiber Channel Switch. However, if you plan to use multiple vendors'products, you must ensure that the equipment is interoperable. Core-level optical switch core-level switch (also known as steering device) is generally located in the center of large SAN, which connects several edge switches to form a SAN network with hundreds of ports. Core switches can also be used as separate switches or edge switches, but their enhanced functionality and internal structure make them work better in the core storage environment. Other functions of the core switch include supporting protocols other than optical fibers (such as InfiniBand), supporting 2Gbps optical fibre channels, advanced optical fibre services (such as security, relay and frame filtering).

    Core-level optical switch usually provides many ports, from 64 ports to 128 ports to more. It uses very wide internal connections to route data frames with maximum bandwidth. The purpose of using these switches is to establish a wider network coverage and provide wider bandwidth. They are designed to route frame signals with the shortest delay between multiple ports at the fastest possible speed. In addition, the core optical fiber switches often use "blade-based" hot plug-in circuit boards: as long as the switch plug-in board is inserted in the cabinet, new functions can be added, on-line maintenance can also be done, and on-line staged expansion can be achieved. Many core-level switches do not support arbitration rings or other direct-link devices, and they only care about core switching capabilities.


     Because availability is the most important factor in the whole environment, people are willing to spend more money on redundancy. All components of high redundancy switches are redundant, eliminating single point of failure completely, and guaranteeing very long normal running time. These expenses on redundancy are generally spent on high availability backboards, power supplies, redundant circuits and software to maintain availability. This type of switch has many logic circuits built in to deal with hardware failures inside the switch. In addition to redundancy, core-level fibre-optic switches support uninterrupted service-oriented software upgrades, which eliminates the need for system maintenance during upgrades. Alternating path is a redundancy level in the network. It can configure a flexible dual Fabric. This network completely eliminates single point of failure and avoids serious consequences of software or hardware errors, fires, natural disasters or operational errors.

     Core-level switches provide the highest reliability and port density. In data centers with a large number of fibre channel infrastructures, these products are almost invasive, centralized storage switches. Therefore, for most high availability networks, the dual-channel network built by the core optical fiber switch should be chosen.

      Shenzhen Leitong Technology Co., Ltd. is a joint venture between Hong Kong and China. It belongs to the Hong Kong-funded group OTU International Co., Ltd. (founded in 2005). It is a professional optical network equipment manufacturer integrating design, research, development, production and sales. At present, our products are exported to more than 60 countries all over the world, with customers in America, Europe, Australia, Asia and other regions. In order to expand the domestic market, Leitong Technology was established in 2008. With high-quality product solutions and elite technology development team, we have cooperated with large-scale communication equipment providers in Beijing, Hangzhou, Jinan and other regions. Our company provides all of them.

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