Analyze the working principle of enterprise-level switches from different perspectives

The following article will conduct a careful study of enterprise-level switches. I believe many people do not know much about enterprise-level switches, so this article will conduct a detailed study and research. I hope you can get help first.

1. enterprise-level switches

Enterprise-level switches are a type of high-end switches. They generally adopt a modular structure and can be used as the backbone of an Enterprise Network to build a high-speed LAN. Therefore, they are usually used at the top layer of an enterprise network. Enterprise-level switches can provide customized services, priority queue services, and network security control, and quickly adapt to the needs of data growth and change to meet user needs.

For networks with more requirements, enterprise-level switches can not only transmit massive data and control information, but also have hardware redundancy and software scalability to ensure reliable network operation. This type of switch clearly shows its own requirements from its location. At least the bandwidth and transmission rate are much higher than the backplane capacity, therefore, enterprise-level switches are generally Ethernet switches over 1 Gigabit.

Enterprise-level switches generally use fiber-optic ports to ensure high transmission rates. So what kind of switch can be called an enterprise-level switch? To be honest, there is no clear standard, but we usually think so now.

If the switch is used as the backbone switch of an enterprise, the switch that can support more than 500 information points for large-scale enterprise applications is an enterprise-level switch. 7 shows a modular Gigabit Ethernet switch of youxun, it belongs to enterprise vswitches.

Enterprise switches can also be connected to a large chassis. This chassis product usually supports many different types of components, such as fast Ethernet and large network relay, FDDI concentrator, licensing ring MAU and router. Enterprise switches are useful when building enterprise-level networks.

Especially for systems that need to support some network technologies and earlier versions, chassis-based equipment usually has very powerful management features, so it is very suitable for enterprise network environments. However, the cost of chassis-based equipment is very high, and few small and medium-sized enterprises can afford it.

2. Campus Network Switch

Campus network switches, which are rarely used in large networks and are generally used as backbone switches of networks. This type of switch provides fast data exchange capability and full duplex capability, provides intelligent features such as fault tolerance, and supports multiple functions such as expansion options and VLAN in layer-3 switching.

Such enterprise-level switches are often used for campus networks. In fact, they do not have to be applied to campus networks. They only indicate that they are mainly used in large-scale networks with scattered physical distances. Because the campus network is relatively scattered and the transmission distance is relatively long, in the backbone network segment, such switches usually use fiber or coaxial cable as the transmission medium, of course, the switch also needs to provide SC Optical Fiber port and BNC or AUI coaxial cable interface.

A department-level switch is a switch for a department-level network. It is much smaller than the previous two types of networks. This type of switch can be fixed configuration, can also be module configuration, in addition to common RJ-45 twisted pair interface, also with fiber interface.

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Department-level switches generally have outstanding smart features and support port-based VLAN Virtual LAN). This allows for port management and any full-duplex or half-duplex transmission mode to control traffic, with the network management function, you can configure, monitor, and test switches through the serial port of a PC or through the network. If it is used as a backbone switch, it is generally considered that the switch of a medium-sized enterprise that supports less than 300 information points is a department-level switch.

Enterprise-level switches are ideal for traditional hub products. They are generally fixed configurations and are equipped with a certain number of 10Base-T or 100Base-TX Ethernet ports. The switch simply decides to forward information based on the MAC address in each package. This forwarding decision generally does not consider the deeper information hidden in the package.

Different from a hub, the forwarding latency of A vswitch is very small, and the operation is similar to the performance of a single LAN, far exceeding the forwarding performance between common Bridging networks. Working group switches generally do not have the network management function. If they are used as backbone switches, they are generally considered to support switches within 100 information points as working group-level switches.