Comprehensive Explanation of wired and wireless access technology

Wireless access technology is worth learning a lot. Here we mainly introduce wired and wireless access technology. To support the next generation of applications, most medium market organizations will need to upgrade the LAN.

As the most basic work, they should migrate from the shared hub technology to the exchange-type infrastructure. In the process of accurately providing next-generation applications, the 10 Mbps shared bandwidth hub in the wiring room must be replaced by an Ethernet/Fast Ethernet 10/100 Mbps) or a Gigabit Ethernet 1000 Mbps switch. Because these switches use Traditional Ethernet protocols and can be deployed without professional knowledge, this will not cause too much interference. Unlike a hub that sends a group to all connected ports, a vswitch only sends the group to one port-the port connected to the group destination. This not only reduces the total group traffic on the network, but also enhances the overall security, because the group will only reach its target port. In addition, the bandwidth and intelligence of the vswitch are higher than those of the hub. The vswitch also provides a predefined QoS level. The Hub neither identifies different traffic types nor provides the necessary bandwidth and response time for strategic applications.

Port to a multi-layer advanced Switch

For many medium-sized market environments with hubs or Ethernet/Fast Ethernet switches, you also need to port them to multi-layer switches with higher performance. The reason for doing so is simple: with the increase of multi-point traffic and the launch of applications requiring a large amount of bandwidth, the network is facing increasing pressure. Obviously, bandwidth and intelligence must be added to the backbone network or the top of the stack. For most Ethernet environments, the next step is to port to a multi-layer Gigabit Ethernet switch.

The Gigabit Ethernet switch helps eliminate traffic bottlenecks at the network edge and its core. With a full set of Cisco switch products, medium market organizations can make informed choices based on special traffic and budget requirements to ensure continuous increase in speed and feature enhancement.

Integrate wireless with wired LAN

Wireless access technology is an important supplement to many medium-sized market environments. In a high-performance switching environment, the wireless access technology can provide Ethernet-level speed, so that in the open area of the campus network, or you need to access a large number of users through the network in high-density areas such as auditoriums and conference rooms to provide a high speed of 11 Mbps. Generally, a wireless network cannot replace a wired LAN. However, it can greatly improve the availability and scalability of the existing network. Many successful medium-sized market implementation examples show that wireless access technology can not only improve management and learning performance, but also save costs.

Portable Computing: connect more users with less connections

In the medium market, wireless access technology enables users to achieve full PC portability and location independence. With wireless access technology, the company can place computer resources anywhere as needed without providing hard-line connections for each computer. With WLAN, a hard entry connected to a wireless access point can provide network access points for multiple PCs with a WLAN adapter. This configuration not only breaks through the location restrictions of the hard line structure, but also improves the utilization of PC resources. Therefore, the notebook can be carried with you and used anywhere. In the ever-changing medium market environment, wireless access technology can also reduce the cost and complexity of reconfiguration of various facilities.

Cost-effective mobile Internet access

With the help of wireless access technology, medium-sized market companies can quickly and economically and effectively provide broadband functions without having to go through expensive rewiring processes. For many enterprises today, there is no 5th class cable in their existing buildings. It is not worthwhile to provide ubiquitous Internet access. If they plan to build high-grade copper wires or optical fiber cables in old-fashioned brick and tile buildings, they will not only have to pay high cabling costs, but also have to pay extremely high environmental costs, such as asbestos processing. Because WLAN does not need to install new cables, this problem can be effectively solved. WLAN can also reduce costs and improve management functions. After implementing WLAN, medium market companies will be able to immediately announce or check excessive inventory, send emails, and communicate more conveniently with support organizations or customers. If an employee moves to another office or creates a temporary factory, wireless access technology not only adapts to these changes immediately, but also does not need to build new cables or change the existing cable infrastructure.

Integration of remote sites and buildings

Wireless access technology is very useful for remote sites because they can connect to facilities in a certain area. The wireless bridge can connect a hard-line Ethernet to quickly and effectively integrate remote sites with users. This technology provides a line-of-sight bridge antenna with a maximum distance of 25 miles). The transmission rate is higher than the T1/E1 line of the building, and the cost is far less than laying the cable or paying the monthly usage fee. As shown in figure 1 and figure 2, a wireless point-to-point or point-to-point bridge can connect to a building or office in a city or campus network. Wireless Bridges allow multiple buildings to share an Internet high-speed link without using circuits or dedicated lines.

In addition, wireless bridging can greatly reduce the cost of the leased line to achieve greater benefits. In some cases, wireless access technology can also be provided in previously inaccessible scenarios, such as buildings separated by water bodies, public places, or other insurmountable physical barriers. Wireless bridging is not affected by bad weather and does not require licenses from FCC or other agencies.