Brief Introduction to 802.11n Wireless Network Management

Managers are also troubled by the complexity of the network. Let's talk about 802.11n wireless network management. Due to the coexistence of multiple networks, 802.11n wireless network management is another headache for network administrators. Three comments are listed below for your reference.

Although wireless networks have always had unpredictable features, the influence of external factors on it will also be magnified by the joint option of 802.11n end users-there are more than 5000 approved WiFi devices, and this number continues to grow.

These 5000 customers have their own unique features and can respond to changes and competition for wireless signals and different bandwidth conditions. In addition, the customer's configuration is adjusted due to the constantly changing coverage and packet loss of unauthorized channels.

Previously, the requirement for wireless network reliability was not strong. After the 802.11n standard is recognized, wireless technology is becoming a basic strategic network in which users require more and more stable services. 802.11n wireless network management becomes increasingly difficult. Therefore, customer troubleshooting has become the most distressing issue for network administrators. For network administrators who want to align the quality of wireless services with the quality of wired networks, the management of wireless frequency is a learning.

In terms of operability and Fault Handling complexity, wireless management tools neither keep up with the development of wireless LAN technology nor meet users' requirements on connectivity. Most tools still rely on reactive troubleshooting: for example, when a user reports a problem, the technician tries to reconstruct the architecture, then point out the cause of the problem-and such a solution is undoubtedly inefficient in the ever-changing wireless environment. It takes a lot of time to find and fix wireless network problems, which not only reduces the productivity of enterprises, but also brings a lot of money. How to solve the existing 802.11n wireless network management problems has become the focus of administrators.

To save money and ensure network reliability, the following three changes can be made to 802.11n wireless network management today:

First, management needs to be proactive and provide service assurance for users: network users and technical support must have one way to confirm that their wireless networks can meet the performance standards of applications, you can locate potential problems before reporting problems.

Second, the network needs to track detailed wireless transmission records, so that if there is a problem, you can quickly find the cause.

Third, as the network grows, it is impossible to rely on human intuition to solve the problem. On the contrary, the network must have financial data and interfaces-rather than relying on human intuition. You need to forcibly apply the problem discovered by tools to network expansion.

Service Assurance is relatively easy to implement in the wired Ethernet world. In a wired network, the transmission path is clearly defined and the endpoint remains static. Network administrators can run end-to-end tests to ensure that the Network is smooth. In the wireless network world, the situation is completely different, because there is uncertainty in the wireless network from the Controller to the access point. In addition, wireless signal links are constantly changing, and customer devices are also subject to uncertainty.

The next-generation wireless architecture must use the access point itself to inject traffic. In this way, each access point is like a virtual Client Connected to other points. It can send real data in the same frequency band and act as a backend security architecture. Unlike a manual test, a virtual access point can run 24/7 to measure the accurate performance of the network on a daily or weekly basis. Because it uses the access point, its size can also expand with the expansion of the network.

When a problem occurs, the network administrator needs to reconstruct the network status to understand the cause of the problem. This requires a database that records the overall network situation and the wireless frequency. In essence, it is necessary to integrate the wireless network problem detection function into the architecture, it also has a scalable storage and retrieval mechanism.

To achieve these functions, the architecture required by the wireless network requires that the access point is in the same frequency band, and the points and points must be interconnected by the proximity advantages. In this way, the application can run smoothly to ensure that users can enjoy network services. Proactive wireless management allows network administrators to easily cope with 802.11n wireless network management issues.