How to build a multi-layer wireless network for unified network access?

Today, more and more products are joining the wireless family. Laptops, mobile phones, cameras, projectors, and other devices have become one of the indispensable office and communication devices, it is precisely because of its high mobility that many people rely more on wireless Internet access. Nowadays, wireless networks are not limited to one floor. Many office buildings, advanced hotels, large malls, and individual villas urgently need to implement a solution for unified wireless network access.

In addition, the use of wireless networks is also one of the information exchange methods used by small and medium-sized enterprises. However, setting up a set of multi-layer wireless devices is not as simple as we think. Buying some devices is just as simple as assembling them. Here there are many factors that have taken place before creating a multi-layer Wireless LAN, the main problems include the coverage of office wireless signals, the security of wireless networks, and the compatibility of wireless devices. Today, we will discuss with you how to implement a multi-layer wireless network environment in the office.

To build a multi-layer wireless network, we need to mention the following points: Device selection, cost control, and post-maintenance.

1. device Selection

The device contains many factors such as brand, price, performance, and positioning. Here we will give you a brief introduction. Currently, the main brands of wireless routers include network devices, Belkin, D-Link, TP-Link, Buffalo, H3C, and Cisco. The price also ranges from several hundred yuan to several thousand yuan. It is recommended that enterprise users choose products launched by various brands for enterprise users. In terms of product performance, 802.11g-based wireless router products are currently a good choice, because 802.11n-based products are not yet mature, and the compatibility of each product is also different from previous tests, in addition, the network card of the client cannot be unified, and the price of the 802.11n-based wireless router and network card is very expensive. Choosing a device doesn't necessarily only look at the brand, as long as it suits your enterprise's application needs.

2. Control Costs

For an enterprise, how to control investment costs and get a good Roi is a matter of great importance to every boss. When selecting a device, you should select the product type and quantity according to your actual environment in advance. For example, if an office area is scattered and there are many obstacles in the office environment, we should select a router with strong signal penetration capability.

3. Post-Maintenance

After selecting a product, the user also needs to consider factors such as after-sales service of the product, such as the service and firmware upgrade after the fault occurs, it is even necessary to consider the recoverability and recovery time of the entire network after the attack.

This is not only the need for unified network management, but also the significance of reducing costs. Different floors share a network interface through the main line. Each floor uses multiple APs for wireless network access.

1. Several APs are deployed on the same floor (the number of APS is determined based on the coverage range). Each AP accesses the trunk network through a wired connection.

2. Use a wired trunk connection between floors to Ensure network stability.

3. If the horizontal span is large, you need to add an AP but cannot connect to the trunk network through the Bridge.

The following describes how to set a Wireless AP:

1. "Network Parameters ". Set different IP addresses for each AP to avoid network address conflicts.

2. "Wireless Parameters"-"Basic settings ". Set the SSID of each AP to the same, which ensures access to the same wireless network.

3. "Wireless Parameters"-"Basic settings ". The AP that is placed adjacent to each other is configured with different frequencies and more than five frequencies are separated to avoid mutual interference.

4. "Wireless Parameters"-"Security Settings ". Set the same encryption authentication method and password for each AP.

Deployment skills:

1. Adjust the AP placement position and adjust the AP transmit power so that the adjacent AP coverage ranges overlap appropriately to reduce the signal blind zone.

2. PassivePOE power supply can be used to increase the flexibility of AP placement to achieve better wireless coverage.

This article aims to build a multi-floor wireless network. As we all know, the performance of the wireless network is greatly affected when encountering obstacles or other wireless signal interference. The networking topology described in this article is only applicable to typical environments. During the implementation of the wireless network planning and establishment, we need to conduct a field test to test the wireless signal and throughput, so as to select the appropriate number of APS to meet the actual application requirements.

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