Setting up wireless roaming network and the problems needing attention

With the Ethernet network, multiple wireless APs can be connected together to set up a wireless roaming network to enable users to roam the entire network wirelessly. When a user moves from one location to another, and a wireless access point becomes weak or the access point is congested because of traffic, it can connect to the new access point without interrupting the connection to the network, which is very similar to the mobile phone that is used daily.
For wireless roaming, the respective wireless signal coverage areas formed by multiple APS must be cross-covered and seamlessly connected across the coverage areas. All APs are connected by twisted-pair wires to a wired backbone, forming a large area of service that is based on a fixed wired network, with wireless coverage as an extension. All wireless terminals access the network through the nearest AP, accessing the entire network resources. Wireless roaming coverage greatly expands the coverage of a single AP, thus breaking the limits of the coverage radius of the wireless network, allowing users to roam within the reach of the AP cluster without losing contact with the network and communicating without interruption.

Note: Wireless roaming in the configuration of wireless APs and ordinary wireless APs configuration is basically the same, but you should pay attention to the following aspects of the problem:
First, all wireless APs must use the same SSID.
Second, all wireless APs must use the same network segment's IP address and be in the same VLAN.
Third, wireless APs that signal to each other cannot use the same channel.
Because multiple AP signal coverage areas overlap each other, therefore, each AP coverage area of the channel must adhere to a certain specification, adjacent to the same channel can not cover each other, that is, the wireless APs in each other area can not use the same channel, otherwise it will cause the AP in the signal transmission of mutual interference, Thus reducing the efficiency of the AP. Of the 11 channels available, only 3 channels are completely non-covered, they are Channel 1, channel 6 and Channel 11, and using these channels as multi-cell coverage is the most appropriate. In addition, the wireless APs used to implement the wireless roaming network must use the same network name (SSID) and the IP address of the same network segment, otherwise the wireless client will not be able to implement the roaming feature.
In a wireless roaming network, the configuration of the client is identical to the configuration in the access point network. The user does not feel the switch between the wireless APs at all during the move.

Setting up wireless roaming network and the problems needing attention