WLAN support on the AR router

Definition:
A wireless local area network (WLAN) is a network that uses wireless channels such as radio waves, laser, and infrared rays to replace the transmission media used on a wired LAN.WLAN technology described in this document is implemented based on 802.11 standards. That is, a WLAN is a network that uses high-frequency signals (for example, 2.4 GHz or 5 GHz signals) as transmission media.
802.11 was originally a wireless LAN communications standard defined by the Institute of Electrical and Electronics Engineers (IEEE) in 1997. The IEEE then made amendments to the standard, forming the 802.11 family, including 802.11, 802.11a, 802.11b, 802.11e, 802.11g, 802.11i, and 802.11n.
Purpose:
Wired LANs use wired cables or optical fibers as transmission media, which are expensive and have fixed locations. As people have increasing requirements on network mobility, wired LANs cannot meet these requirements. WLAN technology is then developed. Currently, WLAN has become a cost-efficient network access mode. WLAN technology allows you to easily access a wireless network and move around within the coverage of the wireless network.
Benefit:
- High network mobility: WLANs can be connected easily, which is not limited by cable and port positions. WLANs especially apply to scenarios such as office buildings, airport halls, resorts, hotels, stadiums, and cafes.
- Flexible network deployment: WLANs can provide wireless network coverage in places where cables are difficult to deploy, such as subways and highways. This solution reduces cables, offers ease of implementation at a low cost, and has high scalability.

For details, see WLAN-AC Configuration Guide .

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