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Introduction to WLAN
WLAN Deployment
WLAN deployment is affected by technical factors and non-technical factors. Technical factors include signal interference and wired network quality. Non-technical factors include local laws and property management policies. Before deploying a WLAN, ensure that:
- The 2.4 GHz and 5 GHz frequency bands are allowed by local laws.
- The property management policy permits WLAN deployment.
WLAN Infrastructure
As shown in Figure 2-1, a WLAN consists of access points (APs), PoE switches, access controllers (ACs), Remote Authentication Dial In User Service (RADIUS) server, and network management system (NMS).
- AP: WLAN access device. Huawei provides a series of fit APs to meet indoor and outdoor networking requirements.
- PoE switch: upstream devices for APs. It provides data switching and power for APs. If only one AC is required and the AC has PoE ports, the PoE switch is not required.
- AC: manages APs and controls the rights of WLAN users.
- RADIUS server: authenticates WLAN users and assigns rights to them. The RADIUS server is installed on the SPES server.
- NMS: manages APs and ACs. It monitors status of ACs and APs in real time, processes alarms, and analyzes data.