Wlan Features Supported By The Spu - Huawei quidway s7700 Configuration Manual

Quidway S7700 Smart Routing Switch
Configuration Guide - SPU
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5.1.2 WLAN Features Supported by the SPU

The SPU supports access controller (AC) management, access point (AP) management, Radio
Frequency (RF) management, WLAN access security, and WLAN QoS management.
AP Management
By default, an AP has no configuration after it is powered on. The SPU functions as an AC to
deliver the WLAN configuration to APs.
When the SPU functions as an AC, it can set up connections with APs in the following modes:
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RF Management
On a WLAN, the network environment changes frequently, and mobile obstacles or interference
from other radio frequencies (RFs) may affect transmission quality of radio signals.
The channels and transmit power of an AP must be adjusted to adapt to changes of the wireless
network environment. Manual adjustment increases maintenance costs; therefore, RFs are
managed by ACs in a WLAN system.
The SPU uses radio profiles to manage RFs.
Issue 01 (2011-07-15)
An AP is a bridge that connects STAs to a LAN and converts frames exchanged between
STAs and the LAN.
AC
An AC is a device that manages all APs in a WLAN. It can connect to an authentication
server and allow WLAN users to be authenticated by the authentication server.
SSID
A service set identifier (SSID) identifies a service set. A STA scans all wireless networks
and selects a wireless network based on the SSID.
Wireless medium
A wireless medium transmits frames between STAs. A WLAN system uses radios as
transmission media.
Service set
A service set is a combination of WLAN service parameters. You can configure multiple
service sets and bind them to a radio of an AP to configure and deliver WLAN services
quickly.
VAP
A visual access point (VAP) is a functional entity on an AP. You can create a VAP on a
radio interface of an AP by binding a service set to the radio.
Adding APs offline: AP attributes including the AP type, MAC address or serial number
(SN), AP profile, AP region, and AP upgrade file are configured on the AC before APs go
online. After an AP goes online, it uses the configured attributes.
Discovering APs in the whitelist: The AP whitelist and AP authentication mode are
configured on the AC. When an AP in the whitelist connects to the AC, the AC discovers
the AP, and the AP functions properly.
Discovering APs out of the whitelist: The AP whitelist and AP authentication mode are
configured on the AC. When an AP out of the whitelist connects to the AC, the AC adds
the AP to the list of unauthorized APs. After the AP identity is confirmed, the AP can
function properly.
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