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
MAN aggregate
network
IP backbone
BAS
AP
AP AP
AP
WLAN NMS
RADIUS server
Aggregate
switch
AP Manages wireless channels and controls access of wireless stations (STAs). An
AR1200 functions as an AP.
WLAN NMS Uses the Simple Network Management Protocol (SNMP) or TR069 to manage APs.
The WLAN NMS is provided by Huawei.
BAS Provides the authentication and accounting functions.
A wireless link is established between a STA and an AP in the following process:
1. Multiple APs on the WLAN periodically send Beacon frames. When a STA receives
Beacon frames from multiple APs, it selects an AP as the access device.
2. The selected AP performs 802.11 authentication for the STA. After the STA is
authenticated, it sends an association request to the AP. The AP forwards the association
request to the AC. The AC determines whether to allow the STA to join itself. If the STA
is allowed to join the AC, the AC sends a STA configuration request message to the AP.
3. The STA triggers 802.1x authentication by dialing. After the STA is authenticated by the
AP, it is associated with the AP.
Terms
l STA
A STA is a computer with a wireless network adapter.
l AP
Huawei AR1200 Series Enterprise Routers
Configuration Guide - WLAN 1 WLAN Configuration
Issue 03 (2012-01-06) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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