No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

S12700 V200R010C00 Configuration Guide - WLAN-AC

This document describes native AC (hereinafter referred to as WLAN AC) configuration procedures and provides configuration examples.
Rate and give feedback :
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
WLAN Architecture

WLAN Architecture

A WLAN has a wired side and a wireless side. On the wired side, an AP connects to the Internet using Ethernet. On the wireless side, a STA communicates with an AP using 802.11 standards. The WLAN architecture on the wireless side is the centralized architecture.

The centralized architecture includes the Fit AP architecture and the agile distributed architecture.

Fit AP Architecture

In Fit AP architecture, an AC manages and controls multiple APs (Fit APs) in a centralized manner, as shown in Figure 5-7.
Figure 5-7  Fit AP architecture
In Fit AP architecture, APs work together with an AC to implement wireless access.
  • The AC implements all security, control, and management functions. These functions include mobile user management, identity authentication, VLAN assignment, radio management, and data forwarding.
  • Fit APs implement wireless radio access, including radio signal transmission and detection response, data encryption and decryption, and data transmission acknowledgment.
  • The AC and APs communicate using Control and Provisioning of Wireless Access Points (CAPWAP). They can be connected across a Layer 2 or Layer 3 network.
In centralized architecture, wireless access involves the following operations:
  1. Fit APs establish CAPWAP tunnels with an AC. For details, see AP Online Process.
  2. STAs associate with a Fit AP. For details, see STA Access.

Agile Distributed Architecture

In agile distributed architecture, an AC manages and controls multiple central APs in a centralized manner, and each central AP manages and controls RUs, as shown in Figure 5-8.
NOTE:
A central AP cannot be cascaded with another central AP for extending the network.
Figure 5-8  Agile distributed architecture
In agile distributed architecture, RUs, central APs, and ACs work together to implement wireless access.
  • The AC implements all security, control, and management functions. These functions include mobile user management, identity authentication, VLAN assignment, radio management, and data forwarding.
  • RUs are connected to a central AP, and receive and send 802.11 packets through the air interface. A central AP takes over some of an AC's work to perform central management and collaboration of RUs, such as STA going online, configuration delivery, and STA roaming between RUs.
  • The AC and central APs, or central APs and RUs both communicate using CAPWAP. . The AC and central APs are connected across a Layer 2 or Layer 3 network, and central APs and RUs are connected across a Layer 2 network.
Wireless access includes the following steps:
  1. Central AP going online: Central APs set up CAPWAP tunnels with an AC. For details, see AP Online Process.
  2. RUs set up CAPWAP tunnels with a central AP. For details, see RU Online Process.
  3. STA access: STAs associate with a central AP or RU. For details, see STA Access.
Translation
Download
Updated: 2019-04-20

Document ID: EDOC1000142094

Views: 119647

Downloads: 119

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next