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


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


S5720HI 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).
Typical Application Scenarios for Dual-Link Cold Backup

Typical Application Scenarios for Dual-Link Cold Backup

1+1 Dual-Link Cold Backup

In the AC+FIT AP network architecture, the AC manages and controls WLAN services for wireless users in a centralized manner. One AC usually controls hundreds of APs and over ten thousand STAs. When a fault occurs on the AC or the link between the AC and AP fails, the services of all users connected to the AC are interrupted. If dual-link cold backup is enabled, the standby AC controls the WLAN services for wireless users when a fault occurs on the active AC or the link between the active AC and AP fails. This reduces service interruption time.

As shown in Figure 21-2, AC1 and AC2 provide dual links for STAs. AC1 is the active device, serving AP1 and AP2. AC2 is the standby device. Each AP sets up a CAPWAP tunnel with AC1 and AC2 respectively. When the APs detect that AC1 fails, the CAPWAP tunnels between APs and AC2 become the active tunnels, and AC2 becomes the active AC. After AC1 recovers, it becomes the active AC or still functions as the standby AC depending on the configuration.

Figure 21-2  1+1 dual-link cold backup networking diagram

Updated: 2019-12-28

Document ID: EDOC1000141952

Views: 201742

Downloads: 522

Average rating:
This Document Applies to these Products

Related Version

Related Documents

Previous Next