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S12700 V200R010C00 Configuration Guide - WLAN-AC

This document describes native AC (hereinafter referred to as WLAN AC) configuration procedures and provides configuration examples.
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Summary of N+1 Backup Configuration Tasks

Summary of N+1 Backup Configuration Tasks

Table 23-1 lists the N+1 backup configuration tasks.

Table 23-1  N+1 backup configuration tasks

Scenario

Description

Method and Task

APs and ACs are located on a Layer 3 network, and an AP can discover two ACs through DHCP Option 43.

An AP can discover a total of two ACs in dynamic or static mode. In this scenario, the AP needs to select the active and standby ACs. You only need to configure the priority for the active AC and standby ACs and set the priority of the active AC higher than that of the standby AC.

Method 1

  1. Configuring Option 43 on the DHCP Server

  2. Configuring AC Roles (Method 1)

  3. Configuring Revertive Switchover

  4. (Optional) Configuring CAPWAP Heartbeat Detection

  5. Enabling N+1 Backup

NOTE:

Step 5 is performed at last.

APs and ACs are located on a Layer 2 network, and an AP can discover more than two ACs.

An AP can discover more than two ACs in dynamic or static mode. In this scenario, the AP needs to select the active and standby ACs. You need to configure both the global and individual priorities on all active ACs so that all APs can associate with the predefined active or standby AC.

Ensure that the ACs' priorities meet the following requirements: active AC's individual priority > standby AC's global priority > active AC's global priority.

Method 2

  1. Configuring AC Roles (Method 2)

  2. Configuring Revertive Switchover

  3. (Optional) Configuring CAPWAP Heartbeat Detection

  4. Enabling N+1 Backup

NOTE:

Step 4 is performed at last.

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Updated: 2019-08-21

Document ID: EDOC1000142094

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