Huawei AC6605 - Page 17

AC6605 Access Controller
Dual-Link Backup White Paper
1 Dual-Link Backup
Issue 01 (2012-05-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
12

In Layer 2 networking, the ACs can use only IP addresses of VLANIF interfaces as their
source IP addresses to communicate with APs. In Layer 3 networking, the ACs can also
use loopback addresses as source IP addresses.

Enable the dual-link backup function on AC1 and AC2 and set a priority for each AC.
Run the following commands:
[AC6605_AC1] wlan
[AC6605_AC1-wlan-view] wlan ac protect enable protect-ac 19.19.19.2 priority 0
[AC6605_AC2] wlan
[AC6605_AC2-wlan-view] wlan ac protect enable protect-ac 19.19.19.1 priority 7

In the preceding commands, protect-ac specifies the IP address of the standby AC. Set
this parameter to the other AC's IP address on each AC. The active AC must have a
higher priority than the standby AC. The value 0 indicates the highest priority, and the
value 7 indicates the lowest priority. A smaller value indicates a higher priority. Run the
display wlan ac protect command to check the AC priorities.
[AC6605_AC1] display wlan ac protect
------------------------------------------------------------
Protect state : enable
Protect AC : 19.19.19.2
Priority : 0
Protect restore : enable
------------------------------------------------------------
[AC6605_AC2] display wlan ac protect
------------------------------------------------------------
Protect state : enable
Protect AC : 19.19.19.1
Priority : 7
Protect restore : enable
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