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User Manual ENGLISH
WHG-Series Wireless WLAN Controller
Copyright © 2017, 4ipnet, Inc. All rights reserved. All other trademarks mentioned are the property of their respective owners.
12
High Availability
The 4ipnet HA design principle is to use redundancy in achieving higher availability with minimum impact
during service transition. The 4ipnet HA approach implements a dedicated message link between ACs
(Access Controller) to create an N + 1 redundancy system where N is ≤ 3. Once the HA link has been
established, the Active ACs will be servicing all network traffic while the Standby AC will be in hot-standby
ready to take over network service in case an Active AC can no longer provide service.
1.
4ipnet HA feature is software determined to be enabled or disabled.
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When enabled, LAN1 port will become the dedicated HA port.
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When disabled, LAN1 remain its normal function as LAN port.
2.
The Web UI has a configuration item to designate this AC as either “Active” or “Standby” when HA
feature is enabled.
3.
All HA configuration are manually applied. This includes AC role as an Active or Standby as well as
the HA pair restoration after an AC goes down.
