Clustering Configuration Using Multiple Apc (Wec8500/ Wec8050) - Samsung WEC8500 Operation Manual

In this configuration, several APC s are used to minimize service disruption caused by a
disconnected APC and to enhance service sustainability. Basically, two or more APC s
must be installed in the same site for APC redundancy. The redundancy configuration
includes active-active configuration, active-standby configuration, and many-to-one
configuration. An operator can select a configuration based on the number of available
APC s and redundancy level.
Configuration Synchronization between Multiple APCs
When providing service with multiple APCs in redundancy configuration, all
service settings except network settings, etc. must be identical across all APCs.
Therefore, the service configuration synchronization function is provided to
eliminate the inconvenience of having to repeat the same configuration across all
individual APCs.
When service settings are changed on the master controller, the settings are
automatically applied to the connected slave devices. The service configuration
synchronization function currently supports two APCs only.
For more information on service configuration synchronization, see [10.10 Service
Configuration Synchronization].
1.4.3 Clustering Configuration using Multiple APC (WEC8500/
WEC8050)
The W-EP environment has various area sizes, user density and number of users. If only a
single APC is required for service and management, the complexity of network
configuration or management is not high. However, if the capacity of a single APC is not
sufficient, multiple APC s must be installed for service. The WEC8500/WEC8050 is a
Samsung APC model providing the clustering environment.
To set up a wireless LAN network in an environment where multiple WEC8500s are
installed, the integrated management system and user service must be provided through
clustering configuration between the WEC8500/WEC8050s. This allows inter APC
handover.
The WEC8500s configured in a cluster provides a service just like a single WEC8500
through periodic information exchange.
Inter APC handover
The inter APC handover is a handover between APCs. A clustering group is used
to provide this function and this clustering group means a virtual area.
Maximum 12 WEC8500 or maximum 2 WEC8050 can be bound to a single
group. An APC in a group cannot be added to another group.
It provides layer 3 handover and the handover is supported when a terminal
moves to an APC which have different subnets. A serving APC is called as an
anchor APC and a target APC is called as a foreign APC. The control path and
also the tunnel for data traffic between APCs provide security using IPSec.
The inter APC handover provides this function both in the standard Wi-Fi
handover and Samsung's unique AirMove method.
© SAMSUNG Electronics Co., Ltd.
CHAPTER 1. Access Point Controller System Overview
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